CN115149637A - Intelligent operation and maintenance method, operation and maintenance, monitoring system and medium for power distribution network - Google Patents
Intelligent operation and maintenance method, operation and maintenance, monitoring system and medium for power distribution network Download PDFInfo
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- CN115149637A CN115149637A CN202210666554.XA CN202210666554A CN115149637A CN 115149637 A CN115149637 A CN 115149637A CN 202210666554 A CN202210666554 A CN 202210666554A CN 115149637 A CN115149637 A CN 115149637A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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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
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Abstract
The invention discloses an intelligent operation and maintenance method, an operation and maintenance monitoring system and a medium for a power distribution network, and relates to the field of Internet of things. The method comprises the following steps: the method comprises the steps of monitoring and collecting state information of the power distribution network, evaluating and predicting the health state of the power distribution network according to the state information and historical operation information, generating and displaying a corresponding operation and maintenance work order according to the evaluation and prediction result, and actively overhauling the power distribution network according to the operation and maintenance work order.
Description
Technical Field
The invention relates to the field of Internet of things, in particular to an intelligent operation and maintenance method, an operation and maintenance monitoring system and a medium for a power distribution network.
Background
The automation degree of the distribution network in China is uneven, a plurality of operation and management systems are parallel, and the overhaul of the power distribution system is mainly divided into manual inspection and regular preventive tests. At present, some serious problems still exist in the operation process of the power distribution network, and the power supply quality and the operation efficiency of the power distribution network are influenced.
The problems that a plurality of monitoring systems exist in the operation of the conventional power distribution network, information among the systems cannot be shared, the efficiency is low, the defects of primary equipment and the primary system cannot be found in time and accurately judged, so that equipment in an unhealthy state cannot be arranged and processed effectively in time, and the potential safety hazard problem of fault expansion exists.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides an intelligent operation and maintenance method, an operation and maintenance and monitoring system and a medium for a power distribution network.
The technical scheme for solving the technical problems is as follows:
an intelligent operation and maintenance method for a power distribution network comprises the following steps:
monitoring and collecting state information of the power distribution network;
evaluating and predicting the health state of the power distribution network according to the state information and the historical operation information;
generating and displaying a corresponding operation and maintenance work order according to the evaluation and prediction results;
and actively overhauling the power distribution network according to the operation and maintenance work order.
The invention has the beneficial effects that: according to the scheme, the data such as the basic information, the operation information and the operation historical information of the power distribution network and the equipment are collected, intelligent comprehensive study and judgment analysis is carried out, the current health state of the power distribution network and the equipment is evaluated and judged, the future development trend is predicted, grading and hidden danger risk judgment are carried out aiming at the abnormity, a targeted active maintenance plan is provided, and the online evaluation and active maintenance of the equipment state of the power distribution network are realized.
Further, still include:
the intelligent monitoring terminal carries out first judgment, the Internet of things operation and maintenance gateway carries out second judgment, and the intelligent operation and maintenance master station carries out third judgment;
and judging whether the state information fails according to the judgment results of the three times, and sending out early warning when the state information fails.
The beneficial effect of adopting the further scheme is that: according to the scheme, through on-site calculation and execution, system faults and abnormity in the area are rapidly identified and early warning is given, unnecessary data transmission is reduced, data transmission amount is reduced, the fault condition can be comprehensively judged through real-time tracking analysis of the cloud service platform and the intelligent operation and maintenance main station in a coordinated mode, the operation and maintenance work order is automatically generated, and the fault first-aid repair efficiency and the service level are improved.
Further, still include:
converting the state information into CIM model data to obtain converted state information;
the evaluating and predicting the health state of the power distribution network according to the state information and the historical operation information specifically comprises the following steps:
and evaluating and predicting the health state of the power distribution network according to the converted state information and the historical operation information.
The beneficial effect of adopting the above further scheme is: according to the scheme, the comprehensive information fusion and information sharing are realized by applying a CIM unified model of the power distribution network and a general standard protocol of the Internet of things, and a foundation is established for mining big data.
Further, the state information includes: operating data and environmental status data of a plurality of preset devices;
the plurality of preset devices include: at least one of a cable, a transformer, a circuit breaker and a charging pile.
The beneficial effect of adopting the further scheme is that: according to the scheme, the comprehensive real-time state monitoring of the power distribution network is realized, the operation evaluation, the health evaluation, the accident early warning, the risk evaluation and the maintenance decision are realized, the power failure time is effectively reduced, the reliability and the availability coefficient of equipment are improved, the service life of the equipment is prolonged, the maintenance and maintenance cost is reduced, the performance and the economic benefit of the equipment are improved, and the operation efficiency of the power distribution network is improved.
Further, still include:
the method comprises the following steps that collection terminals are assembled at box transformer substation nodes, power distribution room nodes, switching station nodes, ring main unit nodes, cable well nodes, photovoltaic station nodes and charging pile nodes under a power distribution network;
the monitoring and collecting state information of the power distribution network specifically comprises the following steps:
and monitoring and acquiring the state information of the power distribution network through the acquisition terminal.
The beneficial effect of adopting the above further scheme is: this scheme is through becoming, the room is joined in marriage to the case, the switch station, looped netowrk cabinet, cable shaft, photovoltaic station, fill nodes such as electric pile and install intelligent acquisition terminal and thing allies oneself with fortune dimension gateway additional, to information comprehensive collection such as operating condition, equipment state, environmental condition, safety protection of distribution network, realizes the comprehensive perception of distribution network state, realizes distribution network primary equipment, the real-time on-line monitoring of primary system running state.
Another technical solution of the present invention for solving the above technical problems is as follows:
an intelligent operation and maintenance system of a power distribution network, comprising: the system comprises a monitoring module, an evaluation and prediction module, an operation and maintenance work order generation module and a maintenance module;
the monitoring module is used for monitoring and acquiring state information of the power distribution network;
the evaluation and prediction module is used for evaluating and predicting the health state of the power distribution network according to the state information and combining historical operation information;
the operation and maintenance work order generation module is used for generating and displaying a corresponding operation and maintenance work order according to the evaluation and prediction result;
and the overhaul module is used for actively overhauling the power distribution network according to the operation and maintenance work order.
The beneficial effects of the invention are: according to the scheme, the data such as the basic information, the operation information and the operation historical information of the power distribution network and the equipment are collected, intelligent comprehensive study and judgment analysis is carried out, the current health state of the power distribution network and the equipment is evaluated and judged, the future development trend is predicted, grading and hidden danger risk judgment are carried out aiming at the abnormity, a targeted active maintenance plan is provided, and the online evaluation and active maintenance of the equipment state of the power distribution network are realized.
Further, still include: the fault early warning module is used for carrying out first judgment on the intelligent monitoring terminal, carrying out second judgment on the Internet of things operation and maintenance gateway and carrying out third judgment on the intelligent operation and maintenance master station;
and judging whether the state information fails according to the judgment results of the three times, and sending out early warning when the state information fails. The beneficial effect of adopting the further scheme is that: according to the scheme, through on-site calculation and execution, system faults and abnormity in the area are rapidly identified and early warning is given, unnecessary data transmission is reduced, data transmission amount is reduced, the fault condition can be comprehensively judged through real-time tracking analysis of the cloud service platform and the intelligent operation and maintenance main station in a coordinated mode, the operation and maintenance work order is automatically generated, and the fault first-aid repair efficiency and the service level are improved.
The conversion module is used for converting the state information into CIM model data to obtain converted state information;
the evaluation and prediction module is specifically used for evaluating and predicting the health state of the power distribution network according to the converted state information and combining historical operation information.
The beneficial effect of adopting the further scheme is that: according to the scheme, the comprehensive information fusion and information sharing are realized by applying a CIM unified model of the power distribution network and a general standard protocol of the Internet of things, and a foundation is established for mining big data.
Further, the status information includes: operating data and environmental status data of a plurality of preset devices;
the plurality of preset devices include: at least one of a cable, a transformer, a circuit breaker and a charging pile.
The beneficial effect of adopting the further scheme is that: according to the scheme, the comprehensive real-time state monitoring of the power distribution network is realized, the operation evaluation, the health evaluation, the accident early warning, the risk evaluation and the maintenance decision are realized, the power failure time is effectively reduced, the reliability and the availability coefficient of equipment are improved, the service life of the equipment is prolonged, the maintenance and maintenance cost is reduced, the performance and the economic benefit of the equipment are improved, and the operation efficiency of the power distribution network is improved.
Further, still include: the method comprises the following steps that an acquisition terminal and an Internet of things operation and maintenance gateway are assembled on box transformer substation nodes, power distribution room nodes, switch station nodes, ring main unit nodes, cable well nodes, photovoltaic station nodes and charging pile nodes under a power distribution network;
the monitoring module is specifically used for monitoring and acquiring the state information of the power distribution network through the acquisition terminal.
The beneficial effect of adopting the above further scheme is: this scheme is through becoming, the room is joined in marriage to the case, the switch station, looped netowrk cabinet, cable shaft, photovoltaic station, fill nodes such as electric pile and install intelligent acquisition terminal and thing allies oneself with fortune dimension gateway additional, to information comprehensive collection such as operating condition, equipment state, environmental condition, safety protection of distribution network, realizes the comprehensive perception of distribution network state, realizes distribution network primary equipment, the real-time on-line monitoring of primary system running state.
Another technical solution of the present invention for solving the above technical problems is as follows:
an operation and maintenance system comprising: adopt the intelligent operation and maintenance system of distribution network of any above-mentioned scheme.
Another technical solution of the present invention for solving the above technical problems is as follows:
a storage medium, where instructions are stored, and when the instructions are read by a computer, the computer is caused to execute an intelligent operation and maintenance method for a power distribution network according to any one of the above solutions.
An intelligent monitoring system for a power distribution network, comprising:
a memory for storing a computer program;
and the processor is used for executing the computer program to realize the intelligent operation and maintenance method of the power distribution network according to any scheme.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic flowchart of an intelligent operation and maintenance method for a power distribution network according to an embodiment of the present invention;
fig. 2 is a structural block diagram of an intelligent operation and maintenance system of a power distribution network according to an embodiment of the present invention;
fig. 3 is a structural block diagram of an intelligent operation and maintenance system of a power distribution network based on the internet of things, provided by an embodiment of the invention;
fig. 4 is a connection diagram of the internet of things operation and maintenance gateway, the intelligent monitoring terminal and the electric power internet of things sensor provided by the embodiment of the invention;
fig. 5 is a functional block diagram of a system according to another embodiment of the present invention.
Detailed Description
The principles and features of the present invention will be described with reference to the following drawings, which are illustrative only and are not intended to limit the scope of the invention.
As shown in fig. 1, the intelligent operation and maintenance method for a power distribution network provided in the embodiment of the present invention includes:
s1, monitoring and collecting state information of a power distribution network; wherein the state information includes: operating data and environmental status data of a plurality of preset devices; the plurality of preset devices include: at least one primary device of a cable, a transformer, a breaker and a charging pile; the operation data of the plurality of preset devices may include: operating data of cables, transformers, circuit breakers, capacitors, reactors, charging piles, etc.; the environmental status data may include: environmental data: ambient temperature and humidity, water level, smoke state, immersion state, room door state, etc.; video monitoring data: data such as switch position state, operation lamp state, personnel state and the like;
in a certain embodiment, the intelligent monitoring terminal can be placed in the primary equipment cabinet body to collect data information such as the operation condition, the equipment state and the environmental condition of primary equipment and a system of the power distribution network.
S2, evaluating and predicting the health state of the power distribution network according to the state information and the historical operation information;
in one embodiment, the method may include: the cloud service platform and the intelligent operation and maintenance master station are used for carrying out intelligent comprehensive study and judgment analysis on data such as basic information, operation historical information and the like of the power distribution network and equipment, evaluating and judging the current health state of the power distribution network and equipment, predicting future development trend, carrying out grading rating and hidden danger risk judgment on abnormity, providing a targeted active maintenance plan, and realizing online evaluation and pre-maintenance of the state of the power distribution network equipment. The operation history information may include: the voltage electric current value, the switching value, the temperature value, the partial discharge value, the environment temperature value, the weather value and the like of primary equipment at a certain time are judged by adopting a transverse comparison method and a longitudinal comparison method. And transverse comparison is carried out, and the temperature difference is overlarge when the temperature values of ABC three phases are compared pairwise at a certain moment, so that the equipment abnormality can be judged. And longitudinally comparing, wherein the ABC three-phase temperature of the current value and the historical ABC three-phase temperature of the same current value are correspondingly compared to be overlarge in temperature difference, so that the abnormality of the equipment can be judged.
S3, generating and displaying a corresponding operation and maintenance work order according to the evaluation and prediction results;
and S4, actively overhauling the power distribution network according to the operation and maintenance work order. Wherein, the active overhaul can include: and (4) performing one-to-one troubleshooting, mining and eliminating potential faults according to the items in the operation and maintenance work order.
According to the scheme, the basic information, the operation history information and other data of the power distribution network and the equipment are collected, intelligent comprehensive study and judgment analysis is carried out, the current health states of the power distribution network and the equipment are evaluated and judged, the future development trend is predicted, grading and hidden danger risk judgment are carried out aiming at the abnormity, a targeted active maintenance plan is provided, and the online evaluation and active maintenance of the equipment state of the power distribution network are realized.
Preferably, in any of the above embodiments, further comprising:
the intelligent monitoring terminal carries out first judgment, the Internet of things operation and maintenance gateway carries out second judgment, and the intelligent operation and maintenance master station carries out third judgment;
and judging whether the state information fails according to the judgment results of the three times, and sending out early warning when the state information fails.
In another embodiment, data information of operation conditions, equipment states, environmental conditions and the like of primary equipment and a system of the power distribution network is collected, the data information is processed on site, conditions of the primary equipment and the system of the power distribution network are judged for the first time, faults and abnormal states of the system equipment are identified, event SOE, event reports and waveform records are formed, the things-tie operation and maintenance gateway is informed to process the event SOE, the event reports and the waveform records, and the intelligent monitoring terminal also periodically stores monitoring information at the whole time for the things-tie operation and maintenance gateway to call.
According to the scheme, through on-site calculation and execution, system faults and abnormity in the area are rapidly identified and early warning is given, unnecessary data transmission is reduced, data transmission amount is reduced, the fault condition can be comprehensively judged through real-time tracking analysis of the cloud service platform and the intelligent operation and maintenance main station in a coordinated mode, the operation and maintenance work order is automatically generated, and the fault first-aid repair efficiency and the service level are improved.
Preferably, in any of the above embodiments, further comprising:
converting the state information into CIM model data to obtain converted state information; wherein, CIM is short for Common Information Model, meaning Common Information Model. CIM is an abstract model that describes all the major objects of a power enterprise, particularly those related to power operation.
In another embodiment, may include: the IOT gateway obtains a CIM model in the gateway range from the cloud service platform, converts the information data obtained by the gateway from the intelligent monitoring terminal into CIM model data according to a 61850 electric power IOT sensor model stored in the gateway, and uploads the CIM model data to the cloud service platform.
The evaluating and predicting the health state of the power distribution network according to the state information and the historical operation information specifically comprises the following steps:
and evaluating and predicting the health state of the power distribution network according to the converted state information and the historical operation information.
According to the scheme, the comprehensive information fusion and information sharing are realized by applying a CIM unified model of the power distribution network and a general standard protocol of the Internet of things, and a foundation is established for mining big data.
Preferably, in any of the above embodiments, the status information includes: operating data and environmental status data of a plurality of preset devices;
the plurality of preset devices include: at least one of a cable, a transformer, a circuit breaker and a charging pile.
According to the scheme, the comprehensive real-time state monitoring of the power distribution network is realized, the operation evaluation, the health evaluation, the accident early warning, the risk evaluation and the maintenance decision are realized, the power failure time is effectively reduced, the reliability and the availability coefficient of equipment are improved, the service life of the equipment is prolonged, the maintenance and maintenance cost is reduced, the performance and the economic benefit of the equipment are improved, and the operation efficiency of the power distribution network is improved.
Preferably, in any of the above embodiments, further comprising:
the method comprises the following steps that an acquisition terminal and an Internet of things operation and maintenance gateway are assembled on a box transformer substation node, a power distribution room node, a switch station node, a ring main unit node, a cable well node, a photovoltaic station node and a charging pile node under a power distribution network;
the monitoring and collecting state information of the power distribution network specifically comprises the following steps:
and monitoring and acquiring the state information of the power distribution network through the acquisition terminal.
This scheme is through becoming, distribution room, switching station, looped netowrk cabinet, cable shaft, photovoltaic station, fill electric pile etc. node at the case and install intelligent acquisition terminal additional, to information such as the operating condition of distribution network, equipment status, environmental aspect, safety protection gather comprehensively, realizes the comprehensive perception of distribution network state, realizes distribution network primary equipment, the real-time on-line monitoring of primary system running state.
In a certain embodiment, a distribution network intelligent operation and maintenance system based on the internet of things comprises an intelligent monitoring terminal, an internet of things operation and maintenance gateway, a cloud service platform and an intelligent operation and maintenance master station. The intelligent monitoring terminal is connected with the Internet of things operation and maintenance gateway through a wireless network, the Internet of things operation and maintenance gateway is connected with the cloud service platform through a wired or wireless network, and the cloud service platform is connected with the intelligent operation and maintenance master station through a wired or wireless network. Wherein, intelligence fortune dimension master station can include: the intelligent operation and maintenance master station is used for deploying operation and maintenance application, is provided with a WEB server, and displays, browses, operates and other human-computer interactions in a WEB mode at the centralized monitoring end, the workstation end and the mobile terminal. The operation and maintenance application is provided with modules such as an operation overview, comprehensive monitoring, operation evaluation, early warning and warning, an operation and maintenance work order, an automatic report and the like.
The intelligent monitoring terminal is placed in the primary equipment cabinet body, collects data information such as operation conditions, equipment states and environmental conditions of primary equipment and a system of the power distribution network, processes the data information on site, judges the conditions of the primary equipment and the system of the power distribution network for the first time, identifies faults and abnormal states of the system equipment, forms event SOE (service order event), event reports and waveform records, and informs the Internet of things operation and maintenance gateway to process the data information, and the intelligent monitoring terminal also periodically stores monitoring information all the time for the Internet of things operation and maintenance gateway to call. Wherein, the first discrimination may include: temperature, switching on and off mechanism, electrical life, CT saturation, CT virtual connection, CT wire break, PT virtual connection, PT ferromagnetic resonance, instantaneous ground, instantaneous short circuit, permanent ground, permanent short circuit, line break, operational overvoltage, lightning overvoltage, etc. The first judgment is carried out by utilizing information collected by a single intelligent monitoring terminal.
The primary device comprises: cables, transformers, circuit breakers, charging piles, and the like;
the collected data information contains:
primary device data: operating data of cables, transformers, circuit breakers, capacitors, reactors, charging piles, etc.;
environmental data: ambient temperature and humidity, water level, smoke state, immersion state, room door state, etc.;
video monitoring data: data such as switch position state, operation lamp state, personnel state and the like;
the method comprises the steps that one station is placed at one station of the Internet of things operation and maintenance gateway, station information, equipment information in the station and topology information in the station are stored, information at the whole moment provided by each intelligent monitoring terminal is collected and stored periodically, when an event notification sent by the intelligent monitoring terminal is received, event SOE, an event report and waveform records formed by the intelligent monitoring terminal are collected and stored, and primary equipment and a system are judged for the second time by combining currently received comprehensive information sent by the intelligent monitoring terminal to form event SOE, and the event SOE is notified and sent to a cloud service platform for processing; the first judgment comprises temperature, switching-on and switching-off mechanism, electric service life, CT saturation, CT virtual connection, CT disconnection, PT virtual connection, PT ferromagnetic resonance, instantaneous grounding, instantaneous short circuit, permanent grounding, permanent short circuit, circuit disconnection, operation overvoltage, lightning overvoltage, power balance and the like.
The second judgment is carried out by utilizing the information collected by a plurality of intelligent monitoring terminals of one gateway.
The IOT gateway obtains a CIM model in the gateway range from the cloud service platform, converts the information data obtained by the gateway from the intelligent monitoring terminal into CIM model data according to a 61850 electric power IOT sensor model stored in the gateway, and uploads the CIM model data to the cloud service platform.
The cloud service platform is provided with data acquisition and processing, information processing, platform management, remote management, model management and equipment management modules. The cloud service platform collects, stores and processes data information pushed by the Internet of things operation and maintenance gateway in real time, and manages data, models and equipment.
In one embodiment, the data collection and processing may include: protocol parsing, rules engine, and data push. The information processing may include: data access, security authentication, protocol adaptation, data caching, data distribution and data storage.
Platform management may include: user management, authority management and log management;
the remote management may include: upgrading management and maintenance management;
model management may include: model definition, model application, network topology;
the device management may include: device registration and device access.
The intelligent operation and maintenance master station is used for deploying operation and maintenance application, is provided with a WEB server, and displays, browses, operates and other human-computer interactions in a WEB mode at the centralized monitoring end, the workstation end and the mobile terminal. The operation and maintenance application is provided with modules such as an operation overview, comprehensive monitoring, operation evaluation, early warning and warning, an operation and maintenance work order, an automatic report and the like.
In one embodiment, the run overview may include: monitoring an internet of things state, an equipment state, a safety state and an application state;
the integrated monitoring may include: station rooms such as a box transformer substation, a power distribution room, a switch station, a ring main unit, a cable well, a photovoltaic station and a charging pile are monitored comprehensively;
the running evaluation may include: health evaluation and energy efficiency analysis. The health assessment may include: health evaluation of primary equipment, secondary systems and station room environment; energy efficiency analysis is made to include: energy efficiency analysis of primary equipment and a primary system;
the early warning alarm may include: early warning and alarming for system and equipment faults and early warning and alarming for system and equipment abnormity;
the operation and maintenance work order may include: and comprehensively analyzing and automatically generating an operation and maintenance work order. The operation and maintenance work order comprises operation and maintenance units, site names, equipment serial numbers, alarm types, alarm descriptions, event conclusions, work order issuing time, work order states and operation and maintenance personnel.
The operation and maintenance inspection contents comprise appearance inspection, operation parameters, fault inspection and the like
The automatic report can include: and reports are automatically generated at regular time or preset.
The intelligent monitoring terminal and the Internet of things operation and maintenance gateway can be connected through a wireless network, and support transmission modes such as GPRS, 433MHz, 3G and 4G, and support protocols such as MODBUS, coAP and 104;
the Internet of things operation and maintenance gateway and the cloud service platform can be connected in a wireless network, and protocols such as MOTT, UPnP and 104 are supported;
the cloud service platform can adopt a special line, an independent IP and support an HTTP protocol, and is deployed on the Ariiyun, the Huashi cloud or the proprietary cloud, and the WEB server can be deployed locally or on the Ariiyun, the Huashi cloud or the proprietary cloud.
In another embodiment, the primary device data may include voltage, current, temperature, partial discharge, etc. for a cable; the circuit breaker can comprise voltage, current, SF6 density, temperature, partial discharge, micro water, circuit breaker energy storage motor current, stroke, switching-on and switching-off times, electrified operation time, residual electric life, switch disconnecting link position and the like; for transformers may include voltage, current, temperature, partial discharge, etc.; the corresponding capacitor may include voltage, current, temperature, etc.
The stations can comprise box-type transformers, switching stations, power distribution rooms, switching stations, ring network rooms, branch boxes, cable wells, overhead lines, column switches, cable pipe galleries, photovoltaic stations, charging piles and the like; the station information comprises a station name, a station ID, an operation and maintenance unit, an operation and maintenance responsible person, a station type, a region, a manufacturer, a bus type, commissioning time, a final overhaul date and the like; the equipment information in the station is distinguished according to intervals, and comprises interval quantity, interval names, interval types, manufacturers, commissioning time, final overhaul date and the like; the topological information in the station only considers switch intervals, including incoming lines, outgoing lines, subsections, belonging buses and the like.
The primary device adopts an electric power internet of things sensor model, as shown in fig. 4, and may include: the intelligent power distribution system comprises a voltage transformer, a current transformer, a cable trench, a gas medium, a capacitor, a reactor, a leakage switch, a distribution pole switch, a distribution transformer, a ring main unit, a switching station, a charging pile, a switch, a transformer, an inverter, a power environment and an independent sensor, wherein the independent sensor is used for collecting sensors such as temperature, humidity, rainfall, smoke, illumination, a door switch, water logging, partial discharge and the like.
In another embodiment, as shown in fig. 3, an intelligent operation and maintenance system of a power distribution network based on the internet of things is composed of an intelligent monitoring terminal, an internet of things operation and maintenance gateway, a cloud service platform, an intelligent operation and maintenance master station, a centralized monitoring terminal, a workstation terminal and a mobile terminal. The intelligent monitoring terminal is connected with the Internet of things through a 433MHz wireless network, the Internet of things is connected with the cloud service platform through an optical fiber network, and the cloud service platform is connected with the intelligent operation and maintenance master station through an optical fiber network. The Internet of things operation and maintenance gateway 1 is deployed at a ring network room site, and the Internet of things operation and maintenance gateway N is deployed at a power distribution room site.
Intelligent monitoring terminal 1 arranges in the looped netowrk room website and gathers PT interval operation data at the PT interval, and intelligent monitoring terminal 2 arranges in the inlet wire interval, gathers inlet wire interval operation data, and intelligent monitoring terminal 3 arranges in the interval of being qualified for the next round of competitions, gathers the interval operation data of being qualified for the next round of competitions, and intelligent monitoring terminal N arranges in the looped netowrk room, gathers data such as looped netowrk room environment, security protection, video.
Intelligent monitoring terminal 1 arranges at the PT interval in the electricity distribution room website, gather PT interval operation data, intelligent monitoring terminal 2 arranges at the switch interval, gather switch interval operation data, intelligent monitoring terminal 3 arranges at the transformer interval, gather transformer interval operation data, intelligent monitoring terminal 4 arranges at the condenser interval, gather condenser interval operation data, intelligent monitoring terminal N arranges in the electricity distribution room, gather electricity distribution room environment, the security protection, data such as video.
In another embodiment, as shown in fig. 4, the intelligent monitoring terminal can acquire data information such as operating conditions, device states, environments, security, videos and the like of corresponding primary devices and systems through the electric power internet of things sensor, and the data information is sent to the internet of things operation and maintenance gateway, and the internet of things operation and maintenance gateway can also directly acquire the data information such as environments, security, videos and the like through the electric power internet of things sensor.
The intelligent monitoring terminal processes the acquired data information on site, judges the conditions of primary equipment and a system for the first time, identifies the equipment faults and abnormal states of the system, forms event SOE (sequence of event), event reports and waveform records, informs the Internet of things operation and maintenance gateway to process, and periodically stores the monitoring information at the whole time for the Internet of things operation and maintenance gateway to call.
In one embodiment, as shown in fig. 5, the basic functions of the intelligent monitoring terminal include communication, event recording, reporting, value setting, wave recording, warning and self-checking monitoring, the data acquisition function includes ac analog quantity, dc analog quantity, temperature, humidity, and switching quantity, the time synchronization function is wireless, the measurement and calculation functions include current, voltage, power, and temperature and humidity, and the abnormality and fault discrimination functions include temperature, switching on and off mechanism, electrical lifetime, wiring error, CT saturation, CT virtual connection, PT virtual connection, ferromagnetic resonance, PTCT disconnection, excitation inrush current, instantaneous ground, instantaneous short circuit, permanent fault, operation overvoltage, lightning stroke, etc., and the primary device, the primary system, the environment, and the security are monitored.
The looped network room physical distribution operation and maintenance gateway 1 stores looped network room site information, equipment information in a site, topology information in the site, a looped network room physical distribution operation and maintenance gateway N stores power distribution room site information, equipment information in the site and topology information in the site, the looped network room physical distribution operation and maintenance gateway periodically collects and stores the whole-time information provided by each intelligent monitoring terminal, when an event notice sent by the intelligent monitoring terminal is received, event SOE, an event report and waveform records formed by the intelligent monitoring terminal are collected and stored, and by combining the currently received comprehensive information sent by the intelligent monitoring terminal, primary equipment and a system are secondarily distinguished, the event SOE is formed, and the notice is sent to a cloud service platform for processing.
As shown in fig. 5, the gateway for internet of things encrypts, decrypts, stores and forwards data. The basic functions of the gateway for the Internet of things operation and maintenance comprise site information configuration, event recording, reporting, valuing, wave recording, alarming and self-checking monitoring, the communication function of the intelligent acquisition unit supports MODBUS, coAP, 104, 101 and 103 protocols and video streams, and the communication function of the cloud service platform supports MQTT, upnp, 104, 101 and other protocols. The time setting function supports protocol time setting, satellite time setting and IRIG-B time setting. And the gateway for the internet of things operation and maintenance also judges the abnormality of power balance and circuit disconnection in the station. It should be noted that the site information configuration content includes a site name, a type, an address, an IP, a latitude and longitude, a manufacturer, a commissioning date, a device in the site, a topology in the site, an operation and maintenance person in charge, a contact method, and the like. The event records comprise smoke alarm, water immersion alarm, overhigh temperature, door long-term opening alarm of a door, secondary circuit abnormity alarm, cable joint abnormity alarm, partial discharge alarm, overload alarm, overvoltage alarm, power failure of a power grid, humidity alarm, switch mechanism abnormity alarm, instantaneous ground fault, permanent ground fault, power failure of an alternating current power supply, battery abnormity and the like. The report content includes a report time, event information, event parameters, and the like.
The CIM within the gateway range is obtained from the cloud service platform by the Internet of things operation and maintenance gateway data conversion function, the information data obtained from the intelligent monitoring terminal by the gateway is converted into CIM data according to the internally stored 61850 electric power Internet of things sensor model, and the CIM data are uploaded to the cloud service platform.
The cloud service platform and the Internet of things operation and maintenance gateway perform data interaction through an MQTT protocol and process the acquired data and information. Platform management, remote management, model management and equipment management of the cloud service platform are deployed on a WEB server, a WEB mode is adopted, an independent client is not arranged, and man-machine interaction such as display, browsing, operation and the like is performed on a centralized monitoring end in a WEB mode.
The intelligent operation and maintenance master station deployment operation and maintenance application comprises functional modules such as an operation overview, comprehensive monitoring, operation evaluation, early warning, operation and maintenance work order, automatic report forms and the like, is deployed on a WEB server, and displays, browses, operates and the like in a WEB mode at a centralized monitoring end, a workstation end and a mobile terminal. The operation evaluation is carried out in real time according to the current data information, the evaluation is carried out by percentage marking, and the evaluation is carried out by respectively multiplying the relevant factors by the weight in combination with the historical information of maintenance and the historical information of abnormal alarm. The device is used as a basis for replacing, maintaining and repairing the device, enhancing observation and the like.
The operational overview may include:
the site overview may include: the method comprises the following steps of (1) site distribution map, total number of sites and online rate, and total number of equipment and online rate; the video AI may include: identifying the total number of potential safety hazards, the accuracy rate of personnel behavior, the accuracy rate of environmental safety and the accuracy rate of meter identification;
device health may include: identifying the total number of defects, the total number of hidden dangers and the health percentage of equipment, wherein the equipment comprises switches, transformers, capacitors, lines, secondary systems, station and room environments and the like; the total number of the identified defects can be identified according to the electric quantity, the temperature quantity, the partial discharge information and the like.
The alarm information may include: the method comprises the steps of judging the current alarm quantity, the defect alarm quantity, the system alarm quantity and the latest alarm information, wherein the latest alarm information comprises site names, types, alarm types and occurrence time;
the smart power usage may include: deviation prediction, average load rate;
the charging post/photovoltaic may include: accumulating the generated energy, accumulating the charging amount, charging curves and saving carbon tons;
the energy efficiency analysis may include: a power saving potential, a carbon saving potential, and an energy efficiency map;
the operation and maintenance work order may include: inspecting the work order, the total number of the overhaul work orders and the number of incompletions;
the integrated monitoring may include: the system comprises a box transformer substation, a power distribution room, a switch station, a ring main unit, a cable well, a photovoltaic station, a charging pile and other stations for comprehensive monitoring. The comprehensive monitoring content comprises operation and maintenance units, site addresses, site names, site types, manufacturers, commissioning time, latest overhaul time, online states and site details. The site details comprise site information, a site system wiring diagram, a site equipment diagram, a site environment diagram, equipment information and intelligent electricity utilization information.
In one embodiment, as shown in fig. 2, an intelligent operation and maintenance system for a power distribution network includes: the system comprises a monitoring module 1101, an evaluation and prediction module 1102, an operation and maintenance work order generation module 1103 and a maintenance module 1104;
the monitoring module 1101 is configured to monitor and acquire state information of the power distribution network;
the evaluation and prediction module 1102 is configured to evaluate and predict the health state of the power distribution network according to the state information in combination with historical operation information;
the operation and maintenance work order generation module 1103 is configured to generate and display a corresponding operation and maintenance work order according to the evaluation and prediction results;
the overhaul module 1104 is used for actively overhauling the power distribution network according to the operation and maintenance work order.
According to the scheme, the basic information, the operation history information and other data of the power distribution network and the equipment are collected, intelligent comprehensive study and judgment analysis is carried out, the current health states of the power distribution network and the equipment are evaluated and judged, the future development trend is predicted, grading and hidden danger risk judgment are carried out aiming at the abnormity, a targeted active maintenance plan is provided, and the online evaluation and active maintenance of the equipment state of the power distribution network are realized. The operation history information may include a voltage current value, a switching value, a temperature value, a partial discharge value, an environmental temperature value, a weather value, and the like of the primary equipment at a certain time, and is determined by adopting a transverse comparison method and a longitudinal comparison method. And transverse comparison is carried out, and the temperature difference is overlarge when the temperature values of ABC three phases are compared pairwise at a certain moment, so that the equipment abnormality can be judged. And longitudinally comparing, wherein the ABC three-phase temperature of the current value and the historical ABC three-phase temperature of the same current value are correspondingly compared to be overlarge in temperature difference, so that the abnormality of the equipment can be judged.
The health state is evaluated in a percentage marking mode in real time according to current data information, and relevant factors are respectively multiplied by weights to be marked by combining historical overhaul information and historical abnormal alarm information.
Preferably, in any of the above embodiments, further comprising: the fault early warning module is used for carrying out first judgment on the intelligent monitoring terminal, carrying out second judgment on the Internet of things operation and maintenance gateway and carrying out third judgment on the intelligent operation and maintenance master station;
and judging whether the state information fails according to the judgment results of the three times, and sending out early warning when the state information fails.
According to the scheme, local calculation and execution are performed, system faults and abnormity in the area are rapidly identified, early warning is given, unnecessary data transmission is reduced, data transmission amount is reduced, the fault condition can be comprehensively judged through real-time tracking analysis of the cloud service platform and the intelligent operation and maintenance main station in a coordinated mode, an operation and maintenance work order is automatically generated, and the fault first-aid repair efficiency and the service level are improved.
Preferably, in any of the above embodiments, the method further includes a conversion module, configured to convert the state information into CIM model data, and obtain converted state information;
the evaluation and prediction module is specifically used for evaluating and predicting the health state of the power distribution network according to the converted state information and combining historical operation information.
According to the scheme, comprehensive information fusion and information sharing are achieved by applying a CIM unified model of the power distribution network and a general standard protocol of the Internet of things, and a foundation is established for large data mining.
Preferably, in any of the above embodiments, the status information includes: operating data and environmental status data of a plurality of preset devices;
the plurality of preset devices include: at least one of a cable, a transformer, a circuit breaker and a charging pile.
According to the scheme, the comprehensive real-time state monitoring of the power distribution network is realized, the operation evaluation, the health evaluation, the accident early warning, the risk evaluation and the maintenance decision are realized, the power failure time is effectively reduced, the reliability and the availability coefficient of equipment are improved, the service life of the equipment is prolonged, the maintenance and maintenance cost is reduced, the performance and the economic benefit of the equipment are improved, and the operation efficiency of the power distribution network is improved.
Preferably, in any of the above embodiments, further comprising: the method comprises the following steps that collection terminals are assembled on box transformer substation nodes, power distribution room nodes, switch station nodes, ring main unit nodes, cable well nodes, photovoltaic station nodes and charging pile nodes under a power distribution network;
the monitoring module is specifically used for monitoring and acquiring the state information of the power distribution network through the acquisition terminal.
This scheme is through becoming, block electrical room, switch station, looped netowrk cabinet, cable shaft, photovoltaic station, fill electric pile etc. node at the case and install intelligent acquisition terminal additional, to information such as the operating condition of distribution network, equipment state, environmental condition, safety protection comprehensive collection, realizes the comprehensive perception of distribution network state, realizes distribution network primary equipment, the real-time on-line monitoring of primary system running state.
In one embodiment, an operation and maintenance system comprises: adopt the intelligent operation and maintenance system of distribution network of above-mentioned any scheme.
In an embodiment, the storage medium stores instructions, and when the instructions are read by a computer, the computer is caused to execute the intelligent operation and maintenance method for the power distribution network according to any one of the above solutions.
In one embodiment, a power distribution network intelligent monitoring system includes:
a memory for storing a computer program;
and the processor is used for executing the computer program to realize the intelligent operation and maintenance method for the power distribution network according to any scheme.
It is to be understood that some or all of the alternative implementations described above in various embodiments may be included in some embodiments.
It should be noted that the above embodiments are product embodiments corresponding to the previous method embodiments, and for the description of each optional implementation in the product embodiments, reference may be made to corresponding descriptions in the above method embodiments, and details are not described here again.
The reader should understand that in the description of this specification, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described method embodiments are merely illustrative, and for example, the division of steps into only one logical functional division may be implemented in practice in another way, for example, multiple steps may be combined or integrated into another step, or some features may be omitted, or not implemented.
The above method, 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 such understanding, the technical solution of the present invention essentially or partially contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute 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), a magnetic disk, an optical disk, or other various media capable of storing program codes.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An intelligent operation and maintenance method for a power distribution network is characterized by comprising the following steps:
monitoring and collecting state information of the power distribution network;
evaluating and predicting the health state of the power distribution network according to the state information and the historical operation information;
generating and displaying a corresponding operation and maintenance work order according to the evaluation and prediction results;
and actively overhauling the power distribution network according to the operation and maintenance work order.
2. The intelligent operation and maintenance method for the power distribution network according to claim 1, further comprising:
the intelligent operation and maintenance system comprises an intelligent monitoring terminal, an intelligent operation and maintenance master station, an intelligent operation and maintenance gateway and an intelligent operation and maintenance master station, wherein the intelligent monitoring terminal is used for judging for the first time, the Internet of things operation and maintenance gateway is used for judging for the second time, and the intelligent operation and maintenance master station is used for judging for the third time;
and judging whether the state information fails according to the judgment results of the three times, and sending out early warning when the state information fails.
3. The intelligent operation and maintenance method for the power distribution network according to claim 1, further comprising:
converting the state information into CIM model data to obtain converted state information;
the evaluating and predicting the health state of the power distribution network according to the state information and by combining with historical operation information specifically comprises the following steps:
and evaluating and predicting the health state of the power distribution network according to the converted state information and the historical operation information.
4. The method according to claim 1, wherein the state information includes: operating data and environmental status data of a plurality of preset devices;
the plurality of preset devices include: at least one of a cable, a transformer, a circuit breaker and a charging pile.
5. The intelligent operation and maintenance method for the power distribution network according to any one of claims 1 to 4, further comprising:
the method comprises the following steps that an Internet of things operation and maintenance gateway and a collection terminal are assembled on box transformer substation nodes, power distribution room nodes, switch station nodes, ring main unit nodes, cable well nodes, photovoltaic station nodes and charging pile nodes under a power distribution network;
the monitoring and collecting state information of the power distribution network specifically comprises the following steps:
and monitoring and acquiring the state information of the power distribution network through the acquisition terminal.
6. The utility model provides an intelligence operation and maintenance system of distribution network which characterized in that includes: the system comprises a monitoring module, an evaluation and prediction module, an operation and maintenance work order generation module and a maintenance module;
the monitoring module is used for monitoring and acquiring state information of the power distribution network;
the evaluation and prediction module is used for evaluating and predicting the health state of the power distribution network according to the state information and combining historical operation information;
the operation and maintenance work order generation module is used for generating and displaying a corresponding operation and maintenance work order according to the evaluation and prediction results;
and the overhaul module is used for actively overhauling the power distribution network according to the operation and maintenance work order.
7. The intelligent operation and maintenance system for the power distribution network according to claim 6, further comprising: the fault early warning module is used for carrying out first judgment on the intelligent monitoring terminal, carrying out second judgment on the Internet of things operation and maintenance gateway and carrying out third judgment on the intelligent operation and maintenance master station;
and judging whether the state information fails according to the judgment results of the three times, and sending out early warning when the state information fails.
8. An operation and maintenance system, comprising: an intelligent operation and maintenance system using a power distribution network according to any one of claims 1 to 5.
9. A storage medium, wherein instructions are stored in the storage medium, and when the instructions are read by a computer, the instructions cause the computer to execute the intelligent operation and maintenance method for the power distribution network according to any one of claims 1 to 5.
10. The utility model provides a distribution network intelligent monitoring system which characterized in that includes:
a memory for storing a computer program;
a processor for executing the computer program to implement the intelligent operation and maintenance method of the power distribution network according to any one of claims 1 to 5.
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