CN116317117A - Management system of power distribution network - Google Patents

Management system of power distribution network Download PDF

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Publication number
CN116317117A
CN116317117A CN202310135789.0A CN202310135789A CN116317117A CN 116317117 A CN116317117 A CN 116317117A CN 202310135789 A CN202310135789 A CN 202310135789A CN 116317117 A CN116317117 A CN 116317117A
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CN
China
Prior art keywords
power distribution
distribution network
line
power
terminal
Prior art date
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Pending
Application number
CN202310135789.0A
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Chinese (zh)
Inventor
温和龙
孙晓娜
周海林
王彦军
龚英强
王文成
张江涛
申炯超
张文霞
黄海
段晓洁
杨丽华
秦晨
闫晨晨
孙兆
宋航程
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Handan Power Supply Co of State Grid Hebei Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Handan Power Supply Co of State Grid Hebei Electric Power Co Ltd
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Application filed by State Grid Corp of China SGCC, Handan Power Supply Co of State Grid Hebei Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN202310135789.0A priority Critical patent/CN116317117A/en
Publication of CN116317117A publication Critical patent/CN116317117A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit 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
    • H02J13/00002Circuit 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit 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
    • H02J13/00006Circuit 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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00007Circuit 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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit 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
    • H02J13/00006Circuit 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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00016Circuit 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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
    • H02J13/00017Circuit 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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus using optical fiber
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit 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
    • H02J13/00006Circuit 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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00022Circuit 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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit 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
    • H02J13/00032Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00036Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers

Abstract

The application provides a management system of distribution network includes: the power distribution network main station platform, the edge computing terminal, the perception terminal and the communication module, wherein the edge computing terminal monitors each power device of the power distribution network main station by adopting the edge computing technology, so that a plurality of monitoring results are obtained, operation data of each power device are collected, the perception terminal is used for collecting perception data of each power utilization infrastructure in the power distribution network main station, the communication module is respectively in communication connection with the power distribution network main station platform, the edge computing terminal and the perception terminal, and the communication terminal is used for transmitting the operation data of each power device, the monitoring results and the perception data of each power utilization infrastructure in the power distribution network main station to the power distribution network main station platform. The communication terminal can realize the mutual communication of the power distribution network main station platform, the edge computing terminal and the perception terminal, thereby improving the working efficiency of operators.

Description

Management system of power distribution network
Technical Field
The application relates to the technical field of power distribution networks, in particular to a management system of a power distribution network.
Background
With the gradual improvement of living conditions of people, the power supply reliability is also in an increasingly important position. The power industry is a support for urban development, so that the overall progress of cities is severely limited by the lag of the power industry, and the construction of urban distribution networks is also increasingly important. Along with the gradual entry of intellectualization into people's life, bring more convenience for people. In the prior art, the data of the power distribution network are collected manually by operators, and then the operators input the data into the power distribution network after manually collecting the data, so that a great amount of time of the operators is wasted, and therefore, a device for automatically acquiring the data is needed to reduce the workload of the operators.
Disclosure of Invention
The present application has been made in order to solve the above technical problems. The embodiment of the application provides a management system of a power distribution network, which solves the problem that operators rely on to input data to the power distribution network in the prior art.
According to one aspect of the present application, there is provided a management system for a power distribution network, including:
a power distribution network master station platform;
the edge computing terminal monitors each power device of the power distribution network main station by adopting an edge computing technology to obtain a plurality of monitoring results and collect operation data of each power device;
the sensing terminal is used for collecting sensing data of each electricity utilization infrastructure in the power distribution network main station; and
the communication module is respectively in communication connection with the power distribution network master station platform, the edge computing terminal and the perception terminal, and the communication terminal is used for transmitting the operation data of each power device, the monitoring results and the perception data of each power utilization infrastructure in the power distribution network master station to the power distribution network master station platform.
In an embodiment, the communication module includes a remote communication network, where the remote communication network is composed of an optical fiber, a wireless private network and a wireless public network, and the remote communication network is used for communicatively connecting the edge computing terminal and the power distribution network master station platform.
In an embodiment, the communication module includes a core communication network, where the core communication network is composed of 4G technology and broadband power line carriers, and the core communication network is configured to communicatively connect the edge computing terminal and the sensing terminal.
In an embodiment, if the line disconnecting link of the 10kV line in the power distribution network master station platform is greater than or equal to a preset line disconnecting link threshold, the 10k line is set to be any two of the following lines: a target telemetry link, a target remote control link, and a target telemetry signaling link.
In an embodiment, the setting the 10k line is any two of the following lines: the target telemetry link, and the target telemetry link include:
if the number of the user equipment corresponding to the line disconnecting link of the 10kV line is greater than or equal to a preset line disconnecting link threshold value, setting the 10k line as any two of the following lines: a target telemetry link, a target remote control link, and a target telemetry signaling link.
In an embodiment, the power distribution network main station platform comprises a 10kV line state acquisition unit, wherein the 10kV line state acquisition unit is used for acquiring environmental state information of the 10kV line, videos of key parts and temperature and state information of joints of the 10kV line.
In an embodiment, the power distribution network master station platform comprises a station area monitoring unit, wherein the station area monitoring unit is used for collecting voltage and current of the box-type transformer and running state information of the box-type transformer.
In an embodiment, the power distribution grid master station platform comprises a power distribution room system comprising a compiling unit for compiling and analysing the perceived data of each power usage infrastructure in the power distribution grid master station.
In an embodiment, the power distribution room module comprises a monitoring unit for monitoring the operational status of the transformer in the power distribution network master station.
In one embodiment, the electrical room system includes an electrical room environmental collection unit for collecting environmental data of the electrical room.
The application provides a management system of distribution network includes: the power distribution network main station platform, the edge computing terminal, the perception terminal and the communication module, wherein the edge computing terminal monitors each power device of the power distribution network main station by adopting the edge computing technology, so that a plurality of monitoring results are obtained, operation data of each power device are collected, the perception terminal is used for collecting perception data of each power utilization infrastructure in the power distribution network main station, the communication module is respectively in communication connection with the power distribution network main station platform, the edge computing terminal and the perception terminal, and the communication terminal is used for transmitting the operation data of each power device, the monitoring results and the perception data of each power utilization infrastructure in the power distribution network main station to the power distribution network main station platform. The communication terminal can realize the mutual communication of the power distribution network main station platform, the edge computing terminal and the perception terminal, thereby improving the working efficiency of operators.
Drawings
The foregoing and other objects, features and advantages of the present application will become more apparent from the following more particular description of embodiments of the present application, as illustrated in the accompanying drawings. The accompanying drawings are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate the application and not constitute a limitation to the application. In the drawings, like reference numerals generally refer to like parts or steps.
Fig. 1 is a schematic structural diagram of a management system of a power distribution network according to an exemplary embodiment of the present application.
Fig. 2 is a schematic structural diagram of a management system of a power distribution network according to another exemplary embodiment of the present application.
Fig. 3 is a schematic structural diagram of a management system of a power distribution network according to another exemplary embodiment of the present application.
Fig. 4 is a schematic structural diagram of a management system of a power distribution network according to another exemplary embodiment of the present application.
Fig. 5 is a schematic structural diagram of a management system of a power distribution network according to another exemplary embodiment of the present application.
Detailed Description
Hereinafter, example embodiments according to the present application will be described in detail with reference to the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application and not all of the embodiments of the present application, and it should be understood that the present application is not limited by the example embodiments described herein.
Fig. 1 is a schematic structural diagram of a management system of a power distribution network according to an exemplary embodiment of the present application. As shown in fig. 1, the management system of the power distribution network includes: the power distribution network main station platform 11, the edge computing terminal 12, the perception terminal 13 and the communication module 14, the edge computing terminal 12 adopts the edge computing technology to monitor each power equipment of the power distribution network main station, so as to obtain a plurality of monitoring results and collect operation data of each power equipment, the perception terminal 13 is used for collecting perception data of each power utilization infrastructure in the power distribution network main station, the communication module 14 is respectively connected with the power distribution network main station platform 11, the edge computing terminal 12 and the perception terminal communication 13, and the communication terminal 14 is used for transmitting the operation data of each power equipment, the plurality of monitoring results and the perception data of each power utilization infrastructure in the power distribution network main station to the power distribution network main station platform 11.
In the embodiment of the present application, the power distribution network master station platform 11 is a power distribution network system master station platform, and mainly adopts a master station deployed by a provincial company and function development. The edge computing terminal 12 is the center for data aggregation, edge computing, and application integration in the power distribution internet of things border layer. The intelligent integrated device mainly comprises novel DTU, novel FTU, intelligent integrated terminal, edge internet of things gateway and other core devices. The edge computing terminal realizes the full collection and full control of data on the lower side, and interacts key operation data with the main station of the power distribution network in real time on the upper side. The edge computing terminal 12 adopts an edge computing technology, realizes on-line monitoring, intelligent analysis and decision control of the running state of the controlled area on site, and simultaneously supports computation sharing and data interaction with a power distribution network master station.
The sensing terminal 13 is a sensing main body in the power distribution network architecture, and is a foundation for constructing mass data of the power distribution network. The intelligent power consumption infrastructure mainly comprises various types of sensing nodes, such as a secondary fusion on-column breaker, a fault indicator, environment monitoring sensing equipment, electric measurement protection control equipment, a partial discharge sensor, a cable composite sensor, an energy efficiency monitoring terminal, an intelligent breaker, an AI camera and the like. The monitoring result may be a monitoring result generated by each sensor or indicator monitoring its corresponding device. Such as voltage and current.
A fault indicator refers to a device mounted on a power line (overhead lines, cables and busbar) to indicate fault current. Most fault indicators can only distinguish and indicate a short circuit fault by detecting the characteristics of the short circuit current.
The AI camera can be an AI ultra-low light camera, is a deep learning image enhancement algorithm running on a built-in AI chip, realizes obtaining high-definition and high-color guaranteed high-quality snap-shot pictures in the ultra-low light-ray environment at night, and meets 24-hour high-fidelity image clue acquisition expected by a user
The communication module 14 is a remote communication network, a core communication network, and a local communication network, respectively. The remote communication network connects the edge computing terminal with the power distribution network master station through optical fiber, wireless private network, wireless public network and the like. The core communication network mainly meets the communication requirements between the edge computing terminal 12 and the core nodes in the sensing terminal 13, including 4G and broadband power line carriers. The local communication network mainly meets the flexible, efficient and low-power consumption communication requirements between the core node and the end node in the perception terminal 13, and comprises communication modes such as RFID, 485, buses and the like.
Radio Frequency Identification (RFID) is an abbreviation for Radio Frequency Identification. The principle is that the reader and the tag perform non-contact data communication, so as to achieve the aim of identifying the target. The RFID is widely applied, and is typically applied to animal wafers, automobile wafer burglar alarms, access control, parking lot control, production line automation and material management.
The application provides a management system of distribution network includes: the power distribution network main station platform, the edge computing terminal, the perception terminal and the communication module, wherein the edge computing terminal monitors each power device of the power distribution network main station by adopting the edge computing technology, so that a plurality of monitoring results are obtained, operation data of each power device are collected, the perception terminal is used for collecting perception data of each power utilization infrastructure in the power distribution network main station, the communication module is respectively in communication connection with the power distribution network main station platform, the edge computing terminal and the perception terminal, and the communication terminal is used for transmitting the operation data of each power device, the monitoring results and the perception data of each power utilization infrastructure in the power distribution network main station to the power distribution network main station platform. The communication terminal can realize the mutual communication of the power distribution network main station platform, the edge computing terminal and the perception terminal, thereby improving the working efficiency of operators.
Fig. 2 is a schematic structural diagram of a management system of a power distribution network according to another exemplary embodiment of the present application. As shown in fig. 2, the communication module 14 includes a remote communication network 141, where the remote communication network 141 is formed by an optical fiber, a wireless private network, and a wireless public network, and the remote communication network 141 is used to communicatively connect the edge computing terminal 12 and the power distribution network master station platform 11.
Fig. 3 is a schematic structural diagram of a management system of a power distribution network according to another exemplary embodiment of the present application. As shown in fig. 3, the communication module 14 includes a core communication network 142, where the core communication network 142 is formed by a 4G technology and a broadband power line carrier, and the core communication network 142 is used to communicatively connect the edge computing terminal 12 and the sensing terminal 13.
In an embodiment, if the line disconnecting link of the 10kV line in the power distribution network master station platform is greater than or equal to the preset line disconnecting link threshold, the 10k line is set to be any two of the following lines: a target telemetry link, a target remote control link, and a target telemetry signaling link.
In one embodiment, setting the 10k line as the target monitoring line and the target control line or the target monitoring line and the target communication line or the target communication line and the target control line includes: if the number of the user equipment corresponding to the line disconnecting link of the 10kV line is greater than or equal to a preset line disconnecting link threshold value, setting the 10k line as any two of the following lines: a target telemetry link, a target remote control link, and a target telemetry signaling link.
According to the related requirements of the electric power guidelines, the power distribution network master station is reasonably configured according to the power distribution network scale and the application requirements of each region, the power distribution network master station platform is constructed at one time, and the function selection is according to the system capacity requirements. The power distribution station and the cable power distribution device with conditions and operation requirements realize telemetry, remote signaling and remote control, namely a three-remote function, and particularly important load areas can be added with intelligent power distribution room functions such as video, security, on-line monitoring and the like. The cable trunk line outdoor ring main unit is generally configured according to the function of realizing three-remote control, and the cable trunk line outdoor ring main unit is generally configured with the function of installing two-remote control. The switching station and the power distribution room are generally configured according to the function of realizing three remote control.
Telemetry (english name) is a technique for transmitting a close range measurement of an object parameter to a remote measuring station to effect a remote measurement. Telemetry is a novel technology with good integration performance, good tracking performance and remote control performance, and has wide application. The method is a comprehensive technology for transmitting the short-distance measurement value of the object parameter to a long-distance measurement station by using a sensing technology, a communication technology and a data processing technology to realize long-distance measurement. In the satellite remote sensing process, the parameters of satellite operation can be obtained through a remote sensing technology.
The remote signaling refers to the switching value of the remote communication data, such as the on/off state of a breaker or a disconnecting switch, the action/resetting of a protection signal, the input/output of an AGC/AVC function, and the like, and is usually represented by 1 or 2 binary bits.
The remote control technology for remote controlled object consists of operation unit, encoding unit, transmitting unit, channel, receiving unit, decoding unit, executing mechanism, etc. Other aspects may also be extended later, metaphor for something that is not directed to face command but is remotely manipulated.
The power distribution automation planning principle is as follows: class B area (rural area) according to the "three-remote" design, the detailed criteria are as follows:
the distribution node (switching station, ring main unit) of the 10kV line meeting the following requirements is selected as a three-remote point.
(1) According to the principle of three segments of the main line of the distribution network line, the main line is provided with 2 three remote points, and when the main line is longer or the number of nodes is more, the number of the three remote points can be increased by not more than 4 generally.
(2) The node of the important user can obviously improve the power supply reliability.
(3) The node has the capability of fast switching power supply conditions and switching power supply capacity.
(4) And a distribution node with optical fiber laying conditions.
The distribution node (line switch) of the 10kV line meeting the following requirements is selected as a "two-remote point": more than 3 branch knife switches of the transformer. And the number of the line disconnecting link with more user equipment is large. Other locations where it is necessary to improve the accuracy of fault identification.
The communication technology widely adopted at present is as follows:
(1) Communication technology of passive optical fiber private network
Passive optical networks are mainly Ethernet Passive Optical Network (EPON) technology. EPONs employ point-to-multipoint structures, passive optical fiber transmission, to provide a variety of services over ethernet. The method has the characteristics of low cost, high bandwidth, strong expansibility, flexibility, rapidness, service recombination, convenience, complete compatibility with the existing Ethernet and the like.
(2) Industrial Ethernet communication technology
Industrial ethernet technology. The technology is mature, the network protocol is rich, the networking is flexible, and the like. But has the defects of point-to-point structure fiber core resource waste and incapability of resisting multi-point failure. So that it is suitable for the core layer and convergence layer networks of the network.
(3) Distribution line carrier technology
The distribution line carrier realizes the digital communication by taking the medium-voltage distribution network as a transmission medium, and mainly utilizes the existing distribution line to carry out carrier signal transmission, thereby having low investment on communication equipment. The main disadvantage is that the communication rate is low, the communication rate is easily influenced by the change of network and external load, but the relative investment is low, and the electric power resource is utilized.
(4) Wireless private network
The wireless private network communication technology applied in the urban distribution network mainly comprises 230M radio stations, mobitex, wimax, mcWiLL and the like. The system is complex in large-scale networking, and is easy to be interfered by common-frequency signals or generate intermodulation interference. When the 230M communication capability is insufficient in the same-frequency networking, the network efficiency is low. Mobitex, wimax and McWiLL relate to the usage rights issue for dedicated radio bands.
(5) Wireless public network technology
Currently, wireless public network communication mainly comprises GPRS, 3G and the like. The advantages and the disadvantages of the wireless public network are also outstanding, but the overall requirement of power distribution automation cannot be met in the aspects of reliability and safety, and the wireless public network can only be adopted as a non-remote control station in a transitional period. Planning contemplates the use of wireless communication technology at the pole switch.
The distribution automation communication mode in the application adopts an optical fiber communication mode. Fiber-optic communication (Fiber-optic communication), also known as Fiber-optic communication, refers to a way of communicating information using light and optical fibers. Belonging to one kind of wired communication. The light is modulated to carry information.
Fig. 4 is a schematic structural diagram of a management system of a power distribution network according to another exemplary embodiment of the present application. As shown in fig. 4, the power distribution network master station platform 11 includes a 10kV line state acquisition unit 111, where the 10kV line state acquisition unit 111 is configured to acquire environmental state information of a 10kV line, video of a key part, and temperature and state information of a joint of the 10kV line.
Aiming at the overhead line, an internet of things device such as video monitoring and shooting device, microclimate device and the like is arranged at key points (crossing points, forest and grassland crossing and the like) of a line channel, and information is uploaded to a power distribution automation master station. For cable lines, the state monitoring such as temperature, partial discharge and the like is installed at the important ring main unit and the cable connector, and information is uploaded to the distribution automation master station.
(1) Video monitoring
Aiming at overhead lines, video monitoring cameras are installed at key points of line channels, such as crossing points, crossing of forests and grasslands, and the like, and abnormal states of tower inclination, broken lines, abnormal lines, regional invasion, abnormal behaviors, fire alarms and the like are monitored in real time.
(2) Environmental monitoring
The intelligent gateway collects various environmental state quantities such as microclimate, temperature, humidity, water immersion, SF6 concentration, smoke and the like in real time, and monitors sensor event triggering alarms or limit value alarms in real time.
(3) State monitoring
And installing a temperature sensor, a partial discharge state monitoring sensor and the like at the ring main unit, the cable line connector and the like, acquiring the sensor data in real time through the intelligent gateway, and uploading information to a distribution network main station.
Fig. 5 is a schematic structural diagram of a management system of a power distribution network according to another exemplary embodiment of the present application. As shown in fig. 5, the power distribution network master station platform 11 includes a station area monitoring unit 112, where the station area monitoring unit 112 is configured to collect voltage and current of the box-type transformer and operation status information of the box-type transformer.
And the intelligent sensing equipment of the simple transformer area is configured to realize data acquisition such as voltage and current of the box-type transformer and monitoring of the running state.
The box-type transformer (generally referred to as 'box transformer') is designed in a box-type shell in a concentrated manner, and has the advantages of small volume, light weight, low noise, low loss and high reliability.
The box-type transformer is not just a transformer, but is equivalent to a small-sized transformer station, belongs to a power distribution station, and directly provides power for users. The transformer comprises a high-pressure chamber, a transformer chamber and a low-pressure chamber; the high-voltage chamber is a power supply side, is generally 35 kilovolts or 10 kilovolts of incoming wires, comprises a high-voltage busbar (High voltage busbar), a circuit breaker or a fuse, a voltage transformer, a lightning arrester and the like, is a transformer in the transformation chamber, is main equipment of a box transformer, and is internally provided with a low-voltage busbar (Low voltage busbar), a low-voltage circuit breaker, a metering device, the lightning arrester and the like, and a circuit is led out from the low-voltage busbar to supply power for a user.
In an embodiment, the power distribution grid master station platform comprises a power distribution room system comprising a compiling unit for compiling and analysing the perceived data of each power usage infrastructure in the power distribution grid master station.
In an embodiment, the power distribution room module comprises a monitoring unit for monitoring the operational status of the transformer in the power distribution network master station.
In one embodiment, the electrical room system includes an electrical room environmental collection unit for collecting environmental data of the electrical room.
The intelligent gateway collects state quantities of equipment bodies such as transformer or ring main unit partial discharge, cable joint temperature and the like in real time, and collects state quantities of various environments such as temperature, humidity, water immersion, SF6 concentration, smoke and the like in real time. And sensors such as smoke sensing, water immersion, temperature and humidity, partial discharge and the like are configured, so that the collection of the environmental quantity and the equipment state quantity of the power distribution station room is realized.
The monitoring unit collects data of a switching station through PT and CT sensors and uploads the data to a main station, the main station uploads the data of a ring main unit and a secondary fusion on-column breaker, the main station collects three-phase voltage and three-phase current data respectively, basic data such as voltage, current and phase angle are calculated, the voltage, current and phase angle data are utilized to calculate active power, reactive power, total active power, total reactive power and total power factor, and harmonic content, voltage-current unbalance rate, line frequency and the like.
The distribution room environment acquisition unit acquires real-time data of the intelligent circuit breaker and the intelligent capacitor through HPLC or 485 communication, and electric quantity acquisition is realized.
The distribution room environment acquisition unit acquires data information such as voltage/current, on/off state, residual current, alarm event and the like of the low-voltage intelligent circuit breaker; and collecting information such as voltage/current, active/reactive power, protection action events, protection action section data, temperature and the like of the low-voltage intelligent monitoring unit.
The distribution room is provided with an AI intelligent camera, and a deep learning algorithm is embedded in the intelligent camera, so that intelligent monitoring and analysis of states such as passenger flow statistics, regional attention, personnel density and the like can be realized.
The edge computing terminal 12 comprises an intelligent fusion terminal, the intelligent fusion terminal collects operation information of a distribution transformer and operation state information of the distribution transformer, collects equipment information such as a residual current breaker, a low-voltage outgoing switch, electric energy quality management and the like through a local communication interface (RS 485/232, a network port and the like), collects information of key nodes (branch boxes) of a low-voltage line in a LoRa wireless communication mode, and completes information collection from outgoing lines of the transformer to lines of an electric meter interval; the intelligent fusion terminal pushes the acquired information to a power distribution automation master station through a wireless private network; the concentrator is used for sending electricity information to the electricity utilization system, the electricity utilization system is used for pushing data to the power distribution automation master station, and the power distribution operation and maintenance management and control platform is used for directly reading ammeter information, transformer operation information and intelligent power distribution area related information from the power distribution automation master station.
The edge computing terminal 12 comprises a novel DTU which is deployed in a ring main unit or an open/close station, adopts a distributed structure and is divided into a public unit and a spacing unit. The public unit is electric power internet of things looped netowrk cabinet convergence equipment and edge computing center, and the interval unit is electric power internet of things looped netowrk cabinet interval equipment, realizes perception and interval autonomy. The DTU interval unit is arranged in the ring main unit interval cabinet and used as near-end sensing equipment accessed through a local network to finish electrical and line loss measurement and fault judgment on site; the DTU public unit is matched with the interval units and other intelligent units to realize functions of intelligent sensing, fault positioning and research and judgment, equipment state monitoring and evaluation, bidirectional information flow plug and play and the like of the ring main unit except data collection and processing of each unit of the ring main unit.
DTU (Data Transfer unit), which is a wireless terminal device specifically used for converting serial data into IP data or converting IP data into serial data and transmitting the serial data through a wireless communication network.
The connection is established with the data processing centre via the GPRS network as shown in figure 2. The connection involves the links of wireless network operators, internet broadband providers, network conditions of user companies, and computer configuration of users, so that each part needs to be configured to establish the connection. Essentially, the DTU and the data processing center establish a socks connection. The DTU is a SOCKET client, and the data processing center is a SOCKET server. The SOCKET is connected with a TCP protocol and a UDP protocol, and the DTU and the hub use the same protocol, which is generally configured by configuration software. After the central IP address and port number are configured for the DTU, the DTU is connected with the user equipment through the serial port. In the illustration of fig. 2, the DTU is placed in the field in conjunction with hydrologic, electrical, weather, environmental, etc. equipment. The DTU, after powering up, first registers with the mobile's network and then sends a request packet to establish socks to the mobile, which sends the request to the internet. And the server software of the center establishes connection after receiving the request and sends response information. The request message sent by the DTU is a data packet on the internet, and there are reasons that the center is prevented from receiving the connection request packet, so that the connection cannot be established. Most commonly, the data packets are masked by antivirus software, firewalls, etc. on the computer with the center. The other is that the central computer is connected to the internet through a router, and data forwarding is set on the router. The socks connection can be bi-directionally communicated after being established.
The edge computing terminal 12 comprises a novel FTU, a medium-voltage overhead line adopts a deep fusion on-column switch, an internal electronic sensor and a switch body for deep fusion, and a miniaturized design is adopted for the terminal, so that sensing data of the overhead line sensor is collected and edge computing and in-situ decision-making are organized as convergence equipment of the power distribution overhead line power Internet of things while switching electric quantity sensing is completed; the distribution line synchronous accurate measurement sensor is used for collecting the electrical data of the distribution line, so that the accurate synchronization and the wireless internet of things networking can be ensured, and the calculation of the edge of the distribution line, such as single-phase grounding judgment and the like, can be realized together with a feeder terminal; the intelligent monitoring module integrated inside the conventional zinc oxide arrester is used for monitoring the total leakage current, the valve core temperature, the action times and the like of the arrester on line by adopting the distribution line arrester sensing sensor, supporting wireless Internet of things networking and uploading monitoring data to a terminal.
The distribution switch monitoring terminal (FTU for short) has remote control, remote measurement, remote signaling and fault detection functions, is communicated with the distribution automation main station, provides the running condition of a distribution system, various parameters and information required by monitoring control, including switch states, electric energy parameters, interphase faults, grounding faults and parameters during faults, executes commands issued by the distribution main station, adjusts and controls distribution equipment, and achieves the functions of fault positioning, fault isolation, rapid recovery of power supply in non-fault areas and the like.
The edge computing terminal 12 includes an edge internet of things gateway, is equipped with rich data acquisition, control and transmission interfaces, and provides functions of data acquisition, edge computing, local storage, intelligent gateway, security gateway, data processing forwarding, local and remote control for customer integration.
And accessing equipment one station: the interface is rich and extensible, and one-stop access of various devices is supported;
multiprotocol support: the main stream internet of things communication protocol is supported, and the private communication protocol can be customized according to application requirements; supporting a common video streaming RTSP/RTP/RTCP protocol family;
dual mode management: the system has two management modes, namely a remote management mode and a local management mode;
edge calculation: the safety is high, the system delay is low, and independent operation is supported.
The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of the application to the form disclosed herein. Although a number of example aspects and embodiments have been discussed above, a person of ordinary skill in the art will recognize certain variations, modifications, alterations, additions, and subcombinations thereof.

Claims (10)

1. A management system for a power distribution network, comprising:
a power distribution network master station platform;
the edge computing terminal monitors each power device of the power distribution network main station by adopting an edge computing technology to obtain a plurality of monitoring results and collect operation data of each power device;
the sensing terminal is used for collecting sensing data of each electricity utilization infrastructure in the power distribution network main station; and
the communication module is respectively in communication connection with the power distribution network master station platform, the edge computing terminal and the perception terminal, and the communication terminal is used for transmitting the operation data of each power device, the monitoring results and the perception data of each power utilization infrastructure in the power distribution network master station to the power distribution network master station platform.
2. The system of claim 1, wherein the communication module comprises a telecommunications network, the telecommunications network comprising an optical fiber, a wireless private network, and a wireless public network, the telecommunications network configured to communicatively connect the edge computing terminal with the distribution network master station platform.
3. The system according to claim 1, wherein the communication module comprises a core communication network, the core communication network being composed of 4G technology and broadband power line carriers, the core communication network being configured to communicatively connect the edge computing terminal and the sensing terminal.
4. The system according to claim 1, wherein if a line disconnecting link of a 10kV line in the power distribution network master station platform is greater than or equal to a preset line disconnecting link threshold, the 10k line is set to be any two of the following lines: a target telemetry link, a target remote control link, and a target telemetry signaling link.
5. The system for managing a power distribution network according to claim 4, wherein the setting of the 10k line is any two of: the target telemetry link, and the target telemetry link include:
if the number of the user equipment corresponding to the line disconnecting link of the 10kV line is greater than or equal to a preset line disconnecting link threshold value, setting the 10k line as any two of the following lines: a target telemetry link, a target remote control link, and a target telemetry signaling link.
6. The management system of a power distribution network according to claim 1, wherein the power distribution network master station platform comprises a 10kV line state acquisition unit, and the 10kV line state acquisition unit is used for acquiring environmental state information of the 10kV line, videos of key parts, and temperature and state information of joints of the 10kV line.
7. The system of claim 1, wherein the power distribution network master station platform comprises a station area monitoring unit for collecting voltage and current of the box-type transformer and operating state information of the box-type transformer.
8. The system of claim 1, wherein the distribution grid master station platform comprises a distribution room system including a compilation unit for compiling and analyzing the perceived data of each of the power usage infrastructures in the distribution grid master station.
9. The system of claim 8, wherein the distribution room module includes a monitoring unit for monitoring an operational status of a transformer in the distribution network master station.
10. The system of claim 9, wherein the distribution room system includes a distribution room environment collection unit for collecting environmental data of the distribution room.
CN202310135789.0A 2023-02-20 2023-02-20 Management system of power distribution network Pending CN116317117A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116699318A (en) * 2023-07-27 2023-09-05 成都汉度科技有限公司 Electric leakage detection method and system based on edge calculation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116699318A (en) * 2023-07-27 2023-09-05 成都汉度科技有限公司 Electric leakage detection method and system based on edge calculation
CN116699318B (en) * 2023-07-27 2023-10-20 成都汉度科技有限公司 Electric leakage detection method and system based on edge calculation

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