Non-contact information acquisition health discrimination system and method for series compensation device

Abstract

The invention relates to the technical field of data acquisition and analysis of a series compensation device and discloses a non-contact information acquisition health discrimination system of a series compensation device. The system comprises a noise sensor for monitoring working sounds of a series compensation device, a curent sensor for monitoring the current of a secondary circuit, a displacement sensor for monitoring the displacement changes of a circuit breaker and an isolating switch operating rod, and a thermal imaging module for monitoring the spectrum of the series compensation device. A DC signal isolator converts all measured signals into 0-5V voltages and the voltages are accessed to a single-chip microcomputer for analysis to determine the health state of the series compensation device and display the state. Meanwhile, the invention further discloses a method for judging the health state of the series compensation device, namely, the sensor is used for monitoring relateddata parameter changes of the series compensation device in real time, and the related data parameter changes are analyzed and processed by the single-chip microcomputer. According to the invention,the series compensation device and the secondary circuit control element thereof can be monitored in real time from multiple angles by adopting multiple means, and whether the working state of the series compensation device is normal or not is analyzed and judged.

Description

Technical field [0001] The invention belongs to the technical field of data acquisition and analysis of a series compensation device, and particularly relates to a non-contact information collection health judgment system and method of the series compensation device. Background technique [0002] At present, the online monitoring of series compensation devices used in power systems at home and abroad is mainly carried out by wired wiring. The collected signals mainly include current transformer and voltage transformer signals connected to the series compensation device, circuit breakers and isolation switches. The opening and closing position signals of the circuit breaker and the isolating switch transmitted by the opening and closing auxiliary contact of the, the patent application number is 201810436298.9, and the patent name is "a series compensation device with an integrated platform for real-time condition monitoring". Although the content disclosed can be Real-time monitor...

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Problems solved by technology

[0003] 1. The above-mentioned monitoring device basically failed to conduct a comprehensive monitoring and diagnosis of the secondary control circuit components of the series compensation device, such as: opening and closing coils, circuit breaker operating rods, isolating switch operating rods, etc., and failed to pass the voiceprint Signal and thermal imaging signal for further health determination of series compensation device

[0004] 2. The disadvantage of the above monitoring device is that the collected signal is relatively single and the amount of signal is small, and the means for judging the health status of the series compensation device are insufficient and single

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