Auxiliary analysis and early warning method for maintenance safety measures of relay protection equipment in smart substation

Abstract

The invention discloses an intelligent transformer station relay protection equipment repair safety measure auxiliary analysis early warning method. The method comprises the following steps: defining an operation state; establishing a safety measure rule under an operation state of relay protection equipment or a whole gap; configuring a front examination rule; configuring a detection scene after a safety measure is executed; performing configuration examination of the safety measure rule; previewing and checking the safety measure rule; printing the safety measure rule; freely selecting the operation state of the relay protection equipment or the gap; examining an initial stage of the safety measure rule in real time; examining the front examination rule in real time so as to realize cross early warning; comparing the implementation state of the safety measure rule with an implementation sequence in real time; performing state perceiving and scene real-time detection; and dynamically displaying a real-time comparison result and a scene detection integrated analysis result and realizing a real-time alarm function. The method provided by the invention can effectively reduce the probability of maloperation and improves the correctness and the reliability of an intelligent transformer station operation safety measure.

Description

technical field [0001] The invention relates to an auxiliary analysis and early warning method for maintenance safety measures of relay protection equipment in an intelligent substation, and belongs to the technical field of intelligent substations. Background technique [0002] In the smart substation, the network replaces the secondary cable, and the basic input and output module function of the relay protection device has been moved to the process layer equipment. The secondary circuit has been changed from hard-wired to virtual circuit, and many problems of the original secondary circuit have been solved by means of process-level information sharing, such as the difficulty of online monitoring of the secondary circuit and the repeated construction of front-end acquisition functions. However, the network-based information sharing mode of smart substations brings many advantages and reflects economic value, but also brings challenges to the operation, maintenance and repai...

AI Technical Summary

Problems solved by technology

The secondary loop has changed from a hard-wiring mode to a virtual loop mode, and many problems of the original secondary loop have been solved by sharing information at the process level, such as the difficulty of online monitoring of the secondary loop, repeated construction of front-end acquisition functions, etc.

[0003] In the process of commissioning, operation, and maintenance of relay protection in smart substations, due to differences in the technical level of operation and maintenance personnel, the various operating states of relay protection equipment in smart substations are not intuitive, and there is a lack of multi-dimensional operation and maintenance of relay protection equipment at the station end Technical support platform, in the process of implementing safety measures for relay protection equipment, problems such as misoperation and misplugging are prone to occur, which may lead to misoperation or refusal of relay protection in serious cases, endangering the safe operation of smart grid

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