Quick network electric power relay protection system

Abstract

The invention relates to a quick network electric power relay protection system and belongs to the technical field of electric power relay protection. The quick network electric power relay protection system comprises intelligent terminals arranged on power distribution equipments, an optical fiber communication network, a network protection device and a network protection server, wherein the optical fiber communication network respectively connects the intelligent terminal with the network protection device, and connects the network protection device with the network protection server, and the intelligent terminal collects analog quantity and switching quantity operating condition data of the power distribution equipment and uploads the data to the network protection device; the network protection device gathers the data uploaded by the intelligent terminals, performs wide-area differential protection calculation and uploads the calculation results to the network protection server; and the network protection server displays the data uploaded by the network protection device, finishes intelligent setting and intelligent control according to the real-time change of network topology, and transmits the data to the network protection device. With the quick network electric power relay protection system, the number of secondary equipments is reduced, the management workload on the operation and maintenance of secondary equipments is relieved, and the benefit maximization of the power system is realized.

Description

technical field [0001] The invention relates to an electric power relay protection system, which belongs to the technical field of electric power relay protection. Background technique [0002] The traditional power relay protection system is configured according to a single protected component. It is a protection device based on local measurement information and a small amount of regional information. There is no unified digital source, unified data format, and data sharing. It protects a single electrical device. Components (such as lines, transformers, etc.). [0003] When an accident occurs in the power system, the traditional power relay protection system lacks overall cooperation, and is prone to successive actions, which may lead to accident expansion and system stability damage. The traditional protection configuration is complicated, and it is difficult to coordinate between setting and setting values. Therefore, the time of the backup segment is sometimes very lo...

AI Technical Summary

Problems solved by technology

[0002] The traditional power relay protection system is configured according to a single protected component. It is a protection device based on local measurement information and a small amount of regional information. There is no unified digital source, unified data format, and data sharing. It protects a single electrical device. Components (such as lines, transformers, etc.)

[0003] When an accident occurs in the power system, the traditional power relay protection system lacks overall cooperation, and it is prone to successive actions, which may easily lead to the expansion of the accident and the destruction of system stability.

The traditional protection configuration is complex, and it is difficult to coordinate between setting and setting values

Therefore, sometimes the time of the backup segment is very long, which is not conducive to quick removal of faults

[0004] When the traditional protection removes the faulty equipment and transfers the power flow caused by the transfer of power supply to the non-faulty section, the protection setting is difficult to adapt to the change of the operation mode

[0005] The acquisition device and communication device of the traditional power relay protection system have not been optimized, repeated configuration, many screen groups, large floor area, complex secondary circuit, and heavy maintenance workload

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