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Fault early warning method, medium and system for converter station AC filter circuit breaker

An AC filter and circuit breaker fault technology, applied in power transmission AC network, automatic disconnection emergency protection devices, circuit devices, etc., can solve the problems of lack of timeliness and comprehensiveness of AC filter circuit breaker fault warning, etc. To achieve the effect of avoiding fault tripping

Active Publication Date: 2021-08-27
国网宁夏电力有限公司超高压公司 +2
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Problems solved by technology

[0003] Embodiments of the present invention provide a fault early warning method, medium and system for an AC filter circuit breaker in a converter station, so as to solve the problem of lack of timeliness and comprehensiveness in the prior art for early warning of AC filter circuit breaker faults

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  • Fault early warning method, medium and system for converter station AC filter circuit breaker
  • Fault early warning method, medium and system for converter station AC filter circuit breaker
  • Fault early warning method, medium and system for converter station AC filter circuit breaker

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Embodiment Construction

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0016] The embodiment of the invention discloses a fault early warning method for an AC filter circuit breaker in a converter station. Such as figure 1 As shown, the failure early warning method includes the following steps:

[0017] Step S1: When the AC filter of the converter station is switched, the feature quantity of the circuit breaker is collected.

[0018] The feature quantity can be calculated by recording and analyzing the wave recording fi...

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Abstract

The invention discloses a fault early warning method, medium and system for a converter station AC filter circuit breaker. The method comprises the following steps: when a converter station AC filter is switched, collecting the characteristic quantity of a circuit breaker; according to the characteristic quantity, judging whether the circuit breaker breaks down, wherein the judgment method comprises the steps that the characteristic quantity is input into an extreme learning machine so that the extreme learning machine can output the result of whether the circuit breaker breaks down or not, or the characteristic quantity is compared with a reference threshold value so that whether the circuit breaker breaks down or not can be determined; and if the circuit breaker has a fault, sending out an early warning signal. When the AC filter circuit breaker of the converter station is abnormal, potential fault information of the AC filter circuit breaker can be found and early warning can be given out before the protection device acts, operation and maintenance personnel are reminded to remove fault hidden dangers, and serious accidents such as fault tripping are avoided.

Description

technical field [0001] The invention relates to the technical field of an AC filter circuit breaker in a converter station, in particular to a fault warning method, medium and system for an AC filter circuit breaker in a converter station. Background technique [0002] The AC filter circuit breaker is one of the indispensable key devices in the converter station. Whether it can operate stably will directly affect the reliability of the DC transmission system. At present, the detection methods of AC filter circuit breaker faults are mainly manual inspection, infrared temperature measurement, protection alarm, etc. These means are random, lacking in timeliness and comprehensiveness. Contents of the invention [0003] Embodiments of the present invention provide a fault early warning method, medium and system for an AC filter circuit breaker in a converter station, so as to solve the problem of lack of timeliness and comprehensiveness in the prior art for early warning of AC...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/26H02H3/04H02J3/36
CPCH02H7/268H02H3/04H02J3/36Y02E60/60
Inventor 史磊柴斌刘志远张沈习黎炜徐辉相中华刘若鹏刘畅胡博毛春翔耿祥瑞彭洁海景雯王克荣
Owner 国网宁夏电力有限公司超高压公司
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