A Reliability Evaluation Method of Relay Protection Operation

Abstract

The invention discloses a method for evaluating the operation reliability of relay protection, which comprises steps 1: collecting basic evaluation indexes to establish an evaluation index system for the operation reliability of the relay protection; and step 2: determining the weight of the basic evaluation indexes for the operation reliability of the relay protection; Step 3, collect the statistical data of relay protection operation, calculate each basic evaluation index and the total score of operation reliability in the relay protection operation reliability evaluation index system based on the weight value in step 2; The failure of the protection device to operate correctly may not only cause the failure to expand, but may even cause the entire power grid to collapse due to adverse chain reactions, resulting in large-scale power outages, which will bring serious negative impact on people's normal life, social economic development and stability and other technical issues.

Description

technical field [0001] The invention belongs to the technical field of power system relay protection, in particular to a method for evaluating the reliability of relay protection operation. Background technique [0002] As the first line of defense to ensure the safe operation of the power grid and prevent the occurrence of catastrophic accidents, the relay protection is closely related to the safe and stable operation of the power grid. Ensuring the normal operation of the relay protection device is of great significance to ensure the safe and stable operation of the power grid. When the power grid fails, if the relay protection device cannot operate correctly, it may not only cause the failure to expand, but may even cause the entire power grid to collapse due to adverse chain reactions, resulting in large-scale power outages, giving people's normal life and social economy. Development and stability have serious negative consequences. In order to strengthen the overall c...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for evaluating the reliability of relay protection operation, which is used to evaluate the reliability of relay protection operation, so as to solve the problem in the prior art that the fault may not only expand due to the failure of the relay protection device to operate correctly , and may even cause the entire power grid to collapse due to adverse chain reactions, leading to large-scale power outages, and technical problems such as serious negative impacts on people's normal life, social economic development, and stability.

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