Method and device for determining out-of-step operation of a synchronous condenser

By acquiring the status data of the synchronous condenser, the ultimate reactive power and ultimate terminal voltage are calculated and compared to determine the operating status of the synchronous condenser. This solves the problem of synchronous condenser running out of sync and achieves convenient detection and cost reduction.

CN116845976BActive Publication Date: 2026-07-03이너 몽골리아 일렉트릭 파워 그룹 컴퍼니 리미티드 이너 몽골리아 일렉트릭 파워 리서치 인스티튜트 브랜치
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Patent Information

Application Number
CN202310858391.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-13
Publication Date
2026-07-03
Estimated Expiration
2043-07-13

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively determine the out-of-synchronization operation status of synchronous condensers. Prolonged out-of-synchronization operation may lead to equipment damage and require additional equipment, increasing costs.

Method used

By acquiring the preset state data of the synchronous condenser, the reactive power, terminal voltage and excitation electromotive force are calculated, the limiting reactive power and limiting terminal voltage are calculated and compared, and the operating state of the synchronous condenser is confirmed based on the comparison results, thus realizing the out-of-synchronization judgment without the need for additional equipment.

Benefits of technology

It enables convenient detection of synchronous condenser out-of-synchronization operation status, reduces costs, and is applicable to synchronous condenser out-of-synchronization determination.

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Abstract

The application provides a method and device for judging out-of-step operation of a synchronous condenser, and relates to the field of fault diagnosis. f The application comprises obtaining preset state data of the synchronous condenser, calculating reactive power Q, terminal voltage U and excitation electromotive force E of the synchronous condenser according to the preset state data, calculating the reactive power Q and the terminal voltage U of the excitation electromotive force under a limit state to obtain limit reactive power and limit terminal voltage, comparing the limit reactive power with the reactive power Q and comparing the limit terminal voltage with the terminal voltage U, and confirming the operation state of the synchronous condenser according to the comparison result. The method can judge the out-of-step operation state of the synchronous condenser, is convenient to detect, does not need additional equipment, reduces cost, and is suitable for judging the out-of-step operation of the synchronous condenser.
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Citation Information

Patent Citations

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