Interactive iterative evaluation method for comprehensive reliability of relay protection equipment in regional power grid

Abstract

The invention discloses a comprehensive reliability interactive iteration assessment method for regional power grid relay protection equipment. The comprehensive reliability interactive iteration assessment method comprises the following steps of: extracting basic static data of risk assessment of the power grid relay protection equipment; using the static data of the equipment to calculate a static reliability index of the regional power grid relay protection equipment; extracting real-time data of state monitoring of the relay protection equipment in a regional power grid concentrated control system; carrying out interactive iteration calculation on the static reliability index by using the real-time data, so as to obtain a dynamic reliability index of a power grid; and finally, carrying out risk assessment on the regional power grid relay protection equipment. The invention further provides a risk assessment system of the regional power grid relay protection equipment based on comprehensive reliability interactive iteration calculation. With the adoption of the technology provided by the invention, an operation risk of the regional power grid relay protection equipment can be accurately subjected to risk assessment, so as to provide more accurate reference on maintenance arrangement and operation for related operation people in a better way.

Description

technical field [0001] The invention relates to a comprehensive reliability interactive iterative evaluation method and system for regional power grid relay protection equipment, belonging to the technical field of power grid risk assessment. Background technique [0002] Accurately grasping the operation status and risks of power grid relay protection equipment is conducive to discovering the key weak links in the supply area, and is of great significance to ensure the safe and stable operation of the power grid. In the national electric power network environment, it is necessary to pay special attention to the statistics and analysis of the operation status of relay protection equipment. However, the current traditional method focuses on the post-event statistical analysis of the inherent defects and reliability of relay protection equipment. The information summary of product performance, quality, and reliability performance belongs to the equipment-level post-event analy...

AI Technical Summary

Problems solved by technology

In the national electric power network environment, it is necessary to pay special attention to the statistics and analysis of the operation status of relay protection equipment. However, the current traditional method focuses on the post-event statistical analysis of the inherent defects and reliability of relay protection equipment. Information summary of product performance, quality, and reliability performance is an equipment-level post-event analysis method, and lacks the quantification of the impact on the actual system operating status

In the current whole life management and condition maintenance monitoring of relay protection equipment, there is also a lack of consideration of the external environmental factors of the secondary system

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