Intelligent substation protection action tripping inspection method and system

Abstract

The invention relates to an intelligent substation protection action tripping inspection method and system. The system comprises an intelligent Internet-of-Things platform and an intelligent inspection terminal. The intelligent Internet-of-Things platform comprises an intelligent Internet-of-Things platform control unit and an intelligent Internet-of-Things platform arithmetic unit. The intelligent Internet-of-Things platform control unit is connected with the intelligent inspection terminal, a dispatching automation background system, an information protection substation system, a fault recording system and a traveling wave distance measurement system. The intelligent inspection terminal is connected with a microclimate monitoring terminal, an intelligent lighting system, an image monitoring system, an unmanned aerial vehicle and an inspection robot. The intelligent Internet-of Things-platform arithmetic unit is connected with the information protection substation system, the fault recording system, the traveling wave distance measurement system, the microclimate monitoring terminal, the intelligent lighting system, the image monitoring system, the unmanned aerial vehicle, the inspection robot and a protection action tripping information reporting system. According to the invention, interconnection, intercommunication and intelligent linkage of information uploading, issuing,execution and feedback of each system can be realized, and the intelligent substation protection action tripping inspection method and system are easy to popularize and apply.

Description

technical field [0001] The invention belongs to the technical field of substation protection action trip inspection, and in particular relates to a substation protection action trip intelligent inspection method and system. Background technique [0002] With the rapid development of smart grid and Internet of Things technology, substations are gradually advancing towards intelligent substations. Since the substation has been managed by no one on site for a long time, most of the substations are unattended substations. At present, when the protection action trip occurs in the substation, it is still processed by human notification, which has low efficiency and timeliness. The monitoring and processing of the protection action trip is particularly important. At present, the intelligent processing of protection action tripping is still in a blank stage, and the intelligent inspection method of substation protection action tripping is designed to achieve this purpose. [0003] ...

AI Technical Summary

Problems solved by technology

[0008] 1. Now the "unattended" substation mode has been fully implemented in the whole network. Most of the "unattended" substations are located in remote mountainous areas with inconvenient transportation. When the protection action trips in the substation, the patrol maintenance center receives the notice from the dispatcher on duty and rushes to the scene , under normal circumstances, it takes 2-4 hours of driving time halfway, excluding more remote substations, the driving time is too long, and the processing response time is longer;

[0009] 2. Most of the substation end systems in existing substations are mutually independent systems. The high-definition video system, intelligent inspection robot system, intelligent lighting system, and micro-weather monitoring terminal are mostly information islands, and resources cannot be shared with each other. When the protection action trips, Each system is isolated, and it is impossible to effectively call and link each system to effectively handle, monitor and inspect the problem of protection action tripping

[0010] 3. Most of the existing "unattended" substations are located in relatively remote mountainous areas. When the protection action trips and the operation and maintenance personnel go to the site, the status of abnormal equipment is unknown, the risk is uncontrollable, and there is a vacuum period in the safety control of abnormal equipment. , it is not convenient to prepare spare parts in advance, and the accident handling is passive after arriving at the scene;

[0011] 4. On-site primary equipment, relay protection and safety automatic device actions and other inspection conditions and inspection time are affected by the skill level of inspectors, which is reflected in the comprehensive inspection and high efficiency of operating personnel with high technical experience, and new employees or those with low skill experience Operator inspection is not comprehensive, easy to leak, time-consuming and inefficient;

[0012] 5. Protection action trips are mostly caused by lightning strikes in thunderstorm weather. 80% of lightning strike protection trips mostly occur at night. The weather is bad, the road conditions are rough, the traffic is inconvenient, and the risk of personal injury in traffic accidents is significantly increased. At present, it is impossible to realize remote inspection analysis and processing;

[0013] 6. At least two operation and maintenance personnel (one operator and one guardian) and one driver are required after the protection action trips. In the thunderstorm season, the frequency of protection action trips in each substation is too high, human resources are in short supply, and the input of manpower and material resources does not conform to lean Operation and maintenance requirements;

[0014] 7. The protection trip information needs to be entered into the "integrated dispatching operation management system". The time limit is short and the content is large. However, the entry of protection information is affected by the skill level of the entry personnel, which is reflected in the high technical level and accurate entry of operators who are familiar with the system. High efficiency, low skill level of new employees, and operators who are not familiar with the system are prone to errors, omissions, time-consuming, and low efficiency. At present, the entry process has not yet been automated, intelligent, and unmanned;

The export time of the recording source file is affected by the familiarity of the operator with the fault recording device, which is reflected in the high export efficiency and short time of the operation and maintenance personnel who are familiar with the fault recording device, and the export efficiency of new employees who are not familiar with the fault recording device. low, time-consuming;

[0016] 9. The U disk inserted into the fault recording device must be formatted before it can be inserted. If there is an unformatted and unused special U disk, the device will be poisoned and directly threaten the network security of the production zone II;

[0017] 10. The protection action trips are mostly concentrated in the thunderstorm season. Most of the protection action trips are caused by lightning strikes. A large number of them are concentrated in a few months. The steps of reporting the protection action trip information, reporting content, filling in data, and uploading attachments are easy to forget, and the protection action occurs. The post-site disposal efficiency is low and does not meet the requirements of lean management

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