Circuit breaker operation monitoring system and method

Through the circuit breaker operation monitoring system, the limit protection prediction value of the circuit breaker is calculated using the multi-physics analysis model, which solves the problem of difficult evaluating the operating status of the circuit breaker, real-time monitoring and analysis of the operating status of the circuit breaker is realized, and the safety and reliability of the power grid operation are improved.

CN119716511APending Publication Date: 2025-03-28JIALING RIVER TINGZIKOU WATER RESOURCES & HYDROPOWER DEV
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Patent Information

Application Number
CN202411556933.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-04
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

In the field of hydropower generation, the operating status of the circuit breaker is difficult to accurately evaluate. Once a failure occurs, it will cause an impact on the power grid structure and affect the stable operation of the power grid.

Method used

The circuit breaker operation monitoring system is adopted. The system calculates the limit protection prediction value of the circuit breaker by obtaining the density parameters and microwater parameters of the circuit breaker, combines the multi-physical field analysis model, and compares it with the theoretical value to calculate the root mean square error to judge whether the operating status of the circuit breaker is abnormal and report abnormal conditions in a timely manner.

Benefits of technology

Real-time monitoring and analysis of the operating status of the circuit breaker is realized, abnormal situations are discovered in a timely manner, the safety of power grid operation is improved, the power loss is reduced, the reliability of plant power is improved, and the stable operation of the power grid is ensured.

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Abstract

The invention discloses a circuit breaker operation monitoring system and method in the technical field of hydroelectric generation. The method comprises the following steps: acquiring a density parameter, a micro-water parameter and a limit protection theoretical value of a circuit breaker; calculating a limit protection prediction value of the circuit breaker by combining a multi-physical field analysis model based on the density parameter and the micro-water parameter of the circuit breaker; according to the limit protection prediction value and the limit protection theoretical value, calculating a root-mean-square error of the two values; judging whether the operation state of the circuit breaker is abnormal or not according to the root-mean-square error; and when the operation state of the circuit breaker is abnormal, reporting an abnormal condition to an operation and maintenance management platform, otherwise, not executing abnormal reporting. According to the method, the operation state of the circuit breaker is analyzed through the multi-physical field analysis model, and before the circuit breaker breaks down, the abnormal condition is reported to operation and maintenance management personnel in time, so that the operation safety of a power grid is improved.
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