CN116722512B - Intelligent management and setting verification system based on main-distribution cooperation distribution network protection - Google Patents

Intelligent management and setting verification system based on main-distribution cooperation distribution network protection Download PDF

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Publication number
CN116722512B
CN116722512B CN202310755107.6A CN202310755107A CN116722512B CN 116722512 B CN116722512 B CN 116722512B CN 202310755107 A CN202310755107 A CN 202310755107A CN 116722512 B CN116722512 B CN 116722512B
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China
Prior art keywords
protection device
protection
fixed value
main
parameter
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CN116722512A (en
Inventor
季坤
朱嫔嫔
戴东升
丁怀军
马骁兵
陈杰
张耀升
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Huaibei Power Supply Co of State Grid Anhui Electric Power Co Ltd
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Huaibei Power Supply Co of State Grid Anhui Electric Power Co Ltd
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Priority to CN202310755107.6A priority Critical patent/CN116722512B/en
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0092—Details of emergency protective circuit arrangements concerning the data processing means, e.g. expert systems, neural networks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/006—Calibration or setting of parameters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • 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]
    • 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
    • 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
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications

Abstract

The invention discloses an intelligent management and setting verification system based on a main-distribution cooperative distribution network protection, belongs to the field of distribution network protection management, and solves the problem of how to carry out supervision and verification on protection devices in a distribution network so that the distribution network is safer and more reliable; through the abnormality analysis module and the overhaul management module, whether each main protection device and each auxiliary protection device in the distribution network are abnormal or not can be judged, whether the main protection device and the adjacent auxiliary protection devices can work cooperatively or not is analyzed, and the abnormality is overhauled in time, so that the problems that the protection devices in the distribution network cannot work normally and the main protection devices and the auxiliary protection devices cannot work cooperatively are avoided, and the power failure is enlarged and the distribution network safety problem is caused; the parameter fixed value of the overhauled protection device is determined through the setting checking module, so that more accurate and reliable parameter fixed value can be obtained, and the safety and reliability of distribution network protection are improved by combining with checking the physical configuration of the protection device.

Description

Intelligent management and setting verification system based on main-distribution cooperation distribution network protection
Technical Field
The invention belongs to the field of distribution network protection management, and particularly relates to an intelligent management and setting verification system based on main distribution collaborative distribution network protection.
Background
In order to ensure normal and safe operation of the distribution network, a main-distribution cooperation mode is adopted at present to timely isolate faults in the distribution network. The main coordination refers to the mutual coordination between the main protection and the standby protection in the power system so as to realize the reliable operation and protection of the power system.
In the prior art, the distribution network is protected through the main distribution coordination, wherein the technology of connection and control between the main distribution coordination is mature, but no good technical scheme exists for monitoring and checking whether the protection devices are abnormal or not and whether the auxiliary work between the protection devices is abnormal or not; therefore, the invention provides an intelligent management and setting verification system based on the protection of the main-distribution cooperative distribution network.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the intelligent management and setting verification system based on the protection of the main-distribution cooperative distribution network solves the problem of how to monitor and verify the protection devices in the distribution network, so that the distribution network is safer and more reliable.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
based on main join in marriage cooperation and join in marriage net protection intelligent management and setting check-up system, include: the system comprises a fixed value collection module, an information acquisition module, an abnormality analysis module, an overhaul management module and a setting verification module;
the fixed value collection module is used for collecting the mapping relation between the power equipment and the protection devices in the distribution network and the latest parameter fixed values of the protection devices, preparing a distribution protection equipment comparison table and a main protection equipment comparison table, and uploading the distribution protection equipment comparison table and the main protection equipment comparison table to the cloud server;
the information acquisition module is used for acquiring real-time operation parameter information of each power equipment in the distribution network and action information of the corresponding protection device and uploading the information to the cloud server;
the abnormality analysis module is used for analyzing the real-time operation parameter information of the power equipment and the action information of the corresponding protection device, judging whether the protection device is abnormal, outputting an abnormal main protection set and an abnormal configuration protection set and uploading the abnormal main protection set and the abnormal configuration protection set to the cloud server;
the overhaul management module is used for generating an overhaul task of the protection device according to the protection device numbers stored in the abnormal main protection set and the abnormal distribution protection set and sending the overhaul task to the corresponding overhaul personnel client;
and the setting verification module is used for carrying out setting verification on the overhauled target protection device and uploading the number of the target protection device and the parameter fixed value of the number to the cloud server, wherein the setting verification is successful.
Further, the protection device comprises a main protection device and a matched protection device; the main protection device is used for protecting the power equipment in the distribution network; when the protected power equipment fails, the main protection device cuts off the failure point without time limit or with short time limit; the auxiliary protection device is used for carrying out auxiliary action removal on fault points which cannot be removed by the main protection device.
Further, the parameter fixed value of the protection device is obtained by calculation according to the rated operation parameters of the power equipment to be protected; the types of the parameter fixed values comprise a fault current parameter fixed value, an overcurrent protection parameter fixed value, an overvoltage protection parameter fixed value, an undervoltage protection parameter fixed value and a frequency protection parameter fixed value.
Further, the fixed value collecting module corresponds to the number of the protection device, the parameter fixed value and the number of the power equipment to be protected, and a protection device matching comparison table is manufactured; and the number of the main protection device, the parameter fixed value, the number of the power equipment to be protected and the number of the adjacent protection device are correspondingly manufactured into a main protection equipment comparison table.
Further, the real-time operation parameter information of the power equipment comprises the number and the operation parameter value of the power equipment; the action information of the protection device comprises the number and the action type of the protection device; the action types include power off and power on.
Further, the analysis process of the anomaly analysis module is as follows:
step S1: extracting real-time operation parameter information of target power equipment and action information of a corresponding protection device in a unit time period from a cloud server at regular time; wherein the unit time period refers to a time period between two timing extraction analysis time points;
step S2: traversing in a main protection equipment comparison table and a matched protection equipment comparison table according to the number of the target power equipment to obtain the number of the protection device and a parameter fixed value corresponding to the target power equipment; comparing the real-time operation parameter value of the target power equipment with the parameter fixed value of the corresponding protection device;
when the real-time operation parameter value of the target power equipment is greater than or equal to the parameter fixed value of the corresponding protection device, if the action type of the corresponding protection device is kept to be electrified, the step S3 is carried out; if the action type of the corresponding protection device is power off, ending;
when the real-time operation parameter value of the target power equipment is smaller than the parameter fixed value of the corresponding protection device, ending if the action type of the corresponding protection device is kept powered on, and turning to step S3 if the action type of the corresponding protection device is kept powered off;
step S3: if the corresponding protection device is the main protection device, marking the main protection device as abnormal, storing the number of the main protection device into an abnormal main protection set, acquiring the number of the adjacent protection device according to a main protection equipment comparison table, acquiring real-time action information of the adjacent protection device with the corresponding number from a cloud server, ending if the action type of the adjacent protection device is power-off, otherwise marking the protection device with the action kept as power-on as abnormal, and storing the number of the protection device into the abnormal protection set;
if the corresponding protection device is a matched protection device, marking the matched protection device as abnormal, and storing the number into an abnormal matched protection set;
step S4: uploading the abnormal main protection set and the abnormal configuration protection set to a cloud server for storage.
Further, the processing procedure of the tuning and checking module is as follows:
step P1: acquiring a parameter fixed value of the target protection device;
step P2: checking the physical configuration of the target protection device;
step P3: testing the protection device after setting the parameter fixed value and checking the physical configuration;
step P4: and uploading the number of the target protection device and the parameter fixed value of which the setting check is successful to the cloud server.
Further, in step P1, according to the rated operation parameter value of the protected power equipment, calculating the parameter constant value of the target protection device; extracting historical parameter fixed values of a protection device corresponding to the protected power equipment from the cloud server, removing a maximum value and a minimum value, carrying out average calculation on the rest historical parameter fixed values, and obtaining an average historical parameter fixed value serving as a parameter fixed value threshold of the target protection device;
if the calculated parameter fixed value is larger than the parameter fixed value threshold, taking the parameter fixed value threshold as the parameter fixed value of the protection device; meanwhile, checking the parameter fixed value calculation formula, namely changing according to the parameter fixed value threshold; and if the calculated and obtained parameter fixed value is smaller than or equal to the parameter fixed value threshold, taking the calculated and obtained parameter fixed value as the parameter fixed value of the protection device.
Further, in step P3, the test includes a parameter setting test, an action test, and a transmission time test; if the parameter fixed value deviation occurs, adjusting the parameter fixed value; if the configuration error occurs, the configuration is adjusted.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the fixed value collection module is used for obtaining the comparison table of the auxiliary protection equipment and the comparison table of the main protection equipment, and the information collection module is used for obtaining the real-time operation parameter information of the power equipment and the action information of the corresponding protection device, so that a data foundation is laid for subsequent data processing.
2. Through the abnormality analysis module and the maintenance management module, whether each main protection device and each distribution protection device in the distribution network are abnormal or not can be judged, whether the main protection device and the adjacent distribution protection devices can work cooperatively or not is analyzed and judged, and the abnormality is maintained in time, so that the problems that the protection devices in the distribution network cannot work normally and the main protection devices and the distribution protection devices cannot work cooperatively, power faults are enlarged, the distribution network safety is caused, and the like are avoided.
3. The setting and checking module is used for determining the parameter constant value of the protection device after abnormal overhaul, so that the more accurate and reliable parameter constant value can be obtained, and the protection device can normally work after being put into use again by combining with checking the physical configuration of the protection device; the safety and the reliability of the distribution network protection are improved.
Drawings
Fig. 1 is a schematic diagram of a system structure according to the present invention.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, the intelligent management and setting verification system based on the protection of the main-distribution cooperative distribution network comprises: the cloud server comprises a fixed value collection module, an information acquisition module, an anomaly analysis module, an overhaul management module, a setting verification module and a cloud server;
the fixed value collection module is used for collecting the mapping relation between the power equipment and the protection devices in the distribution network and the latest parameter fixed values of the protection devices, and preparing a distribution protection equipment comparison table and a main protection equipment comparison table;
optionally, the protection device in the distribution network includes a main protection device and a distribution protection device; in this embodiment, the main protection device is used to protect important power equipment in the distribution network, where the important power equipment may be a transformer, a power transmission cable, and the like; when the protected power equipment fails, the main protection device can quickly cut off the failure point without time limit or with short time limit; the auxiliary protection device is used for performing auxiliary action removal on fault points which cannot be removed by the main protection device, but the time limit is longer; the fault range to be cut off by the distribution protection device is larger than the fault range to be cut off by the main protection device, the main protection device and the distribution protection device are mutually assisted, and the corresponding power equipment can be doubly protected by matching, so that the safety and reliability of the distribution network are realized;
the parameter fixed value of the protection device is obtained by calculation according to the rated operation parameter of the power equipment to be protected, and when the corresponding operation parameter value of the line of the power equipment to be protected exceeds the corresponding parameter fixed value, the protection device starts the protection action, so that the fault point is removed;
according to the type of the power equipment and the protection strategy, the parameter fixed values of the protection device can comprise a fault current parameter fixed value, an overcurrent protection parameter fixed value, an overvoltage protection parameter fixed value, an undervoltage protection parameter fixed value, a frequency protection parameter fixed value and the like;
the fixed value collecting module is used for preparing a matched protection equipment comparison table by corresponding the serial numbers of the matched protection devices, the parameter fixed values and the serial numbers of the power equipment to be protected according to the difference between the main protection devices and the matched protection devices, and preparing a main protection equipment comparison table by corresponding the serial numbers of the main protection devices, the parameter fixed values, the serial numbers of the power equipment to be protected and the serial numbers of the adjacent matched protection devices; uploading the prepared comparison table of the matched protection equipment and the master protection equipment to a cloud server for storage;
the information acquisition module is used for acquiring real-time operation parameter information of each power equipment in the distribution network and action information of a corresponding protection device, and uploading the acquired information to the cloud server for storage;
the real-time operation parameter information of the power equipment is collected according to the parameter constant value parameter type of the protection device of the power equipment, and the collecting tool can be a corresponding sensor such as a current transformer, a voltage transformer and the like;
the action information of the protection device comprises the action information of the main protection device and the action information of the auxiliary protection device; the action information is classified according to the general state, the action type can be power off or power on, and particularly tripping, overlapping and the like of the switch;
the real-time operation parameter information of the power equipment comprises the number of the power equipment and an operation parameter value; the action information of the protection device comprises the number, the action type and the like of the protection device;
the abnormality analysis module is used for analyzing the real-time operation parameter information of the power equipment and the action information of the corresponding protection device and judging whether the protection device is abnormal or not;
it should be noted that, the power equipment in the distribution network is numerous, one of the power equipment is judged at present, and the power equipment is marked as the target power equipment;
the specific analysis process is as follows:
step S1: extracting real-time operation parameter information of target power equipment and action information of a corresponding protection device in a unit time period from a cloud server at regular time;
wherein the unit time period refers to a time period between two timing extraction analysis time points, and the unit time can be several minutes, one hour, and the like;
step S2: traversing in a main protection equipment comparison table and a matched protection equipment comparison table according to the number of the target power equipment to obtain the number of the protection device and a parameter fixed value corresponding to the target power equipment; comparing the real-time operation parameter value of the target power equipment with the parameter fixed value of the corresponding protection device;
when the real-time operation parameter value of the target power equipment is greater than or equal to the parameter fixed value of the corresponding protection device, if the action type of the corresponding protection device is kept to be electrified, the step S3 is carried out; if the action type of the corresponding protection device is power off, ending;
when the real-time operation parameter value of the target power equipment is smaller than the parameter fixed value of the corresponding protection device, ending if the action type of the corresponding protection device is kept powered on, and turning to step S3 if the action type of the corresponding protection device is kept powered off;
step S3: if the corresponding protection device is the main protection device, marking the main protection device as abnormal, storing the number of the main protection device into an abnormal main protection set, acquiring the number of the adjacent protection device according to a main protection equipment comparison table, acquiring real-time action information of the adjacent protection device with the corresponding number from a cloud server, ending if the action type of the adjacent protection device is power-off, otherwise marking the protection device with the action kept as power-on as abnormal, and storing the number of the protection device into the abnormal protection set;
if the corresponding protection device is a matched protection device, marking the matched protection device as abnormal, and storing the number into an abnormal matched protection set;
step S4: uploading the abnormal main protection set and the abnormal configuration protection set to a cloud server for storage;
the overhaul management module is used for generating an overhaul task of the protection device according to the protection device numbers stored in the abnormal main protection set and the abnormal distribution protection set and sending the overhaul task to the corresponding overhaul personnel client;
in this embodiment, through the abnormality analysis module and the maintenance management module, it is possible to determine whether each main protection device and each auxiliary protection device in the distribution network are abnormal, analyze and determine whether the main protection device and its adjacent auxiliary protection device can work cooperatively, and maintain the abnormality in time, so as to avoid the problems of power failure and distribution network safety caused by the failure of the protection devices in the distribution network and the failure of the main protection device and the auxiliary protection device;
after receiving the overhaul task, an overhaul worker overhauls the target protection device and performs setting check;
the setting and checking module is used for setting and checking the overhauled target protection device, and the process is as follows:
step P1: acquiring a parameter fixed value of the target protection device;
optionally, calculating a parameter fixed value of the target protection device according to the rated operation parameter value of the protected power equipment;
extracting the historical parameter fixed value of the protection device corresponding to the protected power equipment from the cloud server, removing the maximum value and the minimum value, carrying out average calculation on the rest historical parameter fixed values, and obtaining an average historical parameter fixed value as a parameter fixed value threshold of the target protection device;
comparing the calculated parameter fixed value with a parameter fixed value threshold;
if the calculated parameter fixed value is larger than the parameter fixed value threshold, taking the parameter fixed value threshold as the parameter fixed value of the protection device; meanwhile, checking the parameter fixed value calculation formula, namely changing according to the parameter fixed value threshold;
if the calculated and obtained parameter fixed value is smaller than or equal to the parameter fixed value threshold, taking the calculated and obtained parameter fixed value as the parameter fixed value of the protection device;
step P2: checking the physical configuration of the target protection device;
optionally, checking the connection relation between the target protection device and the power equipment protected by the target protection device, and checking the input and output settings of the protection device;
step P3: testing the protection device after setting the parameter fixed value and checking the physical configuration;
the fault simulation carries out parameter fixed value test, action test and transmission time test on the protection device, so as to detect whether each performance of the protection device is normal or not;
if the parameter fixed value deviation occurs, adjusting the parameter fixed value; if the configuration is wrong, the configuration is adjusted so that the final protection device can be normally put into the distribution network for use;
step P4: uploading the number of the target protection device and the parameter fixed value of the target protection device which are successfully set and checked to a cloud server;
in the embodiment, the setting and checking module is used for determining the parameter constant value of the protection device after the abnormal overhaul, so that the more accurate and reliable parameter constant value can be obtained, and the protection device can normally work after being put into use again by combining with the checking of the physical configuration of the protection device; the safety and the reliability of the distribution network protection are improved.
The working principle of the invention is as follows:
the invention collects the mapping relation between the power equipment and the protection devices in the distribution network and the latest parameter fixed values of the protection devices through a fixed value collection module, and prepares a distribution protection equipment comparison table and a main protection equipment comparison table to upload to the cloud server; the information acquisition module acquires real-time operation parameter information of each power equipment in the distribution network and action information of a corresponding protection device, and uploads the information to the cloud server; the abnormality analysis module analyzes the real-time operation parameter information of the power equipment and the action information of the corresponding protection device, judges whether the protection device is abnormal, outputs an abnormal main protection set and an abnormal configuration protection set and uploads the abnormal main protection set and the abnormal configuration protection set to the cloud server; the overhaul management module generates an overhaul task of the protection device according to the protection device numbers stored in the abnormal main protection set and the abnormal distribution protection set and sends the overhaul task to a corresponding overhaul personnel client; after receiving the overhaul task, an overhaul worker overhauls the target protection device and performs setting check; and the setting and checking module performs setting and checking on the overhauled target protection device, and uploads the number of the target protection device and the parameter fixed value of the number to the cloud server, wherein the setting and checking are successful.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus, device and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is merely a logical function division, and there may be other manners of division when actually implemented; the modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical units, may be located in one place, or may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the method of this embodiment.
The above embodiments are only for illustrating the technical method of the present invention and not for limiting the same, and it should be understood by those skilled in the art that the technical method of the present invention may be modified or substituted without departing from the spirit and scope of the technical method of the present invention.

Claims (8)

1. Based on main join in marriage and join in marriage net protection intelligent management and setting check-up system in coordination, including cloud ware, its characterized in that: comprising the following steps: the system comprises a fixed value collection module, an information acquisition module, an abnormality analysis module, an overhaul management module and a setting verification module;
the fixed value collection module is used for collecting the mapping relation between the power equipment and the protection devices in the distribution network and the latest parameter fixed values of the protection devices, preparing a distribution protection equipment comparison table and a main protection equipment comparison table, and uploading the distribution protection equipment comparison table and the main protection equipment comparison table to the cloud server;
the information acquisition module is used for acquiring real-time operation parameter information of each power equipment in the distribution network and action information of the corresponding protection device and uploading the information to the cloud server;
the abnormality analysis module is used for analyzing the real-time operation parameter information of the power equipment and the action information of the corresponding protection device, judging whether the protection device is abnormal, outputting an abnormal main protection set and an abnormal configuration protection set and uploading the abnormal main protection set and the abnormal configuration protection set to the cloud server; the analysis process of the anomaly analysis module is as follows:
step S1: extracting real-time operation parameter information of target power equipment and action information of a corresponding protection device in a unit time period from a cloud server at regular time; wherein the unit time period refers to a time period between two timing extraction analysis time points;
step S2: traversing in a main protection equipment comparison table and a matched protection equipment comparison table according to the number of the target power equipment to obtain the number of the protection device and a parameter fixed value corresponding to the target power equipment; comparing the real-time operation parameter value of the target power equipment with the parameter fixed value of the corresponding protection device;
when the real-time operation parameter value of the target power equipment is greater than or equal to the parameter fixed value of the corresponding protection device, if the action type of the corresponding protection device is kept to be electrified, the step S3 is carried out; if the action type of the corresponding protection device is power off, ending;
when the real-time operation parameter value of the target power equipment is smaller than the parameter fixed value of the corresponding protection device, ending if the action type of the corresponding protection device is kept powered on, and turning to step S3 if the action type of the corresponding protection device is kept powered off;
step S3: if the corresponding protection device is the main protection device, marking the main protection device as abnormal, storing the number of the main protection device into an abnormal main protection set, acquiring the number of the adjacent protection device according to a main protection equipment comparison table, acquiring real-time action information of the adjacent protection device with the corresponding number from a cloud server, ending if the action type of the adjacent protection device is power-off, otherwise marking the protection device with the action kept as power-on as abnormal, and storing the number of the protection device into the abnormal protection set;
if the corresponding protection device is a matched protection device, marking the matched protection device as abnormal, and storing the number into an abnormal matched protection set;
step S4: uploading the abnormal main protection set and the abnormal configuration protection set to a cloud server for storage;
the overhaul management module is used for generating an overhaul task of the protection device according to the protection device numbers stored in the abnormal main protection set and the abnormal distribution protection set and sending the overhaul task to the corresponding overhaul personnel client;
and the setting verification module is used for carrying out setting verification on the overhauled target protection device and uploading the number of the target protection device and the parameter fixed value of the number to the cloud server, wherein the setting verification is successful.
2. The intelligent management and setting verification system based on the main-distribution cooperative distribution network protection as claimed in claim 1, wherein the intelligent management and setting verification system is characterized in that: the protection device comprises a main protection device and a matched protection device; the main protection device is used for protecting the power equipment in the distribution network; when the protected power equipment fails, the main protection device cuts off the failure point without time limit or with short time limit; the auxiliary protection device is used for carrying out auxiliary action removal on fault points which cannot be removed by the main protection device.
3. The intelligent management and setting verification system based on the main-distribution cooperative distribution network protection as claimed in claim 1, wherein the intelligent management and setting verification system is characterized in that: the parameter fixed value of the protection device is obtained by calculation according to the rated operation parameters of the power equipment to be protected; the types of the parameter fixed values comprise a fault current parameter fixed value, an overcurrent protection parameter fixed value, an overvoltage protection parameter fixed value, an undervoltage protection parameter fixed value and a frequency protection parameter fixed value.
4. The intelligent management and setting verification system based on the main-distribution cooperative distribution network protection as claimed in claim 1, wherein the intelligent management and setting verification system is characterized in that: the fixed value collection module is used for preparing a comparison table of the distribution protection equipment by corresponding the number of the distribution protection device, the parameter fixed value and the number of the power equipment to be protected; and the number of the main protection device, the parameter fixed value, the number of the power equipment to be protected and the number of the adjacent protection device are correspondingly manufactured into a main protection equipment comparison table.
5. The intelligent management and setting verification system based on the main-distribution cooperative distribution network protection as claimed in claim 1, wherein the intelligent management and setting verification system is characterized in that: the real-time operation parameter information of the power equipment comprises the number and the operation parameter value of the power equipment; the action information of the protection device comprises the number and the action type of the protection device; the action types include power off and power on.
6. The intelligent management and setting verification system based on the main-distribution cooperative distribution network protection as claimed in claim 1, wherein the intelligent management and setting verification system is characterized in that: the processing procedure of the setting checking module is as follows:
step P1: acquiring a parameter fixed value of the target protection device;
step P2: checking the physical configuration of the target protection device;
step P3: testing the protection device after setting the parameter fixed value and checking the physical configuration;
step P4: and uploading the number of the target protection device and the parameter fixed value of which the setting check is successful to the cloud server.
7. The intelligent management and setting verification system based on the main-distribution cooperative distribution network protection as claimed in claim 6, wherein the intelligent management and setting verification system is characterized in that: in the step P1, calculating a parameter fixed value of a target protection device according to a rated operation parameter value of the protected power equipment; extracting historical parameter fixed values of a protection device corresponding to the protected power equipment from the cloud server, removing a maximum value and a minimum value, carrying out average calculation on the rest historical parameter fixed values, and obtaining an average historical parameter fixed value serving as a parameter fixed value threshold of the target protection device;
if the calculated parameter fixed value is larger than the parameter fixed value threshold, taking the parameter fixed value threshold as the parameter fixed value of the protection device; meanwhile, checking the parameter fixed value calculation formula, namely changing according to the parameter fixed value threshold; and if the calculated and obtained parameter fixed value is smaller than or equal to the parameter fixed value threshold, taking the calculated and obtained parameter fixed value as the parameter fixed value of the protection device.
8. The intelligent management and setting verification system based on the main-distribution cooperative distribution network protection as claimed in claim 6, wherein the intelligent management and setting verification system is characterized in that: in the step P3, the test comprises a parameter fixed value test, an action test and a transmission time test; if the parameter fixed value deviation occurs, adjusting the parameter fixed value; if the configuration error occurs, the configuration is adjusted.
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