Remote secondary equipment analog quantity intelligent diagnosis method based on dispatching master station

Abstract

The invention provides a remote secondary equipment analog quantity intelligent diagnosis method based on a scheduling master station, and the method proposes a typical analog quantity channel matching method on the basis of researching the uncertain matching factors of different versions of protection devices of different relay protection manufacturers, such as non-corresponding channel names and inconsistent channel configuration numbers. By means or methods of on-line comparison, waveform characteristic analysis and the like, the correctness of the analog quantity sampling, calculation and transmission process of the secondary equipment is comprehensively analyzed, and the defects in the aspects of secondary circuit wiring, device analog quantity, channel delay parameter setting and the like are found in time; on-line analog quantity monitoring and intelligent diagnosis functions are realized through the typical analog quantity analysis and diagnosis method of the relay protection equipment, and the accuracy and the working efficiency of intelligent inspection of the analog quantity of the power grid are effectively improved, so that'false inspection 'caused by human errors can be avoided.

Description

technical field [0001] The invention relates to an intelligent diagnosis method of remote secondary equipment analog quantities based on a dispatching master station, and belongs to the technical field of electric power system control. Background technique [0002] At present, the secondary equipment is used as an auxiliary equipment for monitoring, measuring, controlling, protecting and adjusting the primary equipment in the power system. Monitoring and Diagnostics. Redundant information from different types of equipment can be obtained from the master station, and based on mutual verification of these information, potential hidden dangers and risks can be found. However, relevant research and technical means construction have not yet been carried out. [0003] The conventional substation obtains the real-time operation information of the protection device through the Baoxin substation, and the smart substation obtains the real-time operation information of the secondary ...

AI Technical Summary

Problems solved by technology

Due to the large increase in the number of plants and secondary equipment, it is difficult to ensure the inspection effect of the regular on-site inspections carried out by the operation and maintenance personnel. It is inevitable that there will be missed inspections and wrong inspections, which will adversely affect the safe and stable operation of the power system.

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