CN116451596B - Power distribution network misoperation prevention verification method and device based on cable cabinet door model - Google Patents
Power distribution network misoperation prevention verification method and device based on cable cabinet door model Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/27—Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model
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- G06F18/24—Classification techniques
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/18—Network design, e.g. design based on topological or interconnect aspects of utility systems, piping, heating ventilation air conditioning [HVAC] or cabling
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- G—PHYSICS
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2113/00—Details relating to the application field
- G06F2113/04—Power grid distribution networks
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2113/00—Details relating to the application field
- G06F2113/16—Cables, cable trees or wire harnesses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Abstract
The invention provides a power distribution network misoperation prevention verification method and device based on a cable cabinet door model, and relates to the field of power safety, wherein the method comprises the following steps: acquiring an operation ticket task, and loading equipment model data and equipment real-time state of the power distribution network; the equipment model data comprises a cable cabinet door static model; if the type of the equipment to be operated is a cable cabinet door, obtaining a topological island from equipment model data based on the real-time state of the equipment of the cable cabinet door; decomposing the topological island into at least one topological sub-island according to the type of the operation to be executed; and judging whether the topological sub-island has grounding equipment according to the priority order, and obtaining misoperation-preventing check data according to the real-time state of the equipment of the grounding equipment. According to the method, the equipment connection relation of the electric power wiring diagram is perfected through the cable cabinet door static model, the complete and effective whole-network topology of the power distribution network is realized, the anti-misoperation locking judgment of the switching operation of the distribution network is carried out by combining the real-time state of equipment, the safety of operators is comprehensively ensured, and the working efficiency is improved.
Description
Technical Field
The invention relates to the field of electric power safety, in particular to a power distribution network misoperation prevention verification method and device based on a cable cabinet door model.
Background
The network distribution operation mainly comprises switching operation, equipment maintenance operation, fault first-aid repair operation, construction operation of external personnel and the like. With the continuous transformation and upgrading of the power distribution network, the application of the distributed power supply, wind power and photovoltaic new energy increases the random fluctuation of the power distribution network and the complexity of the power distribution network operation. The safety of field operators is ensured, the occurrence of misoperation accidents is prevented, and great challenges are faced.
In the related art, a traditional 'civil air defense plus system' management mode is mostly adopted, and for cable doors and other types of network gate equipment in a distribution network system, a logic formula for preventing misoperation is manually written, or electric equipment needing to be operated before and after the operation of the associated network gate on an electric primary wiring diagram can be locked by processing some special logics, so that the process is complex, the working efficiency of operators is low, the complete and effective power distribution network full-network topology cannot be realized, and the safety of distribution network switching operators is difficult to comprehensively guarantee.
Disclosure of Invention
Therefore, the invention aims to provide the misoperation prevention verification method and the misoperation prevention verification device for the power distribution network based on the cable cabinet door model, so that misoperation prevention safety control of electric operation is safely and efficiently realized, and the safety of operators is comprehensively ensured.
In a first aspect, an embodiment of the present invention provides a method for checking misoperation prevention of a power distribution network based on a cable cabinet door model, where the method includes: acquiring an operation ticket task, and loading equipment model data and equipment real-time state of the power distribution network; the operation ticket task comprises a device type to be operated and an operation type to be executed; the equipment model data comprises a cable cabinet door static model, wherein the cable cabinet door static model indicates: the electric connection relation between the cable cabinet door and the associated equipment of the cable cabinet door in the power distribution network; if the type of the equipment to be operated is a cable cabinet door, searching from equipment model data based on the real-time state of the equipment of the cable cabinet door to obtain a topology island; decomposing the topological island into topological sub-islands containing at least one of the following according to the type of operation to be performed: a first topological sub-island reflecting the interval to which the cable cabinet door belongs, a second topological sub-island reflecting the same unit as the cable cabinet door but different intervals, and a third topological sub-island reflecting the different unit from the cable cabinet door; and sequentially judging whether the topological sub-islands in the topological island are provided with grounding devices according to a preset priority order until a target topological sub-island with the grounding devices is obtained, and obtaining misoperation-preventing check data according to the real-time state of the devices in the target topological sub-island.
The static model of the cable cabinet door is established in advance by the following modes: creating a cable cabinet door model object; constructing a cable cabinet door spacing model; wherein, this interval model of cable cabinet door includes: the method comprises the steps of a subtype of a cable cabinet door, connecting line information of the cable cabinet door, an equivalent model of cable cabinet door power equipment, a topological node where the cable cabinet door is located, and a switch, a disconnecting link and a grounding equipment object in a cable cabinet door interval; constructing a cable cabinet door association interval model; wherein, the cable cabinet door association interval model comprises: grounding equipment in the upper-level interval associated with the interval where the cable cabinet door is located, and designated equipment in the upper-level interval associated with the interval where the cable cabinet door is located; and (5) associating the locking device of the cable cabinet door to obtain the cable cabinet door static model.
The step of constructing the cable cabinet door spacing model comprises the following steps: generating a first initial model of the cable cabinet door spacing model, and executing the following operations in the first initial model to obtain the cable cabinet door spacing model: determining the subtype of the cable cabinet door according to preset misoperation prevention logic of the cable cabinet door; wherein, the subtype comprises a common cable cabinet door or a transformer cabinet door; analyzing the primitives of the cable cabinet door on the electric primary wiring diagram of the power distribution network to obtain the connection line information of the cable cabinet door; the connecting wire information comprises an alternating current connecting wire and/or a direct current connecting wire which are directly connected with the cable cabinet door; generating an equivalent model of the cable cabinet door power equipment; the equivalent model is provided with equipment terminals, and the topological node numbers corresponding to the equipment terminals are set as follows: the connecting wire of the cable cabinet door belongs to a topological node; setting a topological node of the grounding equipment directly connected with the cable cabinet door as the topological node where the cable cabinet door is positioned; the grounding device includes: a ground knife or a pole ground wire on a line segment directly connected with the cable cabinet door; and decomposing the composite equipment in the cable cabinet door interval to construct a linkage disconnecting link object with a virtual terminal.
The step of constructing the cable cabinet door association interval model comprises the following steps: generating a second initial model of the cable cabinet door association interval model, and executing the following operations in the second initial model to obtain the cable cabinet door association interval model: analyzing the grounding equipment in the upper-stage switch interval related to the interval where the cable cabinet door is positioned, and setting at least one equipment unit for the grounding equipment in the upper-stage switch interval; constructing a branch object of the equipment in a previous-stage interval of interval association of the cable cabinet door, wherein the cabinet door and the branch object obviously disconnect the equipment, and associating a branch node of the branch object to a cable cabinet door interval model; wherein the composite device in the cable cabinet door association space is broken down into a distinct disconnect device and a ground device.
After the step of obtaining the static model of the cable cabinet door by the locking device of the related cable cabinet door, the method further comprises the following steps: generating a topological node model comprising a cable cabinet door static model based on an electric primary wiring diagram of the power distribution network; the topological node model indicates a power grid topological structure of the power distribution network; the topological node model comprises equipment model objects of equipment in the power distribution network and association relations among the equipment model objects.
If the type of the equipment to be operated is a cable cabinet door, and based on the real-time state of the equipment of the cable cabinet door, before the step of searching the equipment model data to obtain the topology island, the method further comprises the following steps: and checking the locking code of a locking device associated with the equipment to be operated in the operation ticket task to obtain a checking result.
The step of searching the topology island from the equipment model data based on the real-time state of the equipment of the cable cabinet door comprises the following steps: obtaining a virtual terminal of a cable cabinet door, searching for obviously disconnected equipment from equipment model data based on the real-time state of the equipment by taking a topological node of the virtual terminal of the cable cabinet door as a starting point, and obtaining area equipment with an obvious disconnection range; constructing a topological island based on the regional equipment of the obviously disconnected equipment; wherein, the topological island comprises: island state information of a topological island, topological node information in the topological island, electrical equipment information of an interval where a cable cabinet door is located, and electrical equipment information of an associated interval of the interval where the cable cabinet door is located.
Before the step of obtaining the virtual terminal of the cable cabinet door, taking the topological node where the virtual terminal of the cable cabinet door is located as a starting point, searching for the obviously disconnected equipment from the equipment model data based on the real-time state of the equipment, and obtaining the area equipment with the obviously disconnected range, the method further comprises the following steps: and searching the interval equipment of the cable cabinet door from the equipment model data, and constructing an interval object model based on the search result.
The method further comprises the following steps: if the type of the operation to be performed is to open the cable cabinet door, the topology sub-island decomposed by the topology island comprises: a first topological sub-island reflecting the interval to which the cable cabinet door belongs, a second topological sub-island reflecting the same unit as the cable cabinet door but different intervals, and a third topological sub-island reflecting the different unit from the cable cabinet door; if the type of operation to be performed is closing a cable cabinet door, the topology sub-islands of the topology island decomposition include: and the first topological sub-island reflects the interval of the cable cabinet door.
The type of the operation to be performed is that a cable cabinet door is opened; the step of sequentially judging whether the topological sub-island in the topological island has the grounding device according to the preset priority order until the target topological sub-island with the grounding device is obtained, and obtaining the misoperation-preventing check data according to the real-time state of the device in the target topological sub-island, wherein the step comprises the following steps: analyzing whether grounding equipment exists in the first topological sub-island; if the first topological sub-island is provided with grounding equipment, checking whether the associated equipment of the cable cabinet door is provided with voltage to ground or not, and obtaining misoperation-preventing check data.
The method further comprises the following steps: if the first topological sub-island does not have the grounding device, judging whether the second topological sub-island and the third topological sub-island have the grounding device or not in sequence until the topological sub-island with the grounding device is obtained; and checking whether the associated equipment of the cable cabinet door has voltage to ground or not, and obtaining the anti-misoperation check data.
The type of operation to be performed in the operation ticket task is to close the cable cabinet door; the method further comprises the following steps: and analyzing the dismantling state of the high-voltage common ground wire in the interval of the cable cabinet door to obtain the misoperation-preventing check data.
The type of the equipment to be operated in the operation ticket task also comprises obviously disconnecting equipment, and the type of the operation to be executed in the operation ticket task is a combined operation; the method further comprises the following steps: searching on two sides of the device which is obviously disconnected on the basis of the real-time state of the device to obtain a plurality of topological islands; or if the attribute of the obviously disconnected equipment is a disconnecting link, searching by taking two terminals of a disconnecting link branch as starting points based on the real-time state of the equipment, so as to obtain a plurality of topological islands.
The equipment to be operated in the operation ticket task also comprises obviously disconnected equipment, and the type of operation to be executed in the operation ticket task is a combined operation; the method further comprises the following steps: analyzing the switch state of an interval model of obviously disconnected equipment; analyzing the grounding state of the grounding device in a plurality of topological islands corresponding to the obviously disconnected device; and analyzing the states of the cable cabinet doors on the two sides of the obviously disconnected equipment to obtain the misoperation-preventing check data.
The equipment type to be operated in the operation ticket task further comprises grounding equipment; the method further comprises the following steps: if the type of the operation to be executed of the grounding device is a combined operation, taking a topological node of the grounding device as a starting point, and searching based on the real-time state of the device to obtain a topological island; if the type of the operation to be performed of the grounding device is not the combined operation, and the type of the operation to be performed is that the grounding knife is pulled or the ground wire under the rod is removed, the topological node where the device terminal of the grounding device is located is taken as a starting point, or the topological node where the branch terminal of the grounding device is located is taken as a starting point, and a plurality of topological islands are obtained based on the real-time state search of the device.
The equipment to be operated in the operation ticket task further comprises grounding equipment; the operation type to be executed in the operation ticket task is a combination operation; the method further comprises the following steps: analyzing whether the two sides of the line of the grounding device are obviously disconnected in the topological island; and checking whether the grounding equipment has voltage to ground or not, and obtaining the anti-misoperation check data.
The equipment to be operated in the operation ticket task further comprises grounding equipment; the type of operation to be executed in the operation ticket task is that the ground knife is pulled open or the ground wire under the rod is removed; the method further comprises the following steps: analyzing whether a cable cabinet door in the interval of the grounding equipment is closed or not; analyzing whether a ground knife or a pole lower ground wire exists in a plurality of topological islands corresponding to the grounding equipment; if a ground knife or a pole ground wire exists, whether a cable cabinet door in the topological island is closed or not is analyzed, and misoperation-preventing check data are obtained.
The equipment to be operated in the operation ticket task further comprises a common switch; the method further comprises the following steps: if the operation type to be executed in the operation ticket task is switch operation, analyzing whether a power supply is grounded or not, and analyzing whether the states of the knife switches at two sides of the common switch are consistent or not to obtain misoperation-preventing check data; if the operation type to be executed in the operation ticket task is loop closing operation or loop opening operation, analyzing the load state, the circuit voltage fluctuation state and the states of the relay protection device and the safety automatic device of equipment in a circuit where the common switch is positioned after the operation type to be executed is executed, and obtaining the error operation prevention verification data.
The method comprises the steps of sequentially judging whether the topological sub-island in the topological island has grounding equipment according to a preset priority order until a target topological sub-island with the grounding equipment is obtained, and obtaining misoperation-preventing verification data according to the real-time state of the equipment in the target topological sub-island, wherein the method further comprises the following steps: and verifying the verification data based on a preset topology logic to obtain a verification result.
After the step of verifying the verification data based on the preset topology logic to obtain the verification result, the method further comprises the following steps: if the verification result indicates that verification is passed, generating a signal for allowing unlocking of the equipment to be operated so as to unlock the equipment to be operated through an unlocking device; and acquiring operation records and equipment state real-time information of equipment to be operated, and updating the state of the equipment to be operated in the electric primary wiring diagram based on the equipment state real-time information.
The method further comprises the following steps: acquiring a video stream related to the equipment to be operated; the video stream comprises video information of associated equipment of equipment to be operated or video information of equipment in an interval of the equipment to be operated; decoding the video stream to obtain a picture stream corresponding to the video stream; based on a preset neural network reasoning model, analyzing the picture stream in a specified analysis type to obtain an analysis result; the designated analysis type comprises area intrusion analysis, knife switch analysis, worker dressing specification analysis or equipment associated device analysis.
The step of analyzing the picture stream to obtain an analysis result based on the preset neural network reasoning model by performing the analysis of the specified analysis type comprises the following steps: based on a preset neural network reasoning model, carrying out regional intrusion analysis on the picture stream to obtain a first analysis result; the first analysis result indicates: whether to mistakenly enter a charging interval; carrying out knife switch analysis on the picture stream based on a preset neural network reasoning model to obtain a second analysis result; in the process of knife switch analysis, a neural network reasoning model identifies a knife switch arm of a knife switch in a picture stream, and determines the equipment state of the knife switch based on the state of the knife switch arm; the second analysis result comprises the equipment state of the disconnecting link; based on a preset neural network reasoning model, carrying out worker dressing standard analysis on the picture stream to obtain a third analysis result; the third analysis result indicates: whether the worker wears the safety helmet and/or whether the worker wears the work clothes; based on a preset neural network reasoning model, analyzing a device associated with the picture stream by using equipment to obtain a fourth analysis result; the fourth analysis result indicates: indicator light status associated with the device.
After the step of analyzing the image stream to obtain the analysis result by performing the analysis of the specified analysis type based on the preset neural network reasoning model, the method further comprises the following steps: and generating a verification result based on the analysis result and the verification data for preventing misoperation.
In a second aspect, an embodiment of the present invention provides a power distribution network anti-misoperation verification device based on a cable cabinet door model, where the device includes: the first loading module is used for acquiring an operation ticket task and loading equipment model data and equipment real-time state of the power distribution network; the operation ticket task comprises a device type to be operated and an operation type to be executed; the equipment model data comprises a cable cabinet door static model, wherein the cable cabinet door static model indicates: the electric connection relation between the cable cabinet door and the associated equipment of the cable cabinet door in the power distribution network; the first search module is used for searching from the equipment model data to obtain a topological island based on the real-time state of the equipment of the cable cabinet door if the type of the equipment to be operated is the cable cabinet door; the first decomposition module is used for decomposing the topological island into topological sub-islands containing at least one of the following according to the type of operation to be performed: a first topological sub-island reflecting the interval to which the cable cabinet door belongs, a second topological sub-island reflecting the same unit as the cable cabinet door but different intervals, and a third topological sub-island reflecting the different unit from the cable cabinet door; the first determining module is used for sequentially judging whether the topological sub-islands in the topological island are provided with grounding devices according to a preset priority order until a target topological sub-island with the grounding devices is obtained, and obtaining misoperation-preventing check data according to the real-time state of the devices in the target topological sub-island.
In a third aspect, an embodiment of the present invention provides a power distribution network anti-misoperation verification device based on a cable cabinet door model, where the device includes a processor and a memory, where the memory stores machine executable instructions that can be executed by the processor, and the processor executes the machine executable instructions to implement the above power distribution network anti-misoperation verification method based on the cable cabinet door model.
In a fourth aspect, an embodiment of the present invention provides a machine-readable storage medium storing machine-executable instructions that, when invoked and executed by a processor, cause the processor to implement the above-described anti-misoperation verification method for a power distribution network based on a cable cabinet door model.
The embodiment of the invention has the following beneficial effects:
the invention provides a power distribution network misoperation prevention verification method, device and equipment based on a cable cabinet door model, wherein the method comprises the following steps: acquiring an operation ticket task, and loading equipment model data and equipment real-time state of the power distribution network; the operation ticket task comprises a device type to be operated and an operation type to be executed; the equipment model data comprises a cable cabinet door static model, wherein the cable cabinet door static model indicates: the electric connection relation between the cable cabinet door and the associated equipment of the cable cabinet door in the power distribution network; if the type of the equipment to be operated is a cable cabinet door, searching from equipment model data based on the real-time state of the equipment of the cable cabinet door to obtain a topology island; decomposing the topological island into topological sub-islands containing at least one of the following according to the type of operation to be performed: a first topological sub-island reflecting the interval to which the cable cabinet door belongs, a second topological sub-island reflecting the same unit as the cable cabinet door but different intervals, and a third topological sub-island reflecting the different unit from the cable cabinet door; and sequentially judging whether the topological sub-islands in the topological island are provided with grounding devices according to a preset priority order until a target topological sub-island with the grounding devices is obtained, and obtaining misoperation-preventing check data according to the real-time state of the devices in the target topological sub-island. In the method, an electric connection relation between a cable cabinet door and associated equipment is included in a cable cabinet door static model, equipment model data and equipment real-time state of a power distribution network are loaded after an operation ticket task is acquired, when equipment to be operated is the cable cabinet door, a topology island is searched in the equipment model data according to the equipment real-time state of the cable cabinet door, and the topology island is decomposed into at least one topology sub-island according to the type of operation to be executed; and sequentially judging whether the topological sub-island has grounding equipment or not according to the priority order until a target topological sub-island with the grounding equipment is obtained, and finally obtaining misoperation-preventing check data according to the real-time state of the equipment in the grounding equipment in the target topological sub-island. According to the method, the equipment connection relation of the power system wiring diagram is perfected through the cable cabinet door static model, the complete and effective power distribution network full-network topology is achieved, further, the topology island related to the cable cabinet door can be automatically generated, the topology island is decomposed into at least one topology sub-island according to the type of operation to be executed, whether the topology sub-island has grounding equipment or not is judged according to a preset priority order, the real-time equipment state of the grounding equipment in the target topology sub-island is combined, misoperation-preventive locking judgment of distribution network switching operation is achieved, comprehensiveness, accuracy and high efficiency of misoperation-preventive verification are guaranteed, safety of operators is comprehensively guaranteed, and working efficiency of the operators is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are some embodiments of the invention and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a power distribution network misoperation prevention verification method based on a cable cabinet door model, which is provided by the embodiment of the invention;
fig. 2 is a schematic diagram of a static model modeling flow of a cable cabinet door according to an embodiment of the present invention;
Fig. 3 is a schematic diagram of an anti-misoperation verification process for a cable cabinet door according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an anti-misoperation verification process for obviously disconnecting equipment according to an embodiment of the present invention;
fig. 5 is a schematic diagram of an anti-misoperation verification process for a grounding device according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an anti-misoperation verification process for a common switch device according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a process of a comprehensive anti-misdecision stage according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of an intelligent comprehensive anti-misoperation process according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of another process of the comprehensive decision stage according to the embodiment of the present invention;
fig. 10 is a schematic structural diagram of a power distribution network misoperation prevention verification device based on a cable cabinet door model according to an embodiment of the present invention;
fig. 11 is a schematic diagram of a power distribution network misoperation prevention verification device based on a cable cabinet door model according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The distribution network operation is one of the key points of the distribution network operation and maintenance management work, and the main content comprises: switching operation, equipment maintenance operation, fault repair operation, management and monitoring of construction operation processes of external personnel and the like. With the continuous transformation and upgrading of the power distribution network, the application of the distributed power supply, wind power and photovoltaic new energy increases the random fluctuation of the power grid and the complexity of the electric switching operation. The safety of field operators is ensured, the occurrence of misoperation accidents is prevented, and great challenges are faced.
The cable cabinet is a net door equipment cabinet body for implementing tapping, branching, connecting and converting circuits on cable lines; because of the lack of a unified modeling method of a model of network gate equipment such as a cable cabinet and the like, in the prior art, when the network gate equipment in a distribution network is subjected to error prevention management, an error prevention logic formula is manually written, or electric equipment needing to be operated before and after the operation of the associated network gate on an electric primary wiring diagram is processed, and the error prevention control method of locking of the electric equipment can be realized by processing some special logics.
For common electrical equipment in a power distribution network, error prevention management can be realized through topology logic, however, the power distribution network topology of network gate equipment such as a cable cabinet is lacking, and the whole effective power distribution network topology is still not completely available, so that the overall, efficient and practical error prevention management and control flow of the electrical equipment cannot be realized, and the safety of distribution network switching operation personnel and the working efficiency cannot be ensured.
Based on the above, the embodiment of the invention provides a power distribution network misoperation prevention verification method and device based on a cable cabinet door model, and the technology can be applied to management and operation scenes of electrical equipment of a power distribution network.
For the convenience of understanding the present embodiment, for the convenience of understanding, a specific flow of an embodiment of the present invention is described below, referring to fig. 1, and an embodiment of a power distribution network anti-misoperation verification method based on a cable cabinet door model in the embodiment of the present invention includes:
step S101, acquiring an operation ticket task, and loading equipment model data and equipment real-time state of a power distribution network; the operation ticket task comprises a device type to be operated and an operation type to be executed; the equipment model data comprises a cable cabinet door static model, wherein the cable cabinet door static model indicates: the electric connection relation between the cable cabinet door and the associated equipment of the cable cabinet door in the power distribution network;
The execution main body of the invention can be a terminal or a server, and an error prevention system is operated in the terminal or the server, and can regard the whole power distribution network as a topological graph combining lines and points according to the connection relation of the electrical equipment, and perform topology search according to a depth-first search algorithm according to the connection relation of the electrical equipment so as to realize error prevention judgment of the electrical equipment. In this embodiment, the error prevention system may be a "cloud, edge, end" integrated collaborative error prevention system based on a cloud image platform, where the cloud refers to an intelligent comprehensive error prevention decision end; the edges refer to intelligent anti-misoperation analysis auxiliary modules; the terminal refers to a sensing layer, and can acquire sensor data of the power equipment; based on the anti-misoperation system, basic graph module data service can be provided by using cloud graph service through the power distribution network electrical wiring graph stored in the cloud of the anti-misoperation system, the electrified state and the topological connection relation of equipment in all power distribution networks are obtained, and further, according to the topological connection relation and the real-time state information of the equipment, the topological logic is automatically generated, so that an anti-misoperation verification function is provided. The following execution subject takes a terminal as an example, and the terminal may be a mobile terminal, for example, a smart phone or the like.
The operation ticket can be a switching operation ticket, the operation ticket task comprises a device type to be operated and an operation type to be executed, and a worker can determine the device type to be operated and the operation type to be executed according to the operation ticket task. The operation ticket is an inversion operation ticket, and when the operation ticket task is to open the cable cabinet door, the type of the equipment to be operated is the cable cabinet door; correspondingly, the types of operations to be performed are: and opening the cable cabinet door. When the task content of the operation ticket is that a disconnecting link is closed, the type of equipment to be operated is a disconnecting link; the corresponding operation types to be executed are as follows: closing the knife switch. The device model data may be topology node model data established based on an electrical wiring diagram of the power distribution network. In the device model data, various device primitives on the electrical wiring diagram are abstracted into individual nodes irrespective of their patterns, and power lines connecting the nodes are abstracted into lines, thereby representing the relationships between the nodes in the form of a topology diagram. The equipment model data comprises equipment model objects and association relations among the model objects, and reflects the topological structure of the power distribution network. The equipment model data can comprise equipment model data such as transformers, relays and the like and locking device model data such as an electric coding lock, a mechanical lock, a junction box and the like according to different equipment types, and can also comprise a network model such as a cable cabinet door static model, wherein the cable cabinet door static model can be understood as a topological node model established based on connection relations of cable cabinet door equipment in an electric wiring diagram of a power distribution network, and the cable cabinet door static model comprises cable cabinet door model objects and electric connection relations between cable cabinet doors and associated equipment of the cable cabinet doors in the power distribution network. The cable cabinet door related equipment comprises grounding equipment such as a grounding knife and a pole lower ground wire which are directly connected with the cable cabinet door, a locking device which is directly connected with the cable cabinet door, and electrical equipment such as a switch and a transformer. The real-time status of the device can be understood as different device types, and different device statuses, such as an open status and a closed status of the portal device; grounded state of the grounded device, ungrounded state, etc.
In the step, an operation ticket can be acquired through a local channel or a wireless channel downloading mode, after the operation ticket is obtained, equipment model data and equipment real-time state of a power distribution network are loaded on a terminal, and in actual implementation, the terminal can establish communication connection through a cellular network, a wireless network and a server of an error prevention system, and load equipment model data and equipment real-time state including a cable cabinet door static model in the power distribution network based on cloud picture service of the error prevention system.
It should be noted that, in this step, the device model data and the device real-time state of the power distribution network may be displayed in a topology dynamic model data manner, where the topology dynamic model is a model constructed by combining dynamic properties such as the device real-time state and the power grid operation mode based on a cable cabinet door static model through a depth priority algorithm or a breadth priority algorithm, and the topology dynamic model may change along with the change of the power grid state.
In the step, an operation ticket task is acquired, equipment model data and equipment real-time state of the power distribution network are loaded, and the equipment model data and the equipment real-time state of the power distribution network are the basis of misoperation prevention verification analysis of the power distribution network.
Step S102, if the type of the equipment to be operated is a cable cabinet door, searching from equipment model data based on the real-time state of the equipment of the cable cabinet door to obtain a topological island;
the topology islands may be understood that, in the device model data corresponding to the power distribution network, electrical devices with direct or indirect connection relationships may be aggregated together in advance to construct one or more topology islands, so when an operation is to be performed on a certain electrical device, only the topology island corresponding to the electrical device needs to be searched according to the operation to be performed, and error operation prevention verification is performed on the topology island, without involving the whole power distribution network, thereby greatly reducing the operation amount. Inside and outside the topology island, which reflects a collection of electrical devices of different scope, as a subset of the electrical connections of the power distribution network, will change as the power distribution network state changes. Such as disconnectors, circuit breakers, and state changes in the distribution network, all cause the topology island to change state. The topology island comprises error-proof associated equipment, topology node information subordinate to the island, electrified and grounded states of the topology island and the like.
After the type of the equipment to be operated and the type of the operation to be executed in the operation ticket task are determined, if the type of the equipment to be operated is a cable cabinet door, a topological island corresponding to the cable cabinet door needs to be searched from equipment model data, apparent disconnection equipment in all directions can be searched according to a depth-first algorithm from the topological node of the cable cabinet door in the equipment model data, area equipment with an apparent disconnection range is searched, a topological island is built according to the connection relation between the equipment in the apparent disconnection equipment area and the equipment, the built topological island changes along with the change of the state of a power grid, and the real-time state of equipment including the equipment is changed. The clear disconnection range herein means a special area formed after the clear disconnection device is operated, for example, pulled apart, disconnected, or the like. The obvious disconnection device is some power devices that can form obvious disconnection points after the action of the obvious disconnection device, for example: knife switch, handcart, chain knife switch, etc. Before the equipment to be operated is overhauled and maintained, obvious disconnection points are required to be formed on the power supply side of all possible calls, so that the safety of operators is ensured.
In the step, when the type of the equipment to be operated is a cable cabinet door, according to the real-time state of the equipment of the cable cabinet door, searching to obtain a topology island related to the cable cabinet door from equipment model data, wherein the topology island comprises error-proof verification related equipment, topology node information belonging to the island, electrified and grounded states of the topology island and the like.
Step S103, decomposing the topological island into topological sub-islands containing at least one of the following according to the type of operation to be performed: a first topological sub-island reflecting the interval to which the cable cabinet door belongs, a second topological sub-island reflecting the same unit as the cable cabinet door but different intervals, and a third topological sub-island reflecting the different unit from the cable cabinet door;
the interval refers to a set of power system resources and represents physical grouping of modularized equipment, and the interval information comprises main equipment of the interval where a cable cabinet door is located, and equipment such as a disconnecting link, a handcart, grounding equipment and the like contained in the interval. The device types of the main device are typically a switch, a bus, a transformer, and the grounding device includes: ground knives, ground wires, etc. The units are equipment information sets in a certain area, the range can be configured according to specific applications, and different units generally reflect ring main units, box transformer units, power distribution rooms and the like in different areas.
In actual implementation, in order to more conveniently complete the anti-error checking task, when the type of the equipment to be operated is a cable cabinet door, the topology island related to the cable cabinet door can be further decomposed into a plurality of topology sub-islands, and the anti-error judgment is carried out according to the priority and the anti-error logic requirement. The topology islands are herein decomposed into topology sub-islands comprising at least one of a first topology sub-island reflecting the spacing to which the cable cabinet door belongs, a second topology sub-island reflecting the same unit as the cable cabinet door but different spacing, and a third topology sub-island reflecting a different unit from the cable cabinet door, depending on the type of operation to be performed.
For example, when the cable cabinet door is opened or the cable cabinet door is closed, a topology island needs to be searched, and when the operation type is that the cable cabinet door is opened, the searched topology island can be decomposed into three topology subislands, namely, a first topology subisland reflecting the interval to which the cable cabinet door belongs, a second topology subisland reflecting the same unit as the cable cabinet door but different intervals, and a third topology subisland reflecting the different unit from the cable cabinet door. When the operation type is closing the cable cabinet door, the topological sub-island may be only the first topological sub-island reflecting the interval to which the cable cabinet door belongs.
Step S104, judging whether the topological sub-islands in the topological island are provided with grounding devices or not in sequence according to a preset priority order until a target topological sub-island with the grounding devices is obtained, and obtaining misoperation-preventing check data according to the real-time state of the devices in the target topological sub-island.
The grounding device comprises a grounding knife and a pole lower ground wire; the above verification data can be understood as an analysis result of the real-time state of the electrical equipment in the topology island, and whether the operation to be executed is safe or not is determined by verifying the verification data through the topology logic. The device types of the electrical devices to be analyzed are different from each other.
Here, when the type of the equipment to be operated is a cable cabinet door, if the type of the operation to be performed is that the cable cabinet door is opened, the topology island needs to be in a grounding state, and the grounding state is an electricity safety measure adopted for ensuring the normal operation and personal safety of the electrical equipment. Judging whether the topological island is in a grounding state or not can be determined by judging the real-time states of the grounding devices such as the grounding knife, the under-pole ground wire and the like, when the grounding knife and the under-pole ground wire are in the grounding state, the topological island where the grounding knife and the under-pole ground wire are positioned is in the grounding state, and when the grounding knife and the under-pole ground wire have grounding voltage, the topological island where the grounding knife and the under-pole ground wire are positioned is not in the grounding state.
Similarly, if the type of operation to be performed is closing of the cable cabinet door, it is also required to determine whether the topology island has a grounding device, and the real-time state of the device of the grounding device needs to be within the interval of the cable cabinet door, and the high-voltage common grounding wire is in a dismantling state.
Therefore, after the topological island is decomposed into topological sub-islands, if the type of the equipment to be operated is a cable cabinet door, whether the topological sub-islands in the topological island have grounding equipment or not can be judged in sequence according to a preset priority order until a target topological sub-island with the grounding equipment is obtained, and misoperation prevention verification data are obtained according to the real-time state of the equipment in the target topological sub-island.
The preset priority order may be determined according to the proximity grounding principle, for example, the first topological sub-island is prioritized over the second topological sub-island, and the second topological sub-island is prioritized over the third topological sub-island, that is, whether the topological sub-islands have a ground knife and an under-pole ground wire grounding device or not may be sequentially determined according to the first topological sub-island, the second topological sub-island and the third topological sub-island until a target topological sub-island with a grounding device is obtained, the real-time state of the device of the grounding device of the target topological sub-island is determined, and the determination result is used as the anti-misoperation verification data.
Of course, if there is only one topological sub-island, it is only necessary to determine whether the topological sub-island has a grounding device. And obtaining the anti-misoperation check data according to the real-time state of the equipment in the topological sub-island grounding equipment.
In the mode, in the field of distribution network safety operation management and control, an error prevention system based on a cloud picture platform is used for establishing distribution network error prevention system basic data and services, a cable cabinet door and electric power primary equipment model is established, electronic management of an electric switching operation ticket is used for starting, effective monitoring and protection are carried out on the related operation flow, comprehensiveness, accuracy and high efficiency of error prevention rules are guaranteed, and therefore the safety guarantee level of electric operators is improved, and the working efficiency of the operators is also improved.
According to the power distribution network misoperation prevention verification method based on the cable cabinet door model, the operation ticket task is acquired, and the equipment model data and the real-time equipment state of the power distribution network are loaded; the operation ticket task comprises a device type to be operated and an operation type to be executed; the equipment model data comprises a cable cabinet door static model, wherein the cable cabinet door static model indicates: the electric connection relation between the cable cabinet door and the associated equipment of the cable cabinet door in the power distribution network; if the type of the equipment to be operated is a cable cabinet door, searching from equipment model data based on the real-time state of the equipment of the cable cabinet door to obtain a topology island; decomposing the topological island into topological sub-islands containing at least one of the following according to the type of operation to be performed: a first topological sub-island reflecting the interval to which the cable cabinet door belongs, a second topological sub-island reflecting the same unit as the cable cabinet door but different intervals, and a third topological sub-island reflecting the different unit from the cable cabinet door; and sequentially judging whether the topological sub-islands in the topological island are provided with grounding devices according to a preset priority order until a target topological sub-island with the grounding devices is obtained, and obtaining misoperation-preventing check data according to the real-time state of the devices in the target topological sub-island. In the method, an electric connection relation between a cable cabinet door and associated equipment is included in a cable cabinet door static model, equipment model data and equipment real-time state of a power distribution network are loaded after an operation ticket task is acquired, when equipment to be operated is the cable cabinet door, a topology island is searched in the equipment model data according to the equipment real-time state of the cable cabinet door, and the topology island is decomposed into at least one topology sub-island according to the type of operation to be executed; and sequentially judging whether the topological sub-island has grounding equipment or not according to the priority order until a target topological sub-island with the grounding equipment is obtained, and finally obtaining misoperation-preventing check data according to the real-time state of the equipment in the grounding equipment in the target topological sub-island. According to the method, the equipment connection relation of the power system wiring diagram is perfected through the cable cabinet door static model, the complete and effective power distribution network full-network topology is realized, further, the topology island related to the cable cabinet door can be automatically generated, the topology island is decomposed into at least one topology sub-island according to the type of operation to be executed, and the equipment real-time state of the equipment in the target topology sub-island is combined, so that misoperation-preventive locking judgment of distribution network switching operation is realized, comprehensiveness, accuracy and high efficiency of misoperation-preventive verification are guaranteed, safety of operators is comprehensively guaranteed, and working efficiency of the operators is improved.
Various cable cabinet doors, metering cabinets, capacitors and other grid door type electrical equipment are mainly used for isolating primary equipment from a working area and can be opened only when the equipment is overhauled. Before the related isolating switch is not pulled and safety measures are taken, the grid door equipment cannot be opened to prevent sudden incoming calls from injuring field workers, and the grid door type electrical equipment is subjected to switching safety operation, which corresponds to the mistaken entering prevention electrified interval in the five-prevention rule.
The DL/T1080 power enterprise application integrated distribution management system interface defines an equipment container model, but does not define a container Door model, although some students and engineering personnel establish a standardized Door model, the related locking device LockDevice model is required to write an anti-misoperation logic formula or relate electric equipment which needs to be operated before and after the operation of the Door on an electric primary wiring diagram, and process special logic 'existence', 'priority', 'simultaneous', physical structure limit equipment mechanical locking conditions and special operation sequence of switching operators according to the position relation of the electric equipment.
Based on the above, the embodiment provides a modeling mode of a static model of a cable cabinet door, and the mode can unify models of a net door and electric power primary equipment, enhance practicality, be applied to an engineering site better, and ensure safety and high efficiency of an anti-misoperation switching process.
The following embodiments provide specific implementations for creating a static model of a cable cabinet door.
Specifically, the static model of the cable cabinet door is established in advance by the following modes:
creating a cable cabinet door model object; constructing a cable cabinet door spacing model; wherein, this interval model of cable cabinet door includes: the method comprises the steps of a subtype of a cable cabinet door, connecting line information of the cable cabinet door, an equivalent model of cable cabinet door power equipment, a topological node where the cable cabinet door is located, and a switch, a disconnecting link and a grounding equipment object in a cable cabinet door interval; constructing a cable cabinet door association interval model; wherein, the cable cabinet door association interval model comprises: grounding equipment in the upper-level interval associated with the interval where the cable cabinet door is located, and designated equipment in the upper-level interval associated with the interval where the cable cabinet door is located; and (5) associating the locking device of the cable cabinet door to obtain the cable cabinet door static model.
The cable cabinet door static model belongs to a model of a net door type, and comprises cable cabinet door model objects and electrical connection relations between cable cabinet doors and associated equipment of the cable cabinet doors in a power distribution network. The cable cabinet door model object comprises a main resource identifier, a name, a description, a locking device ID code and the like of the power system. The interval refers to a set of power system resources, represents physical grouping of modularized equipment, is a complete loop in an electric wiring diagram, and comprises main equipment at intervals of cable cabinet doors and equipment such as a disconnecting link, a handcart, a ground knife and the like, wherein the equipment types of the main equipment at intervals of the cable cabinet doors are generally switches, buses and transformers; above-mentioned cable cabinet door originally separates model can understand the collection of electric connection relation between model and the model of cable cabinet door place interval, and cable cabinet door originally separates model and includes: the cable cabinet door comprises a subtype of the cable cabinet door, connecting line information of the cable cabinet door, an equivalent model of cable cabinet door power equipment, a topological node where the cable cabinet door is located, and switch, disconnecting link and grounding equipment objects in a cable cabinet door interval. The cable cabinet door correlation interval model can be understood as a collection of adjacent interval electric equipment models and electric connection relations between the models; adjacent intervals include switch intervals, bus intervals, transformer intervals, and the like. The upper-level interval related to the interval of the cable cabinet door can be an upper-level switch interval related to the interval of the cable cabinet door, and the upper-level switch interval comprises a switch, a disconnecting link, a ground knife, a pole lower ground wire, a linkage disconnecting link and a three-station switch composite type electrical device; if the associated spaced equipment and cable doors are not in a single wiring diagram, a different unit needs to be provided. The locking device is used for locking other equipment so as to prevent the other equipment from being misoperation; the locking devices all have a unique code which can be identified by the computer key. One or more locking devices may be associated with a cable cabinet door in a distribution network.
In the mode, a cable cabinet door model object is required to be created, a cable cabinet door space model is required to be built, a cable cabinet door association space model is required to be built, and then a locking device of the cable cabinet door is required to be associated, so that a cable cabinet door static model is obtained.
In particular, the following provides a specific embodiment for constructing the cable cabinet door present spacing model.
Generating a first initial model of the cable cabinet door spacing model, and executing the following operations in the first initial model to obtain the cable cabinet door spacing model: determining the subtype of the cable cabinet door according to preset misoperation prevention logic of the cable cabinet door; wherein, the subtype comprises a common cable cabinet door or a transformer cabinet door; analyzing the primitives of the cable cabinet door on the electric primary wiring diagram of the power distribution network to obtain the connection line information of the cable cabinet door; the cable cabinet door comprises a cable cabinet door, wherein the connecting wire information comprises an alternating current connecting wire and/or a direct current connecting wire which are directly connected with the cable cabinet door; generating an equivalent model of the cable cabinet door power equipment; the equivalent model is provided with equipment terminals, and the topological node numbers corresponding to the equipment terminals are set as follows: the connecting wire of the cable cabinet door belongs to a topological node; setting a topological node of the grounding equipment directly connected with the cable cabinet door as the topological node where the cable cabinet door is positioned; the grounding device includes: a ground knife or a pole ground wire on a line segment directly connected with the cable cabinet door; and decomposing the composite equipment in the cable cabinet door interval to construct a linkage disconnecting link object with a virtual terminal.
The cable cabinet door interval model can be understood as a set of electrical connection relations between models of the interval where the cable cabinet door is located; the first initial model is understood to be the model of the compartment in which the cable cabinet door is located.
Generating a first initial model, and on the basis of the first initial model, performing the following operations to obtain a cable cabinet door spacing model:
firstly, determining the subtype of the cable cabinet door according to preset misoperation prevention logic of the cable cabinet door, wherein the subtype comprises a common cable cabinet door or a transformer cabinet door.
Specifically, the subtype of the cable cabinet door can be determined by the state of the ground knife or the under-rod ground wire in the interval where the cable cabinet door is located. The common cable cabinet door misoperation prevention logic needs to be hung on the ground knife or the ground wire below the pole in the interval, and the transformer cabinet door misoperation prevention logic needs to simultaneously meet the requirements that the ground knife in the interval is closed and the ground wires below the poles on two sides of the transformer are hung on the ground wire below the pole, so that the subtype of the cable cabinet door in the interval model of the cable cabinet door can be determined according to the preset misoperation prevention logic of the cable cabinet door.
And then, analyzing the graphic elements of the cable cabinet door on the electric primary wiring diagram of the power distribution network to obtain the connection line information of the cable cabinet door. The connecting wire information comprises an alternating current connecting wire and/or a direct current connecting wire which are directly connected with the cable cabinet door.
Specifically, on the electric primary wiring diagram of the power distribution network, the cable cabinet door is connected to terminals of electric equipment such as a switch and a transformer through wire segments, so that the direct-connected alternating current and direct current connection wire information of the cable cabinet door can be analyzed through analyzing the cable cabinet door graphic elements on the electric primary wiring diagram, and the connection wire information of the cable cabinet door in the interval model of the cable cabinet door is obtained. Here, the connection line information may include an ac connection line and a dc connection line which are directly connected to the cable cabinet door, or may include only an ac connection line which is directly connected to the cable cabinet door or a dc connection line which is directly connected to the cable cabinet door.
Then, generating an equivalent model of the cable cabinet door power equipment; the equivalent model is provided with equipment terminals, and the topological node numbers corresponding to the equipment terminals are set as follows: the connecting wire of the cable cabinet door belongs to a topological node.
In a power distribution network, the cable cabinet door has one terminal, also called an end point, which is an electrical connection point of the conductive device, the terminal being connected at a physical connection point called a connection node, the connection node being a node where the terminals of the conductive device are connected together by zero impedance; therefore, on the basis of the first initial model, an equivalent model of the cable cabinet door power equipment can be generated, the equivalent model is provided with an equipment terminal, and the topological node number corresponding to the terminal is set to be the topological node to which the alternating current and direct current connecting wires directly connected with the cable cabinet door belong.
Then, setting the topological node of the grounding equipment directly connected with the cable cabinet door as the topological node where the cable cabinet door is positioned; the grounding device comprises a grounding knife or a pole lower ground wire on a line segment which is directly connected with the cable cabinet door.
That is, on the basis of the first initial model, the topological nodes of the grounding device of the grounding knife and the under-rod ground wire on the line segment directly connected with the cable cabinet door are arranged as the topological nodes of the cable cabinet door, and meanwhile, the grounding device in the cable cabinet door interval model is arranged with the grounding knife and the under-rod ground wire which have the same topological nodes with the cable cabinet door.
And finally, decomposing the composite equipment in the cable cabinet door interval to construct a linkage disconnecting link object with a virtual terminal.
The combined type equipment in the interval of the cable cabinet door is decomposed into an obviously disconnected equipment disconnecting link and a grounding equipment grounding link, a linkage disconnecting link object with a virtual terminal is constructed, the line segment directly connected with the cable cabinet door can be the grounding link, the under-rod ground wire common grounding equipment, the combined type electric equipment linkage disconnecting link and the three-station switch, the two combined type equipment comprises three equipment terminals and two branches, and one branch is the grounding branch. The differences are: the interlocking knife switch has two states of closing and grounding, and the three-position switch has three states of closing, opening and grounding.
Based on the mode, the cable cabinet door spacing model can be obtained.
The following provides a specific embodiment for constructing a cable cabinet door association interval model.
Generating a second initial model of the cable cabinet door association interval model, and executing the following operations in the second initial model to obtain the cable cabinet door association interval model: analyzing the grounding equipment in the upper-stage switch interval related to the interval where the cable cabinet door is positioned, and setting at least one equipment unit for the grounding equipment in the upper-stage switch interval; constructing a branch object of the equipment in a previous-stage interval of interval association of the cable cabinet door, wherein the cabinet door and the branch object obviously disconnect the equipment, and associating a branch node of the branch object to a cable cabinet door interval model; wherein the composite device in the cable cabinet door association space is broken down into a distinct disconnect device and a ground device.
A cable cabinet door-associated compartment model may be understood as a collection of adjacently-spaced electrical equipment models and electrical connection relationships between the models. The units to which the devices associated at the previous stage belong can be the same or different, and the associated specific device information is obtained according to the topology analysis of the power distribution network.
Here, a second initial model is generated, which includes a switching interval, a bus interval, a transformer interval, and the like. On the basis of the first initial model, the following operations can be performed to obtain a cable cabinet door association interval model:
Firstly, analyzing grounding equipment in a higher-level switch interval related to the interval of a cable cabinet door, and setting at least one equipment unit for the grounding equipment in the higher-level switch interval;
here, the associated upper level switch interval includes a switch, a knife switch, a ground knife, a pole lower ground wire, a chain knife switch and a three-position switch combined type electric device, and if the associated interval device and a cable cabinet door are not in one wiring diagram, different units need to be arranged.
Finally, constructing a cabinet door and a branch object of obviously disconnecting equipment in a previous-stage interval of interval association where the cable cabinet door is located, and associating branch nodes of the branch object to a cable cabinet door interval model; wherein the composite device in the cable cabinet door association space is broken down into a distinct disconnect device and a ground device.
In the electrical wiring diagram, a composite equipment interlocking disconnecting link and a three-position switch in a cable cabinet door association interval are decomposed into obviously disconnecting equipment and grounding equipment, and branch nodes are associated to the cable cabinet door interval. That is, the interlocking knife switch can be decomposed into a distinct breaking device and a grounding device, i.e., into two branches.
Based on the mode, a cable cabinet door association interval model can be obtained.
Through the mode, the cable cabinet door model object is created, the cable cabinet door spacing model is built, the cable cabinet door association spacing model is built, and then the cable cabinet door static model can be obtained after the cable cabinet door locking device is associated, the cable cabinet door static model reflects the electrical connection relation between the cable cabinet door and associated equipment, and the cable cabinet door static model is relatively unchanged under the condition that power grid equipment is not abnormal.
Further, generating a topological node model comprising a cable cabinet door static model according to an electric primary wiring diagram of the power distribution network; the topological node model indicates a power grid topological structure of the power distribution network; the topological node model comprises equipment model objects of equipment in the power distribution network and association relations among the equipment model objects.
In the mode, according to the connection relation information of each electrical device and each electrical device in the electrical primary wiring diagram of the power distribution network, a topological node model comprising a cable cabinet door static model can be uniformly generated, and device model data is displayed in the form of the topological node model. The topological node model indicates a power grid topological structure of a power distribution network and comprises equipment model objects of equipment in the power distribution network and association relations among the equipment model objects, wherein the equipment model objects comprise information such as main resource identifiers of a power system, equipment names, affiliated intervals, terminals, connection nodes, associated locking devices and the like; the relation among the model objects is related through terminals, connecting nodes and topological nodes. The topology node model can be stored locally in the form of XML (Extensible Markup Language ) or can be stored in a database, and is loaded into a memory when in use to generate a power grid model object.
According to the method, a unified electrical equipment modeling method is adopted to generate models of the grid type equipment and the electric power primary equipment, misoperation prevention of the grid type equipment can be managed through a topology misoperation prevention equipment operation locking rule, practicability is enhanced, the method is better applied to engineering sites, and safety and high efficiency of an misoperation prevention switching process are guaranteed.
Further, after the static model of the cable cabinet door is built, topology dynamic modeling can be achieved.
As previously described, the cable cabinet door static model reflects the electrical connection relationship between the cable cabinet door and its associated equipment, which is relatively unchanged without a malfunction of the grid equipment. The cable cabinet door topology dynamic model is a model which is built by combining dynamic attributes such as a real-time state of equipment, a power grid operation mode and the like on the basis of a cable head static model through a depth priority algorithm or a breadth priority algorithm.
In one embodiment, referring to fig. 2, the modeling process of the static model of the cable cabinet door may be implemented in the following manner:
1) Creating a cable cabinet door model object;
electrical devices are classified, including electrical devices such as switches, knife switches, and mesh doors. The cable cabinet door model belongs to the network door type, and the model object comprises a main resource identifier, a name, a description, a locking device ID code and the like of the power system.
2) Constructing a cable cabinet door spacing model;
the interval refers to a set of power system resources and represents physical grouping of modularized equipment, the interval information comprises main equipment of the interval where a cable cabinet door is located, and the interval comprises equipment such as a disconnecting link, a handcart, a ground knife and the like, wherein the equipment type of the main equipment is generally a switch, a bus and a transformer.
3) According to the error-proof logic of the cable cabinet door, defining the subtype of the cable cabinet door as a common cable cabinet door and a transformer inner cabinet door;
the common cable cabinet door error-preventing logic needs to be hung on the ground knife or the ground wire below the rod in the interval, and the transformer cabinet door error-preventing logic needs to meet the requirements that the ground knife in the interval is closed and the ground wire below the rod on two sides of the transformer is hung.
4) Analyzing the cable cabinet door graphic element on the electric primary wiring diagram, and analyzing the direct-connected alternating-current and direct-current connecting wires;
on the electric primary wiring diagram, a cable cabinet door is connected to terminals of electric equipment such as a switch, a transformer and the like through wire segments.
5) Defining an equivalent model of cable cabinet door power equipment, which is provided with an equipment terminal, and setting the topological node number corresponding to the terminal as the topological node to which the AC and DC connecting wires directly connected with the cabinet door belong;
The cable cabinet door has a terminal, also known as an end point, at which is electrically connected the conductive device. Terminals are connected at physical connection points called connection nodes; the connection node is a node where terminals of the conductive devices are connected together by zero impedance.
6) Setting the topological nodes of the grounding knife on the line segment directly connected with the cable cabinet door and the under-rod ground wire grounding equipment as the topological nodes where the cable cabinet door is positioned;
the grounding knife and the grounding wire under the rod which are provided with the same topological node with the cable cabinet door belong to grounding equipment in a cable cabinet door interval model.
7) Decomposing the composite equipment in the cable cabinet door interval into an obviously disconnected equipment disconnecting link and a grounding equipment grounding link, and constructing a linked disconnecting link object with a virtual terminal;
the line segment directly connected with the cable cabinet door can be a ground knife, a common ground device under the rod, a linkage knife switch of a compound electric device and a three-station switch, wherein the two compound devices comprise three device terminals and two branches, and one branch is a ground branch. The differences are: the interlocking knife switch has two states of closing and grounding, and the three-position switch has three states of closing, opening and grounding.
8) Constructing a cable cabinet door association interval model;
The cable cabinet door association spacing comprises a set of adjacent spaced electrical equipment, including switch spacing, bus spacing, transformer spacing, and the like.
9) Analyzing the upper-stage switch interval grounding equipment associated with the interval where the cable cabinet door is positioned, and setting different units;
the related upper-stage switch interval comprises a switch, a disconnecting link, a ground knife, a pole lower ground wire, a chain disconnecting link and a three-station switch composite type electric device, and if the related interval device and a cable cabinet door are not in a wiring diagram, different units are required to be arranged.
10 Constructing a cabinet door of a previous-stage interval related to the interval where the cable cabinet door is positioned, and obviously disconnecting the branch objects of the equipment including the interlocking knife switch;
the combined equipment interlocking knife switch and the three-position switch in the cable cabinet door association interval are decomposed into obvious disconnection equipment and grounding equipment, and branch nodes are associated to the cable cabinet door interval.
11 A five-way locking device is associated;
and a locking device for locking other devices to prevent the other devices from being operated by mistake. The locking devices all have a unique code which can be identified by the computer key. The cable cabinet door may be associated with one or more latches.
12 Generating a topological node model based on a cable cabinet door model;
The topological node model indicates a power grid topological structure of a power distribution network and comprises equipment model objects of equipment in the power distribution network and association relations among the equipment model objects, wherein the equipment model objects comprise information such as main resource identifiers of a power system, equipment names, affiliated intervals, terminals, connection nodes, associated locking devices and the like; the relation among the model objects is related through terminals, connecting nodes and topological nodes. The topology node model can be stored locally in the form of XML (Extensible Markup Language ) or can be stored in a database, and is loaded into a memory when in use to generate a power grid model object.
13 Completing static model construction of the cable cabinet door and starting topology dynamic modeling;
the static model of the cable cabinet door reflects the electric connection relation between the cable cabinet door and associated equipment, and is relatively unchanged under the condition that power grid equipment is not changed. The topology dynamic modeling is a model constructed by combining dynamic attributes such as the real-time state of equipment, the running mode of a power grid and the like on the basis of a static model of a cable head through a depth priority algorithm or a breadth priority algorithm.
14 When the cable cabinet door is prevented from misoperation, topologically searching the spacing equipment to construct a spacing object model;
When the equipment is operated and misjudgment is prevented, the topological node where the cable cabinet door is located is taken as a starting point, and the interval object is constructed.
15 Starting from the topological node of the cable cabinet door, searching the obvious disconnection equipment in all directions according to a depth-first algorithm, and constructing a topological island;
the obviously disconnected equipment comprises a disconnecting link, a handcart, a chain disconnecting link, a three-station switch and the like, and the constructed topological island can change along with the change of the state of the power grid and comprises real-time state information of the equipment.
16 Decomposing the topological island into three topological sub-islands with the same interval, different intervals and different units of the equipment;
according to the anti-misoperation logic requirement, the topological islands of the topological search are classified by the topological nodes where the dummy spare terminals of the cable cabinet door are located, and the topological islands comprise three types of topological sub-islands of the same interval, different intervals of the same unit and different units.
17 Ending the modeling flow;
the misjudgment can be prevented based on the cable cabinet model and the real-time state of the equipment.
In the method, based on the common information model CIM of the power industry standard, a cable cabinet door model and other network door equipment models are established, and a unified and efficient electrical equipment modeling method is provided, so that more comprehensive and efficient topology modeling data are provided for preventing misoperation locking.
In order to ensure that the electrical system can only be opened by a worker, a locking device can be associated in the system model of the power distribution network, which has a unique locking code that can be recognized by a key. After the terminal determines the equipment to be operated and the type of operation to be executed in the operation ticket task, the locking code of the locking device associated with the equipment to be operated in the operation ticket task needs to be checked first to obtain a checking result.
In one mode, the lock code of the locking device associated with the equipment model can be identified by the computer key, and the lock can be unlocked and detected through the corresponding computer key to obtain a verification result. Only after the verification result shows that the lock code is correct, the process of performing misoperation prevention verification based on the equipment model data can be entered.
The equipment types of the equipment to be operated comprise the types of a net door, a switch, a handcart, a disconnecting link, a ground knife, a ground wire and the like based on a cable cabinet door, wherein the equipment types are different, the electrical models are different, and the initial terminals and the topological nodes of the topology search are different, so that the searched topology island is determined according to the equipment type of the equipment to be operated, and then the error operation prevention verification data are obtained.
The following embodiments provide a process of determining that the device type of the device to be operated is a cable cabinet door, and obtaining verification data for preventing misoperation.
Firstly, when misoperation is prevented on a cable cabinet door, topological search is needed to be performed on the spacing equipment of the cable cabinet door from equipment model data, and a spacing object model is built based on search results;
specifically, the topological node where the cable cabinet door is located is taken as a starting point, the spacing equipment of the cable cabinet door is searched in a topological mode, and the spacing object model is built according to the obtained spacing equipment.
Further, virtual terminals of the cable cabinet door are obtained, the virtual terminals of the cable cabinet door are taken as starting points, based on the real-time state of the equipment, the obviously disconnected equipment is searched from the equipment model data, and the area equipment with the obviously disconnected range is obtained; constructing a topological island based on the regional equipment of the obviously disconnected equipment; wherein, the topological island comprises: island state information of a topological island, topological node information in the topological island, electrical equipment information of an interval where a cable cabinet door is located, and electrical equipment information of an associated interval of the interval where the cable cabinet door is located.
The above-mentioned obvious disconnection apparatus includes: a disconnecting link, a handcart switch, a load switch and a three-position switch; the knife switch comprises a common knife switch and a linkage knife switch, wherein the linkage knife switch is a compound electric device, a corresponding model comprises three terminals and two branches, the three terminals of the linkage knife switch model comprise two real device terminals and a dummy spare terminal, one of the two branches comprises two real device terminals, a knife switch branch is formed, and the knife switch branch is an obvious disconnection branch; the other branch includes a dummy spare terminal and a real device terminal, which are ground branches. The real-time state of the equipment of the interlocking knife switch has two kinds: closing and grounding. The three-station switch is a compound switch, the number and the type of terminals, the branch number and the interlocking switch contained in the model are the same, and the difference is that the real-time state of the equipment of the three-station switch has three states: the state of the branch circuit is different when the state of the switch-on, switch-off and grounding is different. The island state information of the topological island includes: charged and grounded states of the topological islands. The above-described spaced electrical equipment information includes: and the main equipment comprises equipment such as a disconnecting link, a handcart, grounding equipment and the like, wherein the main equipment is generally a switch, a bus, a transformer and the like, and the grounding equipment comprises a grounding knife, a ground wire and the like.
That is, a virtual terminal of the cable cabinet door is obtained, a topological node where the virtual terminal is located is taken as a starting point, area equipment with an obvious disconnection range is searched out from equipment model data according to the real-time state of equipment, a topological island is constructed, the topological island indicates equipment information of the cable cabinet door interval and the associated interval, the topological island changes along with the change of the power grid state, the topological island comprises island state information and topological node information of the topological island, and the topological island also comprises electrical equipment information of the interval where the cable cabinet door is located and the interlocking interval of the topological island; wherein the island state information includes a charged or grounded state.
It should be noted that, if the type of operation to be performed is to open the cable cabinet door, the topology sub-island of the topology island decomposition includes: a first topological sub-island reflecting the interval to which the cable cabinet door belongs, a second topological sub-island reflecting the same unit as the cable cabinet door but different intervals, and a third topological sub-island reflecting the different unit from the cable cabinet door; if the type of operation to be performed is closing a cable cabinet door, the topology sub-islands of the topology island decomposition include: and the first topological sub-island reflects the interval of the cable cabinet door.
That is, the type of topological sub-islands of the topological island decomposition is related to the type of operation to be performed by the cable cabinet door. If the type of the operation to be performed is that a cable cabinet door is opened, searching from the equipment model data to obtain a topology island, and decomposing the topology island into 3 types of topology sub-islands, wherein the topology sub-islands are respectively as follows: the cable cabinet door comprises a first topological sub-island reflecting the interval of the cable cabinet door, a second topological sub-island reflecting the same unit as the cable cabinet door but different intervals, and a third topological sub-island reflecting the unit different from the cable cabinet door. If the type of operation to be performed is closing of the cable cabinet door, the topological sub-island decomposed by the topological island is a first topological sub-island reflecting the interval to which the cable cabinet door belongs.
Under the condition, when the type of the operation to be performed is that the cable cabinet door is opened, the process of obtaining the error operation prevention verification data comprises the following steps: analyzing whether grounding equipment exists in the first topological sub-island; if the first topological sub-island is provided with grounding equipment, checking whether the associated equipment of the cable cabinet door is provided with voltage to ground or not, and obtaining misoperation-preventing check data.
The grounding device comprises a grounding knife and a pole lower ground wire. The first topological island indicates information of the interval to which the cable cabinet door equipment to be operated belongs. The related equipment of the cable cabinet door comprises grounding equipment such as a grounding knife, a pole lower ground wire and the like which are directly connected with the cable cabinet door, electrical equipment connected with the cable cabinet door, and grounding equipment in the interval of the electrical equipment such as a switch, a transformer and the like.
That is, when the type of operation to be performed is opening the cable cabinet door, firstly analyzing whether the grounding device exists in the first topological sub-island; if the grounding device exists in the first topological sub-island and is grounded, further, whether the associated device of the cable cabinet door has a voltage to ground is checked, and the checking result is determined to be anti-misoperation check data. The cable cabinet door is characterized in that whether the associated equipment of the cable cabinet door has the voltage to the ground or not can be checked through an electricity checking operation, wherein the electricity checking operation is to check and verify that the information of the cable cabinet door associated equipment contacted by an operator does not have the voltage to the ground, and the electricity checking operation is an important key link for ensuring the equipment to be provided with the grounding safety measure.
It should be noted that if the first topological sub-island does not have the grounding device, judging whether the second topological sub-island and the third topological sub-island have the grounding device in sequence until the topological sub-island with the grounding device is obtained; and checking whether the associated equipment of the cable cabinet door has voltage to ground or not, and obtaining the anti-misoperation check data.
That is, if there is no grounding device in the first topological sub-island, it is firstly determined whether there is a grounding device in the second topological sub-island, if there is a grounding device in the second topological sub-island, it is determined whether the grounding device is grounded, if so, it is not necessary to determine other topological sub-islands, if not, it is continuously determined whether there is a grounding device in the third topological sub-island until a topological sub-island with a grounding device is obtained, and after the grounding device in the topological sub-island is checked to be grounded, it is checked whether there is a voltage to ground in the associated device of the cable cabinet door, and the result is determined as verification data for preventing misoperation.
The following embodiments provide a process of determining that the type of the device to be operated is a cable cabinet door, and obtaining verification data for preventing misoperation when the type of the operation to be performed is that the cable cabinet door is closed.
Specifically, the dismantling state of the high-voltage common ground wire is analyzed in the interval of the cable cabinet door, and the misoperation-preventing check data are obtained.
It can be understood that the power safety operation regulations provide that the cable should be fully discharged phase by phase before being grounded, and the common grounding wire needs to be hung on the cable after the cable cabinet door is opened. Therefore, before the cable cabinet door is closed, the high-voltage common ground wire should be in a dismantling state, and the dismantling state of the high-voltage common ground wire is analyzed in the interval of the cable cabinet door, so that the dismantling state of the high-voltage common ground wire in the interval of the cable cabinet door needs to be analyzed, and the state result is determined as anti-misoperation verification data.
After obtaining the misoperation-preventing check data, the check data also need to be checked based on a preset topological logic to obtain a check result.
Generating a checking result according to the checking data, wherein the checking result is obtained by checking the checking data according to the topology logic preset in the error preventing system, the checking result comprises a pass type and a fail type, and when the checking result indicates that the checking is passed, the equipment to be operated can be unlocked by the terminal so as to execute the operation content on the operation ticket; and when the verification result indicates that the verification is not passed, the equipment to be operated is not unlocked, and the execution of the operation content on the operation ticket is forbidden.
In the mode, based on the cable cabinet model, the equipment connection relation of the power system wiring diagram is perfected, automatic topology logic is realized, and misoperation-preventive locking judgment of the operation of the electrical equipment is realized by combining the real-time state information of the equipment. The method can be applied to power grid scenes such as power distribution website houses and overhead lines, and the like, and an error control flow of safer and more efficient electric switching operation is realized.
In one embodiment, referring to fig. 3, the process of verifying the misoperation prevention of the cable cabinet door according to the topology logic to obtain the verification result may be implemented in the following manner:
1) Starting an intelligent APP;
in this embodiment, the terminal is a smart phone, and the distribution network error-preventing system APP software installed in the smart phone supports the Android, iPhone system.
2) Establishing wireless communication connection with a cloud picture error-preventing server;
the intelligent APP establishes communication connection through the cellular network, the wireless network and the error-proofing server and supports a Bluetooth communication function. Based on a cloud image platform, a cloud, side and end integrated collaborative error proofing system, a cloud image service provides basic image data service, comprises the electrified states and topological connection relations of all distribution network equipment, and provides an error proofing function.
3) Applying for unlocking equipment operation by a switching operation ticket;
the intelligent APP newly establishes a switching operation ticket task, and the cloud picture error-preventing server receives the task of applying for operating equipment.
4) Starting an anti-misoperation analysis service based on a depth-first algorithm;
the structure of the power distribution network is huge and complex, the topology analysis is to consider the whole power distribution network as a topology diagram combining lines and points according to the connection relation of the electrical equipment, and the topology search is carried out according to the depth-first search algorithm according to the connection relation of the electrical equipment, so that the topology logic can be realized, and the misjudgment of the electrical equipment can be realized.
5) Loading a cloud picture equipment model and an equipment real-time state;
the equipment model and the real-time state of the equipment based on the electrical equipment such as the cable cabinet door are the basis of error analysis prevention.
6) Checking whether the lock code of the equipment to be operated is correct or not;
if step 7) is correctly entered, if step 16) is incorrectly entered;
the device model has associated therewith a locking device which has a unique lock code which can be recognized by a computer key.
7) Determining the type of equipment to be operated;
the types of electrical equipment comprise a mesh door based on a cable cabinet door, a switch, a handcart, a disconnecting link, a ground knife, a ground wire and the like, the types of equipment are different, the electrical models are different, the initial terminals and the topological nodes of topology searching are also different, and in the embodiment, the type of equipment to be operated is the cable cabinet door.
8) Judging whether the type of the operation to be performed is a cable cabinet door or not;
9) If the judgment in the step 8) is that the cable cabinet door is opened, the step 10) is carried out, and if the judgment in the step 8) is not that the cable cabinet door is opened, the step 16) is carried out.
10 If the type of the operation to be performed is a cable cabinet door, searching a topological island according to the dummy spare terminal of the cable cabinet door;
and obtaining a dummy spare terminal of the cable cabinet door, searching out area equipment with an obvious disconnection range by taking a topological node where the dummy spare terminal is located as a starting point, and constructing a topological island, wherein the topological island comprises island state and topological node information of the topological island and also comprises electrical equipment information of an interval where the cable cabinet door is located and an interlocking interval of the cable cabinet door.
11 Analyzing the presence of a grounded device): judging the 'grounding' criteria according to the priority order of three topological sub-islands based on the cable cabinet model;
the "present ground" criterion is by the type of device specified: the electric circuit is grounded by the ground knife and the under-rod ground wire, and the searched topological island is also in a grounding state. And starting to search out a global topological island according to the topological node of the virtual standby terminal of the cable cabinet door, wherein the global topological island comprises equipment information of the cable cabinet door interval and the associated interval.
Dividing the global topological island into 3 topological sub-islands: the method comprises the steps of reflecting topological subislands 1 of intervals to which cable cabinet door equipment currently operated belongs, reflecting topological subislands 2 of different intervals of the same unit and reflecting topological subislands 3 of different units. Judging that the priority of the topological sub-island with the ground is from high to low: topological subisland 1> topological subisland 2> topological subisland 3, namely the principle of nearby grounding. Of course, when the ground knife is pulled away and the ground wire under the rod is removed, the cable cabinet door associated with the topological sub-island also needs to be considered.
12 Judging whether the interval is grounded by a grounding knife and a grounding wire under the rod;
13 If the ground wire under the ground knife and the rod is judged to be grounded, the step 15) is carried out, and if the ground wire under the ground knife and the rod is judged not to be grounded, the step 14) is carried out.
Firstly judging the topological sub-island 1, and if the interval is grounded, judging other topological sub-islands is not needed if the interval is grounded.
14 Analyzing the first-level grounding information on the side of the cabinet door, which is separated from the incoming line;
the cable cabinet door interval does not meet the existing grounding criterion, the topological sub-island with low priority needs to be judged, and after a certain topological sub-island meets the existing grounding criterion, the judgment of the topological sub-island with low priority at the upper level is stopped.
15 Judging the cable cabinet door electricity checking operation to obtain checking data, and entering the step 17);
the electricity checking operation is to check and verify that the information of the cable cabinet door related equipment contacted by an operator has no voltage to the ground, and is an important key link for ensuring the equipment to be provided with grounding safety measures.
16 Closing the cable cabinet door, analyzing the interval of the cable cabinet door, and removing the high-voltage common ground wire;
in the power safety working regulations, the cable should be fully discharged phase by phase before being grounded, so that the common ground wire needs to be hung on the cable after the cable cabinet door is opened.
17 Generating a verification result based on the verification data.
And checking the check data according to a preset topology logic to obtain a check result.
In the mode, the intelligent control flow linked with the mobile terminal can be flexibly customized, misoperation-preventive locking judgment of network gate type equipment operation is automatically realized by using the topology logic, the heavy workload for writing misoperation-preventive logic conditions of the equipment is greatly reduced, the accuracy and the integrity of the equipment operation are improved, and misoperation prevention convenience and intellectualization are realized.
The topology logic realizes error-proof logic, has obvious advantages, and compares and analyzes the advantages of the topology logic based on the network gates such as cable cabinet doors and the like relative to the handwriting logic formula as shown in the table 1.
TABLE 1
The following embodiments provide a process of obtaining verification data for preventing misoperation when determining that the device type of the device to be operated is a significantly disconnected device and the type of the operation to be performed is a closed operation.
Specifically, the type of the equipment to be operated in the operation ticket task also comprises obviously disconnecting the equipment, and the type of the operation to be executed in the operation ticket task is a combined operation; searching on two sides of the device which is obviously disconnected on the basis of the real-time state of the device to obtain a plurality of topological islands; or if the attribute of the obviously disconnected equipment is a disconnecting link, searching by taking two terminals of a disconnecting link branch as starting points based on the real-time state of the equipment, so as to obtain a plurality of topological islands.
The obvious disconnection device comprises a disconnecting link and a handcart device; correspondingly, the obvious disconnection device is operated by closing the disconnecting link and pushing the handcart to the running position.
In actual implementation, according to the real-time state of the obviously disconnected equipment, searching is respectively carried out on two sides of the obviously disconnected equipment to obtain a plurality of topological islands, or if the attribute of the obviously disconnected equipment is a disconnecting link, searching is respectively carried out by taking two terminals with the attribute of the disconnecting link branch as starting points, and two topological islands are constructed, wherein the topological islands comprise cable cabinet doors and grounding equipment.
Further, the equipment to be operated in the operation ticket task also comprises obviously disconnected equipment, and the type of operation to be executed in the operation ticket task is a combined operation; analyzing the switch state of an interval model of obviously disconnected equipment; analyzing the grounding state of the grounding device in a plurality of topological islands corresponding to the obviously disconnected device; and analyzing the states of the cable cabinet doors on the two sides of the obviously disconnected equipment to obtain the misoperation-preventing check data.
Here, the analysis result is determined as error-proof verification data according to the actual situation of the topology island.
Under normal conditions, before the disconnecting link and the handcart are closed, a main equipment switch in an interval needs to be disconnected to prevent the disconnecting link or the handcart from being pulled and closed under load, prevent the occurrence of arc and arc short circuit, and ensure the safety of switching operators and equipment. When the disconnecting link and the handcart are subjected to the switching-on operation, a plurality of topological island grounding devices corresponding to the devices are obviously disconnected, and grounding cannot exist, namely, the grounding knife is pulled open, and the ground wire is removed, wherein the ground wire comprises all types of ground wires: common ground wire, pole ground wire. In addition, it is also necessary to open the cable doors on both sides of the device in a substantially closed state.
In one embodiment, referring to fig. 4, the process of verifying the anti-misoperation of the obviously disconnected device according to the topology logic to obtain the verification data may be implemented in the following manner:
1) Starting an intelligent APP;
in this embodiment, the terminal is a smart phone, and the distribution network error-preventing system APP software installed in the smart phone supports the Android, iPhone system.
2) Establishing wireless communication connection with a cloud picture error-preventing server;
the intelligent APP establishes communication connection through the cellular network, the wireless network and the error-proofing server and supports a Bluetooth communication function. Based on a cloud image platform, a cloud, side and end integrated collaborative error proofing system, a cloud image service provides basic image data service, comprises the electrified states and topological connection relations of all distribution network equipment, and provides an error proofing function.
3) Applying for unlocking equipment operation by a switching operation ticket;
the intelligent APP newly establishes a switching operation ticket task, and the cloud picture error-preventing server receives the task of applying for operating equipment.
4) Starting an anti-misoperation analysis service based on a depth-first algorithm;
the structure of the power distribution network is huge and complex, the topology analysis is to consider the whole power distribution network as a topology diagram combining lines and points according to the connection relation of the electrical equipment, and the topology search is carried out according to the depth-first search algorithm according to the connection relation of the electrical equipment, so that the topology logic can be realized, and the misjudgment of the electrical equipment can be realized.
5) Loading a cloud picture equipment model and an equipment real-time state;
the equipment model and the real-time state of the equipment based on the electrical equipment such as the cable cabinet door are the basis of error analysis prevention.
6) Checking the lock codes of electrical equipment such as cable cabinet doors and the like; if step 7) is correctly entered, if step 15) is incorrectly entered;
the device model has associated therewith a locking device which has a unique lock code which can be recognized by a computer key.
7) Determining the type of equipment to be operated;
the electrical equipment comprises a net door, a switch, a handcart, a disconnecting link, a ground knife, a ground wire and the like based on a cable cabinet door, the equipment types are different, the electrical models are different, and the initial terminals and the topological nodes of the topology search are also different; in this embodiment, the device to be operated is a disconnecting link, a handcart, or the like.
8) Judging that the disconnecting link, the handcart and the like obviously disconnect the equipment;
the interlocking knife switch and the three-station switch are multi-branch composite equipment, and when the equipment is operated, the type of the operating equipment is decomposed to form the equipment which is obviously disconnected.
9) Analyzing the switching state of the interval model;
when the disconnecting link and the handcart are operated, the main equipment switch in the interval is required to be disconnected, so that the on-load pulling-in of the disconnecting switch or the handcart is prevented, the occurrence of arc and arc short circuit is prevented, and the safety of switching operators and equipment is ensured.
In addition, the operation sequence of the disconnecting link needs to be considered, when the disconnecting link is closed, the bus side disconnecting link is closed preferentially, and when the disconnecting link is opened, the line side is separated preferentially.
10 Whether or not to be a synthetic operation;
the obvious equipment closing opening and closing operation comprises that a knife switch is closed and a handcart is pushed to an operating position.
11 If step 10) judges that the operation is the combined operation, step 12) is carried out, and if the operation is not the combined operation, step 14) is carried out.
12 2 topological islands are constructed for 2 terminals of the disconnecting link branch according to the two sides or the attribute of the equipment, and the topological islands comprise cable cabinet doors and grounding equipment;
according to 2 equipment terminals of equipment serving as a disconnecting link in the equipment branch model, 2 topological islands are searched, the situation that the grounding cannot exist is required to be judged, namely, a grounding knife is pulled open, a ground wire is removed, and the cable cabinet door is required to be closed is also required to be judged.
13 Analyzing the states of the earth knife and the ground wire in the obvious disconnection range;
the ground blade needs to be pulled apart and the ground wire needs to be removed, wherein the ground wire comprises all types of ground wires: common ground wire, pole ground wire.
14 Analyzing the states of the cable cabinet doors at two sides.
15 Generating a verification result based on the verification data.
And checking the check data according to a preset topology logic to obtain a check result.
The following embodiments provide a process of determining a device type of a device to be operated as a ground device to obtain verification data for preventing misoperation.
Specifically, the type of equipment to be operated in the operation ticket task further comprises grounding equipment; if the type of the operation to be executed of the grounding device is a combined operation, taking a topological node of the grounding device as a starting point, and searching based on the real-time state of the device to obtain a topological island; if the type of the operation to be performed of the grounding device is not the combined operation, and the type of the operation to be performed is that the grounding knife is pulled or the ground wire under the rod is removed, the topological node where the device terminal of the grounding device is located is taken as the starting point, or the topological node where the branch terminal of the grounding device is located is taken as the starting point, and a plurality of topological islands are obtained based on the real-time state search of the device.
The topological islands comprise interval topological sub-islands, interval topological sub-islands with the same unit and different units and topological sub-islands with different units.
In actual implementation, if the type of operation to be executed of the grounding device is a combined operation, searching a obviously disconnected topological island by using one topological node of the grounding knife and the ground wire, and searching according to the real-time state of the device to obtain the topological island. If the type of the operation to be performed of the grounding device is not the combined operation and the type of the operation to be performed is that the grounding knife is pulled or the ground wire under the rod is removed, the topological node where the device terminal of the grounding device is located can be taken as a starting point, or the topological node where the branch terminal of the grounding device is located can be taken as a starting point, and a plurality of topological islands can be obtained according to the real-time state search of the device.
In one mode, the equipment to be operated in the operation ticket task further comprises grounding equipment; the type of operation to be executed in the operation ticket task is a combined operation; analyzing whether obvious disconnection equipment exists on two sides of a circuit of the grounding equipment in the topological island; and checking whether the grounding equipment has voltage to ground or not, and obtaining the anti-misoperation check data.
The contact electroscope or the test pencil with corresponding voltage level can be used for respectively testing electricity phase by phase at the position where the grounding wire or the grounding disconnecting link is arranged, whether the grounding equipment has the voltage to the ground or not is checked, and the checking result is determined to be anti-misoperation checking data.
Normally, if the type of operation to be performed by the grounding device is a combined operation, there should be a significant disconnection device on both sides of the line of the grounding device within the topological island, and no voltage to ground exists at the grounding device.
In another mode, the equipment to be operated in the operation ticket task further comprises grounding equipment; the type of operation to be executed in the operation ticket task is that the ground knife is pulled open or the ground wire under the rod is removed; it is also necessary to analyze whether the cable doors within the present compartment of the grounding device are closed; analyzing whether a ground knife or a pole lower ground wire exists in a plurality of topological islands corresponding to the grounding equipment; if a ground knife or a pole ground wire exists, whether a cable cabinet door in the topological island is closed or not is analyzed, and misoperation-preventing check data are obtained.
Under normal conditions, if the type of operation to be performed is that the ground knife is pulled open or the ground wire under the rod is removed, the cable cabinet door in the interval of the grounding device needs to be closed, when topological sub-islands of different intervals and different units of the same unit are judged, whether the ground knife and the ground wire under the rod exist or not is judged first, and if the topological sub-islands do not exist, the topological sub-islands do not need to be judged continuously.
And analyzing whether ground knives or under-rod ground wires exist in a plurality of topological islands corresponding to the grounding equipment, wherein the interval topological islands, the interval topological islands of the same unit and the interval topological islands of the different units are needed to be judged, and the reason is that when the power failure overhauls, when a cable cabinet door is opened, the interval of the cable cabinet door possibly does not have the grounding equipment, and 3 kinds of topological islands related to the grounding error prevention rule exist. Further, if a ground knife or a pole ground wire exists, whether a cable cabinet door in the topological island is closed or not is analyzed, and misoperation-preventing check data are obtained.
In one embodiment, referring to fig. 5, the process of verifying the anti-misoperation of the grounding device according to the topology logic to obtain the verification result may be implemented in the following manner:
1) Starting an intelligent APP;
in this embodiment, the terminal is a smart phone, and the distribution network error-preventing system APP software installed in the smart phone supports the Android, iPhone system.
2) Establishing wireless communication connection with a cloud picture error-preventing server;
the intelligent APP establishes communication connection through the cellular network, the wireless network and the error-proofing server and supports a Bluetooth communication function. Based on a cloud image platform, a cloud, side and end integrated collaborative error proofing system, a cloud image service provides basic image data service, comprises the electrified states and topological connection relations of all distribution network equipment, and provides an error proofing function.
3) Applying for unlocking equipment operation by a switching operation ticket;
the intelligent APP newly establishes a switching operation ticket task, and the cloud picture error-preventing server receives the task of applying for operating equipment.
4) Starting an anti-misoperation analysis service based on a depth-first algorithm;
the structure of the power distribution network is huge and complex, the topology analysis is to consider the whole power distribution network as a topology diagram combining lines and points according to the connection relation of the electrical equipment, and the topology search is carried out according to the depth-first search algorithm according to the connection relation of the electrical equipment, so that the topology logic can be realized, and the misjudgment of the electrical equipment can be realized.
5) Loading a cloud picture equipment model and an equipment real-time state;
the equipment model and the real-time state of the equipment based on the electrical equipment such as the cable cabinet door are the basis of error analysis prevention.
6) Checking the lock codes of electrical equipment such as cable cabinet doors and the like; if step 7) is correctly entered, if step 17) is incorrectly entered;
the device model has associated therewith a locking device which has a unique lock code which can be recognized by a computer key.
7) Determining the type of equipment to be operated;
the types of the electrical equipment comprise a net door based on a cable cabinet door, a switch, a handcart, a disconnecting link, a ground knife, a ground wire and the like, the types of the equipment are different, the electrical models are different, the initial terminals and the topological nodes of the topology search are also different, and in the embodiment, the types of the equipment to be operated are the ground equipment such as the ground knife, the pole ground wire and the like.
8) The equipment type is a grounding type, and the grounding equipment is judged;
9) Whether or not it is a synthetic operation;
the ground wire comprises a common ground wire and a pole lower ground wire.
10 If the operation is the closing operation, such as closing a ground knife and hanging a ground wire, the step 11) is carried out, and if the operation is not the closing operation, the step 13) is carried out.
11 Analyzing the apparent disconnection devices at both sides of the line;
a topological node of the ground knife and the ground wire is used for searching an obviously disconnected topological island, complex combined equipment is encountered during searching, a knife switch and a three-position switch are interlocked, and the corresponding knife switch branch can also meet the condition of stopping searching and serve as the analysis of the obviously disconnected equipment.
12 Judging that the electricity inspection operation is completed;
before the distribution network line and equipment are subjected to power failure maintenance and grounded, a contact electroscope or a test pencil with corresponding voltage level is used for carrying out phase-by-phase electricity inspection at a position where a grounding wire or a grounding disconnecting link is arranged. The electric safety accidents caused by the fact that the ground wire is hung and the ground knife is closed in a charged mode and the five-prevention safety rule is violated are prevented.
13 Judging whether the ground wire is pulled away or the ground wire under the rod is dismantled;
14 If step 13) judges that the ground knife is pulled or the ground wire under the rod is removed, step 15) is carried out, and if step 17) is not carried out.
15 According to the topological node where the grounding equipment terminal or the branch terminal is located, 3 topological islands are obtained;
the 3 topological islands are interval topological islands, interval topological islands with the same unit and different units, and topological islands with different units; the 3 topological islands are used for judging the states of the cable cabinet doors related to the ground knives and the under-rod ground wires. The topology island has 3 types, the construction mode is the same as the analysis mode when judging that the cable cabinet door is grounded, but the judgment modes are different. At this time, 3 topological sub-islands all need to be judged, because when the power failure overhauls, when a cable cabinet door is opened, the interval of the cable cabinet door possibly does not have grounding equipment, and 3 topological islands which are related with the grounding error prevention rule exist.
16 Analyzing the state of the cable cabinet door of the topological island.
Judging principle: when judging that the cable cabinet door with the interval needs to be closed and the topological sub-islands of the same unit with different intervals and different units are judged, judging whether a ground knife and a pole are grounded or not, and if so, judging that the topological sub-islands are not needed to be continued.
17 Generating a verification result based on the verification data.
And checking the check data according to a preset topology logic to obtain a check result.
The following embodiment provides a process of determining that the device type of the device to be operated is a normal switch, and obtaining a verification result of preventing misoperation.
The equipment to be operated in the operation ticket task further comprises a common switch, if the type of operation to be performed in the operation ticket task is switch operation, whether a power supply is grounded or not is analyzed, whether the states of the disconnecting link at two sides of the common switch are consistent or not is analyzed, and misoperation-preventing check data are obtained; if the operation type to be executed in the operation ticket task is loop closing operation or loop opening operation, analyzing the load state, the circuit voltage fluctuation state and the states of the relay protection device and the safety automatic device of equipment in a circuit where the common switch is positioned after the operation type to be executed is executed, and obtaining the error operation prevention verification data.
Under normal conditions, for the switch operation, the states of the knife switches at the two sides of the switch are required to be kept consistent, so that the ring closing and ring opening operation is required to be prompted; the ring closing and ring opening are still operated in the same system in most cases, and one system is regulated to be in ring network operation or separated from the ring opening point according to the inherent position of electricity. The ring opening and closing operation must ensure that the power flow does not exceed the stability limit after the ring opening and closing, the overload and the voltage of the equipment are within the normal range, and the relay protection and the misoperation of the safety automatic device are not caused.
In one embodiment, referring to fig. 6, the process of verifying the anti-misoperation of the common switching device according to the topology logic to obtain the verification result may be implemented in the following manner:
1) Starting an intelligent APP;
in this embodiment, the terminal is a smart phone, and the distribution network error-preventing system APP software installed in the smart phone supports the Android, iPhone system.
2) Establishing wireless communication connection with a cloud picture error-preventing server;
the intelligent APP establishes communication connection through the cellular network, the wireless network and the error-proofing server and supports a Bluetooth communication function. Based on a cloud image platform, a cloud, side and end integrated collaborative error proofing system, a cloud image service provides basic image data service, comprises the electrified states and topological connection relations of all distribution network equipment, and provides an error proofing function.
3) Applying for unlocking equipment operation by a switching operation ticket;
the intelligent APP newly establishes a switching operation ticket task, and the cloud picture error-preventing server receives the task of applying for operating equipment.
4) Starting an anti-misanalysis service based on a depth-first algorithm
The structure of the power distribution network is huge and complex, the topology analysis is to consider the whole power distribution network as a topology diagram combining lines and points according to the connection relation of the electrical equipment, and the topology search is carried out according to the depth-first search algorithm according to the connection relation of the electrical equipment, so that the topology logic can be realized, and the misjudgment of the electrical equipment can be realized.
5) Loading a cloud picture equipment model and an equipment real-time state;
the equipment model and the real-time state of the equipment based on the electrical equipment such as the cable cabinet door are the basis of error analysis prevention.
6) Checking the lock codes of electrical equipment such as cable cabinet doors and the like; if the step 7) is correctly entered, if the step 9 is incorrectly entered;
the device model has associated therewith a locking device which has a unique lock code which can be recognized by a computer key.
7) Determining the type of equipment to be operated;
the types of the electrical equipment comprise a mesh door based on a cable cabinet door, a switch, a handcart, a disconnecting link, a ground knife, a ground wire and the like, the types of the equipment are different, the electrical models are different, the initial terminals and the topological nodes of the topology search are also different, and in the embodiment, the type of the equipment to be operated is common switch equipment.
8) The equipment type is a common switch, the switch type equipment is analyzed, the consistency of the states of the power supply grounding and interval disconnecting link, the loop closing and loop opening criteria are judged, and the step 9) is carried out.
The switch operation needs to keep the states of the knife switches at the two sides consistent, so that the ring closing and ring opening operation needs to be prompted. The ring closing and ring opening are still operated in the same system in most cases, and one system is adjusted to be in ring network operation or separated from the ring opening point according to the inherent position of electricity. The ring opening and closing operation must ensure that the power flow does not exceed the stability limit after the ring opening and closing, the overload and the voltage of the equipment are within the normal range, and the relay protection and the misoperation of the safety automatic device are not caused. The loop closing and loop opening points are switch type equipment.
When the electrical interval is switched to the running state, the on-off operation cannot cause the power supply to be grounded.
9) And generating a verification result based on the verification data.
And checking the check data according to a preset topology logic to obtain a check result.
Under the mode, the equipment operation locking rule based on topology error prevention guarantees the comprehensiveness, accuracy and high efficiency of the error prevention rule, and has self-adaptability to a power grid model, so that the safety guarantee level of electric operators is improved, and the working efficiency of the operators is also improved.
After the verification data generates the verification result, the comprehensive anti-misoperation decision stage of the anti-misoperation system is entered, and in the stage, a final decision is made as to whether the task content of the operation ticket can be executed.
In this process, the verification data needs to be verified based on a preset topology logic. The topology logic is an error prevention system for automatically generating logic rule judgment according to the equipment connection relation and the real-time state information of the power system wiring diagram. In the embodiment, based on the error prevention system, basic graph data service is provided by using cloud image service through the power distribution network electrical wiring diagram stored in the cloud of the error prevention system, the electrified state and the topological connection relation of equipment in all power distribution networks are obtained, the topological logic can be automatically generated according to the topological connection relation and the real-time state information of the equipment, and the verification data is verified to obtain a generated verification result.
Further, if the verification result indicates that verification is passed, generating a signal for allowing unlocking of the equipment to be operated so as to unlock the equipment to be operated through the unlocking device; and acquiring operation records and equipment state real-time information of equipment to be operated, and updating the state of the equipment to be operated in the electric primary wiring diagram based on the equipment state real-time information.
The signal may be a signal of a connection type such as bluetooth or wireless.
In one embodiment, a flow of the topology anti-misoperation system in the comprehensive anti-misoperation decision stage is provided, as shown in fig. 7, specifically:
1) Generating a verification result according to the topology logic;
2) Judging that the error proofing passes, if the error proofing passes, entering the step 3), otherwise, entering the step 7).
3) The intelligent APP and the unlocking device establish Bluetooth communication;
the intelligent APP and the unlocking device running in the mobile phone establish Bluetooth communication;
4) Unlocking the unlocking device;
the anti-misoperation passes, unlocking equipment is allowed, an operator holds the intelligent APP and the unlocking device, the unlocking device detects a lockset lock code installed on the electrical equipment, and unlocking operation is carried out on the corresponding electrical equipment.
5) The equipment operation record is returned;
the intelligent APP uploads the real-time information of the equipment state to the cloud picture distribution network anti-misoperation server in a network mode.
6) Updating the state of the cloud picture anti-misoperation service updating equipment and updating the graphic display;
the equipment corresponding to the electric primary wiring diagram displays state update and releases the locking state.
7) Operation and alarm prompts are disabled.
The error proofing passes through, the operation equipment is not allowed, and the reason prompt information of prohibiting the operation and preventing the error passing through is given.
The distribution network misoperation-preventive safety control flow realizes forced misoperation-preventive locking of the ground knife and the cable cabinet door equipment for the operation of the electric primary equipment, and realizes forced electricity inspection locking before the operation of the ground knife and the cable cabinet door equipment, thereby avoiding the loss of the power grid caused by misoperation due to human factors, and particularly preventing personal injury of operators.
In the mode, in the operation process, the intelligent APP controls unlocking and locking operations of the field operation control device through matching with the unlocking device, so that the equipment operation sequence and the operation content in the operation process are ensured to meet the requirements of operation safety control related regulations, and misoperation behaviors are prevented. After the operation task is finished, the task execution result is transmitted back to the system cloud server through a wireless network or a local transmission channel and is stored as historical data.
In one mode, the error prevention system not only can be verified according to the topology logic, but also has the image intelligent analysis capability, namely the edge gateway intelligent analysis service, and can effectively monitor and protect the operation scene through the image intelligent analysis.
Specifically, a video stream related to equipment to be operated is acquired; the video stream comprises video information of associated equipment of equipment to be operated or video information of equipment in an interval of the equipment to be operated; decoding the video stream to obtain a picture stream corresponding to the video stream; based on a preset neural network reasoning model, analyzing the picture stream in a specified analysis type to obtain an analysis result; the designated analysis type comprises area intrusion analysis, knife switch analysis, worker dressing specification analysis or equipment associated device analysis.
The graphics stream may be in YUV or BGR format; the neural network reasoning model can be NNIE (Neural Network Inference Engine, neural network reasoning machine), and is a hardware unit for performing acceleration processing specially aiming at the neural network, in particular to the deep learning convolutional neural network.
That is, the video information such as the knife switch, the cable cabinet door and the like in the equipment association equipment to be operated or the interval of the equipment to be operated is obtained, the video streaming solution protocol reflecting the electrical equipment and the interval information is decoded into YUV or BGR format, and the analysis types such as area invasion analysis, knife switch analysis, worker dressing specification analysis, equipment association device analysis and the like can be performed on the picture stream by utilizing the preset neural network reasoning model, so that the analysis result is obtained.
In particular, the process of analysis using neural network inference models can be referred to as follows:
based on a preset neural network reasoning model, carrying out regional intrusion analysis on the picture stream to obtain a first analysis result; the first analysis result indicates: whether to mistakenly enter a charging interval; carrying out knife switch analysis on the picture stream based on a preset neural network reasoning model to obtain a second analysis result; in the process of knife switch analysis, a neural network reasoning model identifies a knife switch arm of a knife switch in a picture stream, and determines the equipment state of the knife switch based on the state of the knife switch arm; the second analysis result includes a device state of the knife switch; based on a preset neural network reasoning model, carrying out worker dressing standard analysis on the picture stream to obtain a third analysis result; the third analysis result indicates: whether the worker wears the safety helmet and/or whether the worker wears the work clothes; based on a preset neural network reasoning model, analyzing a device associated with the picture stream by using equipment to obtain a fourth analysis result; the fourth analysis result indicates: indicator light status associated with the device.
That is, through a preset neural network reasoning model, carrying out area intrusion analysis on the picture stream, analyzing the mistakenly-charged interval information, and timely pushing alarm information; carrying out knife switch analysis on the picture stream through a preset neural network reasoning model, analyzing the state of a knife switch arm, and determining the equipment state of the knife switch; the picture flow is subjected to worker dressing standard analysis through a preset neural network reasoning model, dressing standard information of electric workers is detected, whether the workers wear safety helmets or not and whether working clothes are worn or not can be obtained, and only information whether the workers wear the safety helmets or not or whether the workers wear the working clothes or not can be obtained; and analyzing the device associated with the picture stream by a preset neural network reasoning model to obtain the state analysis of the indicator light so as to indirectly acquire the state of the equipment.
The intelligent image analysis capability of the error prevention system, namely the intelligent edge gateway analysis service, can start the intelligent edge gateway analysis service after the operation ticket is acquired, and is combined with the topology logic error prevention process to perform intelligent comprehensive error prevention and provide more comprehensive error prevention management and control. In one embodiment, as shown in FIG. 8, this is accomplished by:
1) Starting an intelligent APP;
in this embodiment, the terminal is a smart phone, and the distribution network error-preventing system APP software installed in the smart phone supports the Android, iPhone system.
2) Establishing wireless communication connection with a cloud picture error-preventing server;
the intelligent APP establishes communication connection through the cellular network, the wireless network and the error-proofing server and supports a Bluetooth communication function. Based on a cloud image platform, a cloud, side and end integrated collaborative error proofing system, a cloud image service provides basic image data service, comprises the electrified states and topological connection relations of all distribution network equipment, and provides an error proofing function.
3) Applying for an unlocking equipment operation request by a switching operation ticket;
the intelligent APP newly establishes a switching operation ticket task, and the cloud picture error-preventing server receives the task of applying for operating equipment.
4) Starting an intelligent analysis service of the edge gateway;
when the switching operation ticket equipment unlocks the operation request, not only the anti-misoperation analysis service is started, but also the intelligent analysis service of the edge gateway is started. The edge gateway is an intelligent Internet of things gateway, is also called an intelligent video cloud node, supports access of various sensor devices such as humiture, air conditioner and UPS, supports local large-capacity data storage, and has a strong network protocol.
5) Acquiring operation equipment associated equipment and interval video streams;
and acquiring video streams such as a disconnecting link, a cable cabinet door and the like at intervals according to video information related to the operation equipment.
6) A device, interval video stream decoding;
and decoding a video stream solution protocol reflecting the electrical equipment and the interval information into YUV or BGR format to obtain a picture stream.
7) Converting the picture stream;
and converting the data into data processed by the intelligent cloud nodes, and providing the data for a neural network inference engine for analysis.
8) Analyzing by an intelligent cloud node NNIE neural network inference engine;
NNIE (Neural Network Inference Engine) it is a hardware unit in the haisi media SoC for accelerating the processing of the neural network, especially the deep learning convolutional neural network. The special NNIE can integrate the identification network which consumes huge resources on the PC to the chip, so that the product has low power consumption.
9) Intelligent analysis type;
and the intelligent cloud node NNIE neural network inference engine analyzes, and performs intelligent analysis of different types according to the operation equipment and the interval type.
10 If the step 9 is the intelligent analysis of area invasion, the step 11) is entered, if the step 12) is entered, the step 13) is entered, if the step is the normal analysis of dressing of switching operators, the step 14) is entered, and if the step is the intelligent analysis of devices associated with equipment.
11 Analyzing the misentering electrification interval information;
and analyzing the mistaken-entering electrified interval information and pushing alarm information timely.
12 Identifying two knife switch arms of the knife switch by adopting a target detection method;
the edge gateway analyzes the state of the knife switch arm and determines the equipment state of the knife switch.
13 The detection of the wearing of the safety helmet and the detection of the working clothes;
and detecting dressing specification information of the electric operator.
14 Indicator light status analysis;
and (5) indicating lamp state analysis, and indirectly acquiring the state of the equipment.
15 The intelligent analysis result is sent to the cloud platform and pushed to the intelligent APP.
According to the cloud edge intelligent analysis service system, cloud edge intelligent analysis service is combined with the framework of the cloud edge, global performance of cloud computing, business decision advantages and edge computing capacity of the edge gateway are combined in real time, and a cloud edge cooperation-based safe, efficient and intelligent error prevention management and control flow is achieved.
It should be noted that, the error prevention system can also combine the results of the topology logic and the image intelligent analysis to perform intelligent comprehensive error prevention, and provide a more comprehensive error prevention management and control flow.
Specifically, a verification result is generated based on the analysis result and the verification data for preventing the erroneous operation.
That is, the verification data for preventing misoperation based on the topology logic and the analysis result obtained through the intelligent edge gateway analysis service are combined with each other to obtain the verification result.
Illustratively, a process of obtaining a verification result and performing anti-misoperation based on the verification result is shown in fig. 9:
1) The analysis result obtained through the intelligent edge gateway analysis service is sent to the cloud platform and pushed to the intelligent APP;
2) Generating a verification result based on the analysis result and the verification data for preventing misoperation;
and the cloud performs large-scale power grid data processing according to the topology logic and the intelligent analysis result in the distribution network anti-misoperation safety control flow, and intelligent comprehensive anti-misoperation decision is performed. The cloud edge end cooperative error-prevention safety control flow based on the cloud image improves the error-prevention global property, accuracy and safety, particularly improves the accuracy of error-prevention rules of preventing live hanging (closing) of a grounding wire (grounding disconnecting link), preventing the live wire (grounding disconnecting link) from transmitting electricity (closing a disconnecting switch), and preventing the live interval from being mistakenly entered, and ensures the safety of power grid operators.
3) If the error-proof verification is judged to pass, the step 4 is entered, otherwise, the step 8) is entered.
4) The intelligent APP and the unlocking device running in the mobile phone establish Bluetooth communication;
5) Unlocking the unlocking device;
the anti-misoperation passes, unlocking equipment is allowed, an operator holds the intelligent APP and the unlocking device, the unlocking device detects a lockset lock code installed on the electrical equipment, and unlocking operation is carried out on the corresponding electrical equipment.
6) The equipment operation record is returned;
the intelligent APP uploads the real-time information of the equipment state to the cloud picture distribution network anti-misoperation server in a network mode.
7) Updating the state of the cloud picture anti-misoperation service updating equipment and updating the graphic display;
the equipment corresponding to the electric primary wiring diagram displays state update and releases the locking state.
8) Operation and alarm prompts are disabled.
The error proofing passes through, the operation equipment is not allowed, and the reason prompt information of prohibiting the operation and preventing the error passing through is given.
The distribution network misoperation-preventive safety control flow realizes forced misoperation-preventive locking of the ground knife and the cable cabinet door equipment for the operation of the electric primary equipment, and realizes forced electricity inspection locking before the operation of the ground knife and the cable cabinet door equipment, thereby avoiding the loss of the power grid caused by misoperation due to human factors, and particularly preventing personal injury of operators.
9) Ending the whole operation flow.
Based on the cloud picture platform, the system basic data and services of the distribution network anti-misoperation system are established, a cable cabinet door and electric primary equipment model is established, electronic management of an electric switching operation ticket is used, effective monitoring and protection are implemented on the related operation flow and operation scene, and the safety guarantee level of operators is comprehensively improved.
Corresponding to the above method embodiment, referring to fig. 10, a schematic structural diagram of a power distribution network anti-misoperation verification device based on a cable cabinet door model is shown, where the device includes:
the first loading module 1001 is configured to acquire an operation ticket task, and load equipment model data and an equipment real-time state of the power distribution network; the operation ticket task comprises a device type to be operated and an operation type to be executed; the equipment model data comprises a cable cabinet door static model, wherein the cable cabinet door static model indicates: the electric connection relation between the cable cabinet door and the associated equipment of the cable cabinet door in the power distribution network;
the first search module 1002 is configured to search for a topology island from the device model data based on a real-time device state of the cable cabinet door if the type of the device to be operated is the cable cabinet door;
a first decomposition module 1003, configured to decompose the topology island into topology subislands including at least one of the following according to a type of operation to be performed: a first topological sub-island reflecting the interval to which the cable cabinet door belongs, a second topological sub-island reflecting the same unit as the cable cabinet door but different intervals, and a third topological sub-island reflecting the different unit from the cable cabinet door;
the first determining module 1004 is configured to sequentially determine, according to a preset priority order, whether the topology subislands in the topology island have grounding devices until a target topology subisland with the grounding devices is obtained, and obtain anti-misoperation verification data according to a real-time state of devices in the target topology subisland and the grounding devices.
In the method, an electric connection relation between a cable cabinet door and associated equipment is included in a cable cabinet door static model, equipment model data and equipment real-time state of a power distribution network are loaded after an operation ticket task is acquired, when equipment to be operated is the cable cabinet door, a topology island is searched in the equipment model data according to the equipment real-time state of the cable cabinet door, and the topology island is decomposed into at least one topology sub-island according to the type of operation to be executed; and sequentially judging whether the topological sub-island has grounding equipment or not according to the priority order until a target topological sub-island with the grounding equipment is obtained, and finally obtaining misoperation-preventing check data according to the real-time state of the equipment in the grounding equipment in the target topological sub-island. According to the method, the equipment connection relation of the power system wiring diagram is perfected through the cable cabinet door static model, the complete and effective power distribution network full-network topology is achieved, further, the topology island related to the cable cabinet door can be automatically generated, the topology island is decomposed into at least one topology sub-island according to the type of operation to be executed, whether the topology sub-island has grounding equipment or not is judged according to a preset priority order, the real-time equipment state of the grounding equipment in the topology sub-island is combined, misoperation prevention locking judgment of distribution network switching operation is achieved, comprehensiveness, accuracy and high efficiency of misoperation prevention verification are guaranteed, safety of operators is comprehensively guaranteed, and working efficiency of the operators is improved.
The static model of the cable cabinet door is established in advance by the following modes: creating a cable cabinet door model object; constructing a cable cabinet door spacing model; wherein, this interval model of cable cabinet door includes: the method comprises the steps of a subtype of a cable cabinet door, connecting line information of the cable cabinet door, an equivalent model of cable cabinet door power equipment, a topological node where the cable cabinet door is located, and a switch, a disconnecting link and a grounding equipment object in a cable cabinet door interval; constructing a cable cabinet door association interval model; wherein, the cable cabinet door association interval model comprises: grounding equipment in the upper-level interval associated with the interval where the cable cabinet door is located, and designated equipment in the upper-level interval associated with the interval where the cable cabinet door is located; and (5) associating the locking device of the cable cabinet door to obtain the cable cabinet door static model.
The device further comprises a first generation module for: generating a first initial model of the cable cabinet door spacing model, and executing the following operations in the first initial model to obtain the cable cabinet door spacing model: determining the subtype of the cable cabinet door according to preset misoperation prevention logic of the cable cabinet door; wherein, the subtype comprises a common cable cabinet door or a transformer cabinet door; analyzing the primitives of the cable cabinet door on the electric primary wiring diagram of the power distribution network to obtain the connection line information of the cable cabinet door; the connecting wire information comprises an alternating current connecting wire and/or a direct current connecting wire which are directly connected with the cable cabinet door; generating an equivalent model of the cable cabinet door power equipment; the equivalent model is provided with equipment terminals, and the topological node numbers corresponding to the equipment terminals are set as follows: the connecting wire of the cable cabinet door belongs to a topological node; setting a topological node of the grounding equipment directly connected with the cable cabinet door as the topological node where the cable cabinet door is positioned; the grounding device includes: a ground knife or a pole ground wire on a line segment directly connected with the cable cabinet door; and decomposing the composite equipment in the cable cabinet door interval to construct a linkage disconnecting link object with a virtual terminal.
The device further comprises a second generation module for: generating a second initial model of the cable cabinet door association interval model, and executing the following operations in the second initial model to obtain the cable cabinet door association interval model: analyzing the grounding equipment in the upper-stage switch interval related to the interval where the cable cabinet door is positioned, and setting at least one equipment unit for the grounding equipment in the upper-stage switch interval; constructing a branch object of the equipment in a previous-stage interval of interval association of the cable cabinet door, wherein the cabinet door and the branch object obviously disconnect the equipment, and associating a branch node of the branch object to a cable cabinet door interval model; wherein the composite device in the cable cabinet door association space is broken down into a distinct disconnect device and a ground device.
The device further comprises a third generation module for: generating a topological node model comprising a cable cabinet door static model based on an electric primary wiring diagram of the power distribution network; the topological node model indicates a power grid topological structure of the power distribution network; the topological node model comprises equipment model objects of equipment in the power distribution network and association relations among the equipment model objects.
The device further comprises a verification result acquisition module for: and checking the locking code of a locking device associated with the equipment to be operated in the operation ticket task to obtain a checking result.
The first searching module is further configured to obtain a virtual terminal of the cable cabinet door, search for an obviously disconnected device from device model data based on the real-time state of the device by using a topological node where the virtual terminal of the cable cabinet door is located as a starting point, and obtain a region device with an obviously disconnected range; constructing a topological island based on the regional equipment of the obviously disconnected equipment; wherein, the topological island comprises: island state information of a topological island, topological node information in the topological island, electrical equipment information of an interval where a cable cabinet door is located, and electrical equipment information of an associated interval of the interval where the cable cabinet door is located.
The apparatus further comprises a first construction module configured to: and searching the interval equipment of the cable cabinet door from the equipment model data, and constructing an interval object model based on the search result.
The first decomposition module is further configured to: if the type of the operation to be performed is to open the cable cabinet door, the topology sub-island decomposed by the topology island comprises: a first topological sub-island reflecting the interval to which the cable cabinet door belongs, a second topological sub-island reflecting the same unit as the cable cabinet door but different intervals, and a third topological sub-island reflecting the different unit from the cable cabinet door; if the type of operation to be performed is closing a cable cabinet door, the topology sub-islands of the topology island decomposition include: and the first topological sub-island reflects the interval of the cable cabinet door.
The type of the operation to be performed is that a cable cabinet door is opened; the first determining module is further configured to: analyzing whether grounding equipment exists in the first topological sub-island; if the first topological sub-island is provided with grounding equipment, checking whether the associated equipment of the cable cabinet door is provided with voltage to ground or not, and obtaining misoperation-preventing check data.
The device further comprises a first judging module, configured to: if the first topological sub-island does not have the grounding device, judging whether the second topological sub-island and the third topological sub-island have the grounding device or not in sequence until the topological sub-island with the grounding device is obtained; and checking whether the associated equipment of the cable cabinet door has voltage to ground or not, and obtaining the anti-misoperation check data.
The type of operation to be performed in the operation ticket task is to close the cable cabinet door; the verification data acquisition module is further configured to: and analyzing the dismantling state of the high-voltage common ground wire in the interval of the cable cabinet door to obtain the misoperation-preventing check data.
The type of the equipment to be operated in the operation ticket task also comprises obviously disconnecting equipment, and the type of the operation to be executed in the operation ticket task is a combined operation; the method further comprises the following steps: searching on two sides of the device which is obviously disconnected on the basis of the real-time state of the device to obtain a plurality of topological islands; or if the attribute of the obviously disconnected equipment is a disconnecting link, searching by taking two terminals of a disconnecting link branch as starting points based on the real-time state of the equipment, so as to obtain a plurality of topological islands.
The equipment to be operated in the operation ticket task also comprises obviously disconnected equipment, and the type of operation to be executed in the operation ticket task is a combined operation; the verification data acquisition module is further configured to: analyzing the switch state of an interval model of obviously disconnected equipment; analyzing the grounding state of the grounding device in a plurality of topological islands corresponding to the obviously disconnected device; and analyzing the states of the cable cabinet doors on the two sides of the obviously disconnected equipment to obtain the misoperation-preventing check data.
The equipment type to be operated in the operation ticket task further comprises grounding equipment; the device further comprises a second search module for: if the type of the operation to be executed of the grounding device is a combined operation, taking a topological node of the grounding device as a starting point, and searching based on the real-time state of the device to obtain a topological island; if the type of the operation to be performed of the grounding device is not the combined operation, and the type of the operation to be performed is that the grounding knife is pulled or the ground wire under the rod is removed, the topological node where the device terminal of the grounding device is located is taken as a starting point, or the topological node where the branch terminal of the grounding device is located is taken as a starting point, and a plurality of topological islands are obtained based on the real-time state search of the device.
The equipment to be operated in the operation ticket task further comprises grounding equipment; the operation type to be executed in the operation ticket task is a combination operation; the verification data acquisition module is further configured to: analyzing whether the two sides of the line of the grounding device are obviously disconnected in the topological island; and checking whether the grounding equipment has voltage to ground or not, and obtaining the anti-misoperation check data.
The equipment to be operated in the operation ticket task further comprises grounding equipment; the type of operation to be executed in the operation ticket task is that the ground knife is pulled open or the ground wire under the rod is removed; the verification data acquisition module is further configured to: analyzing whether a cable cabinet door in the interval of the grounding equipment is closed or not; analyzing whether a ground knife or a pole lower ground wire exists in a plurality of topological islands corresponding to the grounding equipment; if a ground knife or a pole ground wire exists, whether a cable cabinet door in the topological island is closed or not is analyzed, and misoperation-preventing check data are obtained.
The equipment to be operated in the operation ticket task further comprises a common switch; the verification data acquisition module is further configured to: if the operation type to be executed in the operation ticket task is switch operation, analyzing whether a power supply is grounded or not, and analyzing whether the states of the knife switches at two sides of the common switch are consistent or not to obtain misoperation-preventing check data; if the operation type to be executed in the operation ticket task is loop closing operation or loop opening operation, analyzing the load state, the circuit voltage fluctuation state and the states of the relay protection device and the safety automatic device of equipment in a circuit where the common switch is positioned after the operation type to be executed is executed, and obtaining the error operation prevention verification data.
The device further comprises a verification result acquisition module for: and verifying the verification data based on a preset topology logic to obtain a verification result.
The device further comprises a first updating module for: if the verification result indicates that verification is passed, generating a signal for allowing unlocking of the equipment to be operated so as to unlock the equipment to be operated through an unlocking device; and acquiring operation records and equipment state real-time information of equipment to be operated, and updating the state of the equipment to be operated in the electric primary wiring diagram based on the equipment state real-time information.
The device further comprises a first acquisition module for: acquiring a video stream related to the equipment to be operated; the video stream comprises video information of associated equipment of equipment to be operated or video information of equipment in an interval of the equipment to be operated; decoding the video stream to obtain a picture stream corresponding to the video stream; based on a preset neural network reasoning model, analyzing the picture stream in a specified analysis type to obtain an analysis result; the designated analysis type comprises area intrusion analysis, knife switch analysis, worker dressing specification analysis or equipment associated device analysis.
The first obtaining module is further configured to: based on a preset neural network reasoning model, carrying out regional intrusion analysis on the picture stream to obtain a first analysis result; the first analysis result indicates: whether to mistakenly enter a charging interval; carrying out knife switch analysis on the picture stream based on a preset neural network reasoning model to obtain a second analysis result; in the process of knife switch analysis, a neural network reasoning model identifies a knife switch arm of a knife switch in a picture stream, and determines the equipment state of the knife switch based on the state of the knife switch arm; the second analysis result comprises the equipment state of the disconnecting link; based on a preset neural network reasoning model, carrying out worker dressing standard analysis on the picture stream to obtain a third analysis result; the third analysis result indicates: whether the worker wears the safety helmet and/or whether the worker wears the work clothes; based on a preset neural network reasoning model, analyzing a device associated with the picture stream by using equipment to obtain a fourth analysis result; the fourth analysis result indicates: indicator light status associated with the device.
The verification result obtaining module is further configured to: and generating a verification result based on the analysis result and the verification data for preventing misoperation.
The embodiment also provides a power distribution network misoperation prevention verification device based on the cable cabinet door model, which comprises a processor and a memory, wherein the memory stores machine executable instructions which can be executed by the processor, and the processor executes the machine executable instructions to realize the power distribution network misoperation prevention verification method based on the cable cabinet door model. The electronic device may be a server or a terminal device.
Referring to fig. 11, the electronic device includes a processor 100 and a memory 101, where the memory 101 stores machine executable instructions that can be executed by the processor 100, and the processor 100 executes the machine executable instructions to implement the above-mentioned anti-misoperation verification method for the power distribution network based on the cable cabinet door model.
Further, the electronic device shown in fig. 11 further includes a bus 102 and a communication interface 103, and the processor 100, the communication interface 103, and the memory 101 are connected through the bus 102.
The memory 101 may include a high-speed random access memory (RAM, random Access Memory), and may further include a non-volatile memory (non-volatile memory), such as at least one magnetic disk memory. The communication connection between the system network element and at least one other network element is implemented via at least one communication interface 103 (which may be wired or wireless), and may use the internet, a wide area network, a local network, a metropolitan area network, etc. Bus 102 may be an ISA bus, a PCI bus, an EISA bus, or the like. The buses may be classified as address buses, data buses, control buses, etc. For ease of illustration, only one bi-directional arrow is shown in FIG. 11, but not only one bus or type of bus.
The processor 100 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in the processor 100 or by instructions in the form of software. The processor 100 may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU for short), a network processor (Network Processor, NP for short), etc.; but also digital signal processors (Digital Signal Processor, DSP for short), application specific integrated circuits (Application Specific Integrated Circuit, ASIC for short), field-programmable gate arrays (Field-Programmable Gate Array, FPGA for short) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in the memory 101, and the processor 100 reads the information in the memory 101 and, in combination with its hardware, performs the steps of the method of the previous embodiment.
The embodiment also provides a machine-readable storage medium, wherein the machine-readable storage medium stores machine-executable instructions, and when the machine-executable instructions are called and executed by a processor, the machine-executable instructions cause the processor to realize the power distribution network misoperation prevention verification method based on the cable cabinet door model.
The computer program product of the power distribution network misoperation prevention verification method, device, equipment and storage medium based on the cable cabinet door model provided by the embodiment of the invention comprises a computer readable storage medium storing program codes, wherein the instructions included in the program codes can be used for executing the method described in the method embodiment, and specific implementation can be seen in the method embodiment and is not repeated herein.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described system and apparatus may refer to corresponding procedures in the foregoing method embodiments, which are not described herein again.
In addition, in the description of embodiments of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood by those skilled in the art in specific cases.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above examples are only specific embodiments of the present invention for illustrating the technical solution of the present invention, but not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the foregoing examples, it will be understood by those skilled in the art that the present invention is not limited thereto: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (25)
1. The utility model provides a distribution network misoperation prevention verification method based on a cable cabinet door model, which is characterized by comprising the following steps:
acquiring an operation ticket task, and loading equipment model data and equipment real-time state of the power distribution network; the operation ticket task comprises a device type to be operated and an operation type to be executed; the equipment model data comprises a cable cabinet door static model, and the cable cabinet door static model indicates: the electric connection relation between the cable cabinet door and associated equipment of the cable cabinet door in the power distribution network;
If the type of the equipment to be operated is a cable cabinet door, searching from the equipment model data based on the real-time state of the equipment of the cable cabinet door to obtain a topological island;
decomposing the topological island into topological sub-islands containing at least one of the following according to the type of operation to be performed: a first topological sub-island reflecting the interval to which the cable cabinet door belongs, a second topological sub-island reflecting the same unit as the cable cabinet door but different intervals, and a third topological sub-island reflecting a different unit from the cable cabinet door; wherein the interval represents a physical grouping of modular devices; the unit is a device information set of a designated area;
sequentially judging whether the topological sub-islands in the topological island are provided with grounding devices according to a preset priority order until a target topological sub-island with the grounding devices is obtained, and obtaining misoperation-preventing check data according to the real-time state of the devices in the target topological sub-island;
the method further comprises the steps of: if the type of the operation to be performed is opening the cable cabinet door, the topology sub-island of the topology island decomposition comprises: a first topological sub-island reflecting the interval to which the cable cabinet door belongs, a second topological sub-island reflecting the same unit as the cable cabinet door but different intervals, and a third topological sub-island reflecting a different unit from the cable cabinet door; if the type of the operation to be performed is closing the cable cabinet door, the topology sub-island of the topology island decomposition comprises: and the first topological sub-island reflects the interval to which the cable cabinet door belongs.
2. The method according to claim 1, characterized in that the static model of the cable cabinet door is previously established by:
creating a cable cabinet door model object;
constructing a cable cabinet door spacing model; wherein, this interval model of cable cabinet door includes: the cable cabinet door comprises a subtype of the cable cabinet door, connecting line information of the cable cabinet door, an equivalent model of power equipment of the cable cabinet door, a topological node where the cable cabinet door is located, and a switch, a disconnecting link and a grounding equipment object in an interval of the cable cabinet door;
constructing a cable cabinet door association interval model; wherein, the cable cabinet door association interval model comprises: the device comprises grounding equipment in a previous-level interval related to the interval of the cable cabinet door and appointed equipment in the previous-level interval related to the interval of the cable cabinet door;
and associating the locking device of the cable cabinet door to obtain the cable cabinet door static model.
3. The method of claim 2, wherein the step of constructing the cable cabinet door present compartment model comprises:
generating a first initial model of the cable cabinet door spacing model, and executing the following operations in the first initial model to obtain the cable cabinet door spacing model:
Determining the subtype of the cable cabinet door according to preset misoperation prevention logic of the cable cabinet door; wherein the subtype comprises a common cable cabinet door or a transformer cabinet door;
analyzing the primitives of the cable cabinet door on the electric primary wiring diagram of the power distribution network to obtain the connection line information of the cable cabinet door; the cable cabinet door comprises a cable cabinet door body, wherein the connecting wire information comprises an alternating current connecting wire and/or a direct current connecting wire which are directly connected with the cable cabinet door;
generating an equivalent model of the cable cabinet door power equipment; the equivalent model is provided with equipment terminals, and the topological node numbers corresponding to the equipment terminals are set as follows: the connecting wire of the cable cabinet door belongs to a topological node;
setting a topological node of grounding equipment directly connected with the cable cabinet door as the topological node where the cable cabinet door is positioned; the grounding device includes: a ground knife or a pole lower ground wire on a line segment directly connected with the cable cabinet door;
and decomposing the composite equipment in the cable cabinet door interval to construct a linkage disconnecting link object with a virtual terminal.
4. The method of claim 2, wherein the step of constructing a cable cabinet door association interval model comprises:
generating a second initial model of a cable cabinet door association interval model, and executing the following operations in the second initial model to obtain the cable cabinet door association interval model:
Analyzing grounding equipment in a higher-level switch interval related to the interval of the cable cabinet door, and setting at least one equipment unit for the grounding equipment in the higher-level switch interval;
constructing a cabinet door and a branch object of obviously disconnected equipment in a previous-stage interval associated with the interval in which the cable cabinet door is positioned, and associating a branch node of the branch object to the cable cabinet door interval model; wherein the composite device in the cable cabinet door association interval is broken down into the distinct disconnect device and the ground device.
5. The method according to claim 2, wherein after the step of relating the locking means of the cable closet door to obtain the static model of the cable closet door, the method further comprises:
generating a topological node model comprising the cable cabinet door static model based on the electric primary wiring diagram of the power distribution network; the topological node model indicates a power grid topological structure of the power distribution network; the topological node model comprises equipment model objects of equipment in the power distribution network and association relations among the equipment model objects.
6. The method according to claim 1, wherein, if the type of the device to be operated is a cable cabinet door, the method further comprises, before the step of searching for topology islands from the device model data based on a device real-time status of the cable cabinet door: and checking the lock code of a locking device associated with the equipment to be operated in the operation ticket task to obtain a checking result.
7. The method according to claim 1, wherein the step of searching for topology islands from the device model data based on the real-time status of the device of the cable cabinet door comprises:
obtaining a virtual terminal of the cable cabinet door, and searching for obviously disconnected equipment from the equipment model data based on the real-time state of the equipment by taking a topological node of the virtual terminal of the cable cabinet door as a starting point to obtain area equipment with an obvious disconnection range;
constructing a topological island based on the area equipment of the obviously disconnected equipment; wherein, include in the topology island: island state information of the topological island, topological node information in the topological island, electrical equipment information of an interval where the cable cabinet door is located, and electrical equipment information of an associated interval of the interval where the cable cabinet door is located.
8. The method of claim 7, wherein the step of obtaining the virtual terminal of the cable cabinet door, starting from a topological node where the virtual terminal of the cable cabinet door is located, searching for a significantly disconnected device from the device model data based on the device real-time status, and obtaining a significantly disconnected range of regional devices, further comprises, before the step of:
And searching the interval equipment of the cable cabinet door from the equipment model data, and constructing an interval object model based on a search result.
9. The method according to claim 1, wherein the type of operation to be performed is opening of the cable door;
the step of sequentially judging whether the topological sub-island in the topological island has grounding equipment or not according to a preset priority order until a target topological sub-island with the grounding equipment is obtained, and obtaining misoperation-preventing verification data according to the equipment real-time state of the grounding equipment in the target topological sub-island comprises the following steps:
analyzing whether grounding equipment exists in the first topological sub-island;
and if the grounding device exists in the first topological sub-island, checking whether the associated device of the cable cabinet door has a voltage to ground or not, and obtaining error operation prevention verification data.
10. The method according to claim 9, wherein the method further comprises:
if the first topological sub-island does not have the grounding device, judging whether the second topological sub-island and the third topological sub-island have the grounding device or not in sequence until the topological sub-island with the grounding device is obtained;
And checking whether the associated equipment of the cable cabinet door has voltage to ground or not, and obtaining misoperation-preventing check data.
11. The method according to claim 1, characterized in that the type of operation to be performed in the operation ticket task is closing the cable door; the method further comprises the steps of:
and analyzing the dismantling state of the high-voltage common ground wire in the interval of the cable cabinet door to obtain misoperation-preventing check data.
12. The method of claim 1, wherein the type of device to be operated in the ticket task further comprises a clear disconnect device, and the type of operation to be performed in the ticket task is a close operation; the method further comprises the steps of:
searching on two sides of the device which is obviously disconnected with the device respectively based on the real-time state of the device to obtain a plurality of topological islands;
or if the attribute of the obviously disconnected equipment is a disconnecting link, searching by taking two terminals of a disconnecting link branch as starting points based on the real-time state of the equipment, so as to obtain a plurality of topological islands.
13. The method of claim 1, wherein the devices to be operated in the ticket task further comprise a distinct disconnect device, and wherein the type of operation to be performed in the ticket task is a close operation; the method further comprises the steps of:
Analyzing the switch state of the interval model of the obviously disconnected equipment;
analyzing the grounding state of the grounding device in a plurality of topological islands corresponding to the obviously disconnected device;
and analyzing the states of the cable cabinet doors on the two sides of the obvious disconnection equipment to obtain misoperation-preventing check data.
14. The method according to claim 1, characterized in that the type of device to be operated in the ticket task further comprises a grounding device; the method further comprises the steps of:
if the operation type to be executed of the grounding device is a combined operation, taking the topological node of the grounding device as a starting point, and searching based on the real-time state of the device to obtain a topological island;
if the operation type to be executed of the grounding device is not the combined operation, and the operation type to be executed is that a grounding knife is pulled open or a ground wire under a rod is removed, the topological node where a device terminal of the grounding device is located is taken as a starting point, or the topological node where a branch terminal of the grounding device is located is taken as a starting point, and a plurality of topological islands are obtained based on the real-time state search of the device.
15. The method according to claim 1, characterized in that the device to be operated in the ticket task further comprises a grounding device; the operation type to be executed in the operation ticket task is a combined operation; the method further comprises the steps of:
Analyzing whether obvious disconnection equipment exists on two sides of a circuit of the grounding equipment in the topological island;
and checking whether the grounding equipment has voltage to ground or not, and obtaining error-operation-preventing check data.
16. The method according to claim 1, characterized in that the device to be operated in the ticket task further comprises a grounding device; the type of operation to be executed in the operation ticket task is that the ground knife is pulled open or the ground wire under the rod is removed; the method further comprises the steps of:
analyzing whether a cable cabinet door in the interval of the grounding equipment is closed or not;
analyzing whether a ground knife or an under-rod ground wire exists in a plurality of topological islands corresponding to the grounding equipment;
and if a ground knife or a pole ground wire exists, analyzing whether a cable cabinet door in the topological island is closed or not to obtain misoperation-preventing check data.
17. The method according to claim 1, characterized in that the device to be operated in the ticket task further comprises a normal switch; the method further comprises the steps of:
if the operation type to be executed in the operation ticket task is switch operation, analyzing whether a power supply is grounded or not, and analyzing whether the states of the disconnecting link at two sides of the common switch are consistent or not to obtain error operation prevention check data;
And if the operation type to be executed in the operation ticket task is loop closing operation or loop opening operation, analyzing the load state, the circuit voltage fluctuation state, the relay protection device and the safety automatic device of the equipment in the circuit where the common switch is positioned after the operation type to be executed is executed, and obtaining the error operation prevention verification data.
18. The method according to claim 1, wherein the step of sequentially judging whether the topology sub-islands in the topology island have the grounding device according to a preset priority order until a target topology sub-island having the grounding device is obtained, and obtaining the anti-misoperation verification data according to the real-time state of the device in the target topology sub-island, further comprises: and verifying the verification data based on a preset topology logic to obtain a verification result.
19. The method of claim 18, wherein after the step of verifying the verification data based on a predetermined topology logic to obtain a verification result, the method further comprises:
if the verification result indicates that verification is passed, generating a signal for allowing unlocking of the equipment to be operated so as to unlock the equipment to be operated through an unlocking device;
And acquiring the operation record and the equipment state real-time information of the equipment to be operated, and updating the state of the equipment to be operated in the electric primary wiring diagram of the power distribution network based on the equipment state real-time information.
20. The method according to claim 1, wherein the method further comprises:
acquiring a video stream related to the equipment to be operated; the video stream comprises video information of associated equipment of the equipment to be operated or video information of equipment in an interval of the equipment to be operated;
decoding the video stream to obtain a picture stream corresponding to the video stream;
based on a preset neural network reasoning model, analyzing the picture stream in a specified analysis type to obtain an analysis result; wherein the specified analysis type comprises area intrusion analysis, knife switch analysis, worker dressing specification analysis, or equipment-related device analysis.
21. The method of claim 20, wherein the step of analyzing the picture stream for a specified analysis type based on a predetermined neural network inference model to obtain an analysis result comprises:
based on a preset neural network reasoning model, carrying out area intrusion analysis on the picture stream to obtain a first analysis result; the first analysis result indicates: whether to mistakenly enter a charging interval;
Performing knife switch analysis on the picture stream based on a preset neural network reasoning model to obtain a second analysis result; in the process of analyzing the disconnecting link, the neural network reasoning model identifies a disconnecting link arm of the disconnecting link in the picture flow, and determines the equipment state of the disconnecting link based on the state of the disconnecting link arm; the second analysis result comprises the equipment state of the disconnecting link;
performing worker dressing standard analysis on the picture stream based on a preset neural network reasoning model to obtain a third analysis result; the third analysis result indicates: whether the worker wears the safety helmet and/or whether the worker wears the work clothes;
based on a preset neural network reasoning model, analyzing the device associated with the picture stream by equipment to obtain a fourth analysis result; the fourth analysis result indicates: the device is associated with an indicator light status.
22. The method of claim 20, wherein after the step of analyzing the picture stream to obtain an analysis result by performing an analysis of a specified analysis type based on a predetermined neural network inference model, the method further comprises:
and generating a verification result based on the analysis result and the misoperation-preventing verification data.
23. Misoperation prevention verification device for power distribution network based on cable cabinet door model, which is characterized by comprising:
the first loading module is used for acquiring an operation ticket task and loading equipment model data and equipment real-time state of the power distribution network; the operation ticket task comprises a device type to be operated and an operation type to be executed; the equipment model data comprises a cable cabinet door static model, and the cable cabinet door static model indicates: the electric connection relation between the cable cabinet door and associated equipment of the cable cabinet door in the power distribution network;
the first search module is used for searching and obtaining a topological island from the equipment model data based on the real-time state of the equipment of the cable cabinet door if the type of the equipment to be operated is the cable cabinet door;
the first decomposition module is used for decomposing the topological island into topological subislands containing at least one of the following according to the type of the operation to be performed: a first topological sub-island reflecting the interval to which the cable cabinet door belongs, a second topological sub-island reflecting the same unit as the cable cabinet door but different intervals, and a third topological sub-island reflecting a different unit from the cable cabinet door; wherein the interval represents a physical grouping of modular devices; the unit is a device information set of a designated area;
The first determining module is used for sequentially judging whether the topological sub-islands in the topological island have grounding equipment according to a preset priority order until a target topological sub-island with the grounding equipment is obtained, and obtaining misoperation-preventing check data according to the real-time state of the equipment in the target topological sub-island;
the first decomposition module is further configured to, if the type of operation to be performed is opening the cable cabinet door, decompose a topology sub-island of the topology island, where the topology sub-island includes: a first topological sub-island reflecting the interval to which the cable cabinet door belongs, a second topological sub-island reflecting the same unit as the cable cabinet door but different intervals, and a third topological sub-island reflecting a different unit from the cable cabinet door; if the type of the operation to be performed is closing the cable cabinet door, the topology sub-island of the topology island decomposition comprises: and the first topological sub-island reflects the interval to which the cable cabinet door belongs.
24. The power distribution network misoperation prevention verification equipment based on the cable cabinet door model is characterized by comprising a processor and a memory, wherein the memory stores machine executable instructions which can be executed by the processor, and the processor executes the machine executable instructions to realize the power distribution network misoperation prevention verification method based on the cable cabinet door model according to any one of claims 1 to 22.
25. A machine-readable storage medium storing machine-executable instructions which, when invoked and executed by a processor, cause the processor to implement the cable cabinet door model-based power distribution network anti-misoperation verification method of any one of claims 1 to 22.
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| Vulnerability Assessment of Power Grid Using Graph topological Indices;Chales J Kim etal.;《International Journal of Emerging Electric Power Systems》;第1-17页 * |
| 城市配电网防误操作与故障检测相融合的一体化系统;王群飞;;电工技术(08);第3-5页 * |
| 配网微机防误综合操作系统的开发与应用;童贞翔;;电力安全技术(12);第37-40页 * |
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