CN117477543A - Power distribution system stability evaluation system, method and electronic equipment - Google Patents
Power distribution system stability evaluation system, method and electronic equipment Download PDFInfo
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- H—ELECTRICITY
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Abstract
The invention discloses an evaluation system and method for stability of a power distribution system and electronic equipment, wherein the method comprises the following steps: acquiring power distribution data of a power distribution system in a target detection area; the power distribution data at least comprises a power distribution system topological structure, actual loads of all nodes in the power distribution system topological structure and preset loads; determining first calculation result data in the power distribution system according to the actual load and the topological structure of the power distribution system; determining second calculation result data in the power distribution system according to the preset load and the power distribution system topological structure; and determining an evaluation result of the stability of the power distribution system according to the first calculation result, the second calculation result and the power distribution data. By adopting the technical scheme, the calculation efficiency of the calculation result of the power distribution system is improved, and the accuracy of the evaluation result is ensured.
Description
Technical Field
The invention relates to the technical field of power grid evaluation, in particular to a system and a method for evaluating stability of a power distribution system and electronic equipment.
Background
As the demand for power supply continues to grow, the physical structure of the power system is not always sufficiently expanded, which often results in systems that are difficult to meet the demands of end users when approaching load limits. Furthermore, the interconnection and operation of extremely complex power transmission networks make it difficult to monitor and control the entire system.
An increase in system load increases power losses in the power transmission system and results in a decrease in voltage amplitude. To maintain a satisfactory voltage profile, the reactive power reserve may be exhausted and cause the generator to lose voltage control, thereby increasing the angular difference between the transmission lines and possibly resulting in a loss of voltage stability. There is therefore an urgent need for a method that can evaluate the stability of a power distribution system.
Disclosure of Invention
The invention provides a system, a method and electronic equipment for evaluating the stability of a power distribution system, and aims to solve the problem of low calculation efficiency caused by single calculation module in the evaluation process of the power distribution system.
According to an aspect of the present invention, there is provided an evaluation system for stability of a power distribution system, the system including a data acquisition module, a first calculation module, a second calculation module, and a stability evaluation module, wherein:
the data acquisition module is used for acquiring power distribution data of the power distribution system in the target detection area and respectively transmitting the power distribution data to the first calculation module, the second calculation module and the stability evaluation module; the power distribution data at least comprises a power distribution system topological structure, actual loads of all nodes in the power distribution system topological structure and preset loads;
the first calculation module is used for determining first calculation result data in the power distribution system according to the actual load and the power distribution system topological structure and sending the first calculation result data to the stability evaluation module; the first calculation result data at least comprises the total actual load and the maximum load node of the power distribution system;
the second calculation module is used for determining second calculation result data in the power distribution system according to the preset load and the power distribution system topological structure and sending the second calculation result data to the stability evaluation module; the second calculation result data at least comprises total preset load and preset maximum load nodes of the power distribution system;
and the stability evaluation module is used for determining an evaluation result of the stability of the power distribution system according to the first calculation result, the second calculation result and the power distribution data.
According to another aspect of the present invention, there is provided a method of evaluating stability of a power distribution system, the method comprising:
acquiring power distribution data of a power distribution system in a target detection area; the power distribution data at least comprises a power distribution system topological structure, actual loads of all nodes in the power distribution system topological structure and preset loads;
determining first calculation result data in the power distribution system according to the actual load and the topological structure of the power distribution system; the first calculation result data at least comprises the total actual load and the maximum load node of the power distribution system;
determining second calculation result data in the power distribution system according to the preset load and the power distribution system topological structure; the second calculation result data at least comprises total preset load and preset maximum load nodes of the power distribution system;
and determining an evaluation result of the stability of the power distribution system according to the first calculation result, the second calculation result and the power distribution data.
According to another aspect of the present invention, there is provided an electronic apparatus including:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein,
the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the method of evaluating the stability of a power distribution system of any of the embodiments of the present invention.
According to another aspect of the present invention, there is provided a computer readable storage medium storing computer instructions for causing a processor to perform a method of evaluating the stability of a power distribution system according to any of the embodiments of the present invention.
According to the technical scheme, the first calculation result data in the power distribution system is determined according to the actual load and the topology structure of the power distribution system by acquiring the power distribution data of the power distribution system in the target detection area, the second calculation result data in the power distribution system is determined according to the preset load and the topology structure of the power distribution system, and finally the evaluation result of the stability of the power distribution system is determined according to the first calculation result, the second calculation result and the power distribution data, so that the calculation efficiency of the calculation result of the power distribution system is improved, the accuracy of the evaluation result is ensured, and the calculation rate is accelerated by parallel processing of calculation.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an evaluation system for stability of a power distribution system according to a first embodiment of the present invention;
fig. 2 is a flowchart of a method for evaluating stability of a power distribution system according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electronic device implementing a method for evaluating stability of a power distribution system according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
Fig. 1 is a schematic structural diagram of a power distribution system stability evaluation system according to an embodiment of the present invention, where the power distribution system stability evaluation system is applicable to a situation where the power distribution system evaluation speed is slow and the evaluation process uses a single processor, and the power distribution system stability evaluation system may be implemented in hardware and/or software, and the power distribution system stability evaluation system may be configured in an electronic device with data processing capability. As shown in fig. 1, the system for evaluating the stability of the power distribution system of the present embodiment may include a data acquisition module 110, a first calculation module 120, a second calculation module, and a stability evaluation module 130. Wherein:
the data acquisition module is used for acquiring power distribution data of the power distribution system in the target detection area and respectively transmitting the power distribution data to the first calculation module, the second calculation module and the stability evaluation module; the power distribution data at least comprises a power distribution system topological structure, actual loads of all nodes in the power distribution system topological structure and preset loads;
the first calculation module is used for determining first calculation result data in the power distribution system according to the actual load and the power distribution system topological structure and sending the first calculation result data to the stability evaluation module; the first calculation result data at least comprises the total actual load of the power distribution system and an actual maximum load node;
the second calculation module is used for determining second calculation result data in the power distribution system according to the preset load and the power distribution system topological structure and sending the second calculation result data to the stability evaluation module; the second calculation result data at least comprises total preset load and preset maximum load nodes of the power distribution system;
and the stability evaluation module is used for determining an evaluation result of the stability of the power distribution system according to the first calculation result data, the second calculation result and the power distribution data.
And when the stability of the power distribution system in the target detection area is evaluated newly, acquiring the power distribution data of the power distribution system in the target detection area through a data acquisition module. The acquisition method comprises, but is not limited to, the steps of reading power distribution data in a power distribution system association database, acquiring consumption of each node transformer through a sensor and the like.
After the data acquisition module acquires the power distribution data, the power distribution data are respectively sent to the first calculation module, the second calculation module and the stability evaluation module.
The power distribution data comprise a plurality of data, so that in order to reduce the operation pressure of the first calculation module and the second calculation module, the first calculation module and the second calculation module can use hardware resources for calculating the data as much as possible, after the data acquisition module acquires the power distribution data, the content in the power distribution data can be extracted, at least the power distribution system topological structure, the actual load of each node and the preset load are obtained, the actual load and the power distribution system topological structure are sent to the first calculation module, the preset load and the power distribution system topological structure are sent to the second calculation module, and the power distribution data are sent to the stability evaluation module.
After the first calculation module obtains the actual load and the topological structure of the power distribution system, the first calculation module calculates the total actual load of the power distribution system according to the actual load of each node and the distribution situation of the topological result of the power distribution system according to the actual load and the topological structure of the power distribution system, and compares the actual loads of each node one by one, so that the maximum load node is determined. And packaging the maximum load node and the total actual load, and sending the maximum load node and the total actual load as first calculation result data to the stability evaluation module.
After the second calculation module obtains the preset load and the topology structure of the power distribution system, the second calculation module can calculate the total preset load of the power distribution system according to the preset load of each node and the distribution situation of the topology result of the power distribution system according to the preset load and the topology structure of the power distribution system, and the preset loads of all nodes are compared one by one, so that the preset maximum load node is determined. And packaging the preset maximum load node and the preset load, and sending the packaged maximum load node and the preset load as second calculation result data to the stability evaluation module.
For the first calculation module and the second calculation module, the GPU and the CPU may be used to calculate the first calculation module and the second calculation module respectively.
And respectively judging whether the preset maximum load node is the same as the maximum load node, whether the total actual load is the same as the total preset load, and whether the actual load and the preset load of each node are the same according to the first calculation result, the second calculation result and the power distribution data, and taking the determination result as an evaluation result of the stability of the power distribution system.
Optionally, the first calculation module includes an actual sequence determining unit, a maximum node determining unit, and a total load determining unit, where:
the actual sequence determining unit is used for determining the actual load sequence of each node according to the actual load and the topological structure of the power distribution system and sending the actual load sequence to the maximum node determining unit;
the maximum node determining unit is used for determining an actual maximum load node according to the actual load sequence and sending the actual maximum load node to the stability evaluation module;
and the total load determining unit is used for determining the total actual load according to the actual load and sending the total actual load to the stability evaluation module.
The actual load sequence may be a sequencing result obtained by sequencing each node according to the actual load.
After the first calculation module obtains the actual load and the power distribution system topological structure sent by the data acquisition module, each node in the power distribution system topological structure is ordered according to the actual load, so that the actual load sequence is obtained. And determining the maximum load node according to the actual load sequence, and summarizing the actual load sequence to obtain the total actual load. And packaging the obtained total actual load and the maximum load node, and sending the obtained total actual load and the maximum load node to the stability evaluation module as first calculation result data.
Optionally, the second calculation module includes a load sequence determining unit, a preset node determining unit, a preset total voltage determining unit, and a preset voltage determining unit, where:
the load sequence determining unit is used for determining a node preset load degree sequence according to the preset load and the topological structure of the power distribution system and sending the node preset load degree sequence to the preset node determining unit;
the preset node determining unit is used for determining a preset maximum load node according to the node load degree sequence and sending the preset maximum load node to the stability evaluating module;
the total preset load determining unit is used for summarizing the preset loads to obtain total preset loads and sending the total preset loads to the stability evaluation module.
The node preset load degree sequence can be a sequencing result obtained by sequencing each node according to the preset load.
After the second calculation module obtains the preset load and the power distribution system topological structure sent by the data acquisition module, each node in the power distribution system topological structure is ordered according to the size of the preset load, so that the node preset load degree sequence is obtained. And determining a preset maximum load node according to the node preset load degree sequence, and summarizing the node preset load degree sequence to obtain total preset load consumption. And packaging the obtained total preset load consumption and the preset maximum load node, and sending the obtained total preset load consumption and the preset maximum load node to the stability evaluation module as second calculation result data.
Optionally, the stability evaluation module includes a first evaluation determination unit, a second evaluation determination unit, a third evaluation determination unit, and a stability determination unit, wherein:
the first evaluation determining unit is used for determining a first evaluation result according to the preset load and the actual load of each node and sending the first evaluation result to the stability determining unit; the first evaluation result comprises difference parameters of actual loads and preset loads of all nodes in the power distribution system;
the second evaluation determining unit is used for determining a second evaluation result according to the total actual load and the total preset load and sending the second evaluation result to the stability determining unit; the second evaluation result comprises a difference parameter of the total actual load and the total preset load of the power distribution system;
the third evaluation determining unit is used for determining a third evaluation result according to the preset actual maximum load node and the actual maximum load node and sending the third evaluation result to the stability determining unit; the third evaluation result comprises a difference parameter between a preset load of a preset actual maximum load node and an actual load of the actual maximum load node;
and the stability determining unit is used for determining the evaluation result of the stability of the power distribution system according to the first evaluation result, the second evaluation result and the third evaluation result.
After the stability evaluation module receives the first calculation result data sent by the first calculation module, the second calculation result data sent by the second calculation module and the power distribution data sent by the data acquisition module, the first evaluation determination unit is used for judging whether the preset load and the actual load of each node are the same or not, and the judgment result is used as a first evaluation result.
And judging whether the total actual load and the total preset load are the same or not through a second evaluation determining unit, and taking the judging result as a second evaluation result.
And judging whether the preset actual maximum load node is the same as the actual maximum load node or not through a third evaluation determining unit, and taking the judgment result as a third evaluation result.
And integrating the first evaluation result, the second evaluation result and the third evaluation result to serve as an evaluation result of the stability of the power distribution system.
Optionally, the first evaluation determination unit includes a node error determination subunit and a first evaluation generation subunit, wherein:
the node error determining subunit is used for determining the node error rate of each node according to the preset load and the actual load of each node and sending the node error rate to the first evaluation generating subunit;
and the first evaluation generating subunit is used for determining that the node has load abnormality if the node error rate is greater than a first threshold value, and sending the node error rate as a first evaluation result to the stability determining unit.
The node error rate may be a ratio describing the actual load exceeding the preset load.
After the first evaluation determining unit receives the preset load and the actual load of each node, it is first determined whether the actual load exceeds the preset load.
If the preset load is exceeded, the node error rate of the node is calculated, and the determined node error rate is sent to the first evaluation generation subunit. If the node error rate is greater than the first threshold, it is determined that there is a load abnormality for the node, and the node error rate is sent to the stability determination unit as a first evaluation result.
Optionally, if the preset load is not exceeded, a null value or a node load security identifier is assigned to the first evaluation result. The node load safety identifier is used for identifying that the actual load of the node is smaller than a preset load.
Optionally, the second evaluation determination unit comprises a systematic error determination subunit and a second evaluation generation subunit, wherein:
the system error determining subunit is used for determining the total error rate of the power distribution system according to the total actual load and the total preset load and transmitting the total error rate of the power distribution system to the second evaluation generating subunit;
and the second evaluation generating subunit is used for determining that the power distribution system has load abnormality if the total error rate of the power distribution system is larger than a second threshold value, and sending the total error rate of the power distribution system to the stability determining unit as a second evaluation result.
The overall error rate of the power distribution system may be used to describe the extent to which the overall actual load in the power distribution system exceeds the overall preset load.
After the second evaluation determining unit receives the total actual load and the total preset load of each node, it is first determined whether the total actual load exceeds the total preset load.
If the total preset load is exceeded, calculating the total error rate of the power distribution system, and sending the determined total error rate of the power distribution system to the second evaluation generation subunit. If the total error rate of the power distribution system is larger than a second threshold value, determining that the power distribution system has load abnormality, and sending the total error rate of the power distribution system to the stability determining unit as a second evaluation result.
Optionally, the third evaluation determination unit is specifically configured to:
if the preset maximum load node is different from the actual maximum load node, taking the error rate of the preset load of the preset maximum load node and the actual load of the actual maximum load node as a third evaluation result, and sending the third evaluation result to the stability determining unit.
According to the technical scheme provided by the embodiment of the invention, the stability of the power distribution system in the target detection area is evaluated through the data acquisition module, the first calculation module, the second calculation module and the stability evaluation module, so that the parallel processing of the evaluation process is realized, the calculation pressure of the calculation module is reduced, and meanwhile, the accurate evaluation of the stability of the power distribution system can be still realized.
Example two
Fig. 2 is a flowchart of a method for evaluating stability of a power distribution system according to an embodiment of the present invention, where the method is applicable to a situation where the power distribution system has a low evaluation speed and the evaluation process is calculated by a single processor. The method may be performed by an evaluation system of the stability of a power distribution system, which may be implemented in hardware and/or software, which is configurable in an electronic device having data processing capabilities. As shown in fig. 2, the method for evaluating the stability of the power distribution system of the present embodiment may include the following steps:
s210, acquiring power distribution data of a power distribution system in a target detection area; the power distribution data at least comprises a power distribution system topological structure, actual loads of all nodes in the power distribution system topological structure and preset loads.
S220, determining first calculation result data in the power distribution system according to the actual load and the topological structure of the power distribution system; wherein the first calculation result data at least comprises the total actual load of the power distribution system and the maximum load node.
In an alternative, determining the first calculation result data in the power distribution system according to the actual load and the topology structure of the power distribution system may include steps A1-A3:
and A1, determining the actual load sequence of each node according to the actual load and the topological structure of the power distribution system.
And A2, determining an actual maximum load node according to the actual load sequence.
And A3, determining the total actual load according to the actual load.
S230, determining second calculation result data in the power distribution system according to the preset load and the power distribution system topological structure; the second calculation result data at least comprises a total preset load and a preset maximum load node of the power distribution system.
In an alternative, determining the second calculation result data in the power distribution system according to the preset load and the topology structure of the power distribution system may include steps B1-B3:
and B1, determining a node preset load degree sequence according to the preset load and the topological structure of the power distribution system.
And B2, determining a preset maximum load node according to the node load degree sequence.
And B3, summarizing the preset loads to obtain the total preset load.
S240, determining an evaluation result of the stability of the power distribution system according to the first calculation result, the second calculation result and the power distribution data.
In an alternative, determining the evaluation result of the stability of the power distribution system according to the first calculation result, the second calculation result and the power distribution data may include steps C1-C4:
and C1, determining a first evaluation result according to the preset load and the actual load of each node.
And C2, determining a second evaluation result according to the total actual load and the total preset load.
And C3, determining a third evaluation result according to the preset actual maximum load node and the actual maximum load node.
And C4, determining an evaluation result of the stability of the power distribution system according to the first evaluation result, the second evaluation result and the third evaluation result.
In an alternative, determining the first evaluation result according to the preset load and the actual load of each node may include steps C11-C12:
and C11, determining the node error rate of each node according to the preset load and the actual load of each node.
And C12, if the node error rate is greater than a first threshold value, determining that the node has load abnormality, and taking the node error rate as a first evaluation result.
In an alternative, determining the second evaluation result according to the total actual load and the total preset load may comprise the steps of C21-C22:
and C21, determining the total error rate of the power distribution system according to the total actual load and the total preset load.
And step C22, if the total error rate of the power distribution system is greater than a second threshold value, determining that the load abnormality exists in the power distribution system, and taking the total error rate of the power distribution system as a second evaluation result.
In an alternative, determining the third evaluation result according to the preset actual maximum load node and the actual maximum load node includes:
and if the preset maximum load node is different from the actual maximum load node, taking the error rate of the preset load of the preset maximum load node and the actual load of the actual maximum load node as a third evaluation result.
According to the technical scheme of the embodiment of the invention, the first calculation result data in the distribution system is determined according to the actual load and the distribution system topological structure by acquiring the distribution data of the distribution system in the target detection area, the second calculation result data in the distribution system is determined according to the preset load and the distribution system topological structure, and finally the evaluation result of the stability of the distribution system is determined according to the first calculation result, the second calculation result and the distribution data, so that the calculation efficiency of the calculation result of the distribution system is improved, the accuracy of the evaluation result is ensured, and the calculation rate is accelerated by parallel processing of calculation.
Example III
Fig. 3 shows a schematic diagram of the structure of an electronic device 10 that may be used to implement an embodiment of the invention. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. Electronic equipment may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.
As shown in fig. 3, the electronic device 10 includes at least one processor 11, and a memory, such as a Read Only Memory (ROM) 12, a Random Access Memory (RAM) 13, etc., communicatively connected to the at least one processor 11, in which the memory stores a computer program executable by the at least one processor, and the processor 11 may perform various appropriate actions and processes according to the computer program stored in the Read Only Memory (ROM) 12 or the computer program loaded from the storage unit 18 into the Random Access Memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 may also be stored. The processor 11, the ROM 12 and the RAM 13 are connected to each other via a bus 14. An input/output (I/O) interface 15 is also connected to bus 14.
Various components in the electronic device 10 are connected to the I/O interface 15, including: an input unit 16 such as a keyboard, a mouse, etc.; an output unit 17 such as various types of displays, speakers, and the like; a storage unit 18 such as a magnetic disk, an optical disk, or the like; and a communication unit 19 such as a network card, modem, wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunication networks.
The processor 11 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various processors running machine learning model algorithms, digital Signal Processors (DSPs), and any suitable processor, controller, microcontroller, etc. The processor 11 performs the various methods and processes described above, such as the method of evaluating the stability of the power distribution system.
In some embodiments, the method of assessing stability of a power distribution system may be implemented as a computer program tangibly embodied on a computer readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 10 via the ROM 12 and/or the communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the above-described method of evaluating the stability of a power distribution system may be performed. Alternatively, in other embodiments, the processor 11 may be configured to perform the method of evaluating the stability of the power distribution system in any other suitable manner (e.g., by means of firmware).
Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application Specific Standard Products (ASSPs), systems On Chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.
A computer program for carrying out methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/acts specified in the flowchart and/or block diagram block or blocks to be implemented. The computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
In the context of the present invention, a computer-readable storage medium may be a tangible medium that can contain, or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, the computer readable storage medium may be a machine readable signal medium. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) through which a user can provide input to the electronic device. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.
The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.
The computing system may include clients and servers. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service are overcome.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides an evaluation system of distribution system stability, its characterized in that includes data acquisition module, first calculation module, second calculation module and stability evaluation module, wherein:
the data acquisition module is used for acquiring power distribution data of a power distribution system in a target detection area and respectively transmitting the power distribution data to the first calculation module, the second calculation module and the stability evaluation module; the power distribution data at least comprises a power distribution system topological structure, actual loads of all nodes in the power distribution system topological structure and preset loads;
the first calculation module is used for determining first calculation result data in the power distribution system according to the actual load and the power distribution system topological structure, and sending the first calculation result data to the stability evaluation module; wherein the first calculation result data at least comprises a total actual load and an actual maximum load node of the power distribution system;
the second calculation module is used for determining second calculation result data in the power distribution system according to the preset load and the power distribution system topological structure, and sending the second calculation result data to the stability evaluation module; the second calculation result data at least comprises a total preset load and a preset maximum load node of the power distribution system;
the stability evaluation module is used for determining an evaluation result of the stability of the power distribution system according to the first calculation result data, the second calculation result and the power distribution data.
2. The system of claim 1, wherein the first computing module comprises an actual order determination unit, a maximum node determination unit, and a total load determination unit, wherein:
the actual sequence determining unit is used for determining the actual load sequence of each node according to the actual load and the power distribution system topological structure, and sending the actual load sequence to the maximum node determining unit;
the maximum node determining unit is used for determining the actual maximum load node according to the actual load sequence and sending the actual maximum load node to the stability evaluation module;
the total load determining unit is configured to determine the total actual load according to the actual load, and send the total actual load to the stability evaluation module.
3. The system of claim 1, wherein the second computing module comprises a load order determination unit, a preset node determination unit, a preset total voltage determination unit, and a preset voltage determination unit, wherein:
the load sequence determining unit is used for determining a node preset load degree sequence according to the preset load and the power distribution system topological structure, and sending the node preset load degree sequence to the preset node determining unit;
the preset node determining unit is used for determining a preset maximum load node according to the node load degree sequence and sending the preset maximum load node to the stability evaluation module;
the total preset load determining unit is configured to aggregate the preset loads to obtain the total preset load, and send the total preset load to the stability evaluation module.
4. The system of claim 1, wherein the stability assessment module comprises a first assessment determination unit, a second assessment determination unit, a third assessment determination unit, and a stability determination unit, wherein:
the first evaluation determining unit is configured to determine a first evaluation result according to the preset load and the actual load of each node, and send the first evaluation result to the stability determining unit; the first evaluation result comprises a difference parameter between the actual load and the preset load of each node in the power distribution system;
the second evaluation determining unit is used for determining a second evaluation result according to the total actual load and the total preset load and sending the second evaluation result to the stability determining unit; wherein the second evaluation result comprises a difference parameter between the total actual load and the total preset load of the power distribution system;
the third evaluation determining unit is configured to determine a third evaluation result according to the preset actual maximum load node and the actual maximum load node, and send the third evaluation result to the stability determining unit; the third evaluation result comprises a difference parameter of the preset load of the preset actual maximum load node and the actual load of the actual maximum load node;
the stability determining unit is configured to determine the evaluation result of the stability of the power distribution system according to the first evaluation result, the second evaluation result, and the third evaluation result.
5. The system of claim 4, wherein the first assessment determination unit comprises a node error determination subunit and a first assessment generation subunit, wherein:
the node error determining subunit is configured to determine a node error rate of each node according to the preset load and the actual load of each node, and send the node error rate to the first evaluation generating subunit;
and the first evaluation generating subunit is configured to determine that the node has a load abnormality if the node error rate is greater than a first threshold, and send the node error rate as the first evaluation result to the stability determining unit.
6. The system of claim 4, wherein the second assessment determination unit comprises a systematic error determination subunit and a second assessment generation subunit, wherein:
the system error determining subunit is configured to determine a total error rate of the power distribution system according to the total actual load and the total preset load, and send the total error rate of the power distribution system to the second evaluation generating subunit;
and the second evaluation generating subunit is configured to determine that a load abnormality exists in the power distribution system if the total error rate of the power distribution system is greater than a second threshold, and send the total error rate of the power distribution system as the second evaluation result to the stability determining unit.
7. The system according to claim 4, wherein the third evaluation determination unit is specifically configured to:
and if the preset maximum load node is different from the actual maximum load node, taking the error rate of the preset load of the preset maximum load node and the actual load of the actual maximum load node as the third evaluation result, and sending the third evaluation result to the stability determining unit.
8. A method of evaluating stability of a power distribution system, comprising:
acquiring power distribution data of a power distribution system in a target detection area; the power distribution data at least comprises a power distribution system topological structure, actual loads of all nodes in the power distribution system topological structure and preset loads;
determining first calculation result data in the power distribution system according to the actual load and the power distribution system topological structure; the first calculation result data at least comprises total actual load and maximum load nodes of the power distribution system;
determining second calculation result data in the power distribution system according to the preset load and the power distribution system topological structure; the second calculation result data at least comprises a total preset load and a preset maximum load node of the power distribution system;
and determining an evaluation result of the stability of the power distribution system according to the first calculation result, the second calculation result and the power distribution data.
9. An electronic device, the electronic device comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein,
the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the power distribution system stability assessment system of any one of claims 1-7.
10. A computer readable storage medium storing computer instructions for causing a processor to execute the assessment system for the stability of the power distribution system of any one of claims 1-7.
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|---|---|---|---|
| CN202311437956.3A CN117477543A (en) | 2023-10-31 | 2023-10-31 | Power distribution system stability evaluation system, method and electronic equipment |
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| CN202311437956.3A CN117477543A (en) | 2023-10-31 | 2023-10-31 | Power distribution system stability evaluation system, method and electronic equipment |
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