高压电器2024，Vol.60Issue(7)：122-127,6.DOI:10.13296/j.1001-1609.hva.2024.07.013
高压断路器弹簧操动机构分闸电磁铁行程非接触式精确测量
Non-contact Accurate Measurement of Opening Electromagnet Stroke of Spring Operating Mechanism for High Voltage Circuit Breaker
摘要
Abstract
The stroke defect of the electromagnet of high voltage circuit breaker is one of the main reasons which causes the circuit breaker not open.The stroke magnitude of the electromagnet cannot be directly measured by the feeler gauge in case of'on'operation of circuit breaker.For this issue,a kind of non-contact measurement method of electromagnet stroke for circuit breaker is proposed.The picture of the electromagnet is obtained by the measurement system and the pixel size of the electromagnet matching gap is calculated by the use of K-Means algorithm in combi-nation with the CLSD linear detection algorithm.In case of'on'operation of circuit breaker,the calculation of the electromagnet stroke can not be performed by the reference calibration method inside the operating mechanism box of the circuit breaker.The calibration is performed by the vernier caliper in the experimental condition in combina-tion with accurate positioning principle of laser sensor to obtain the pixel equivalent at a fixed distance,thereby calcu-lating actual stoke of the electromagnet.The effectiveness of the method is verified by comparing the experimental measurement result at site and that of filler gauge.关键词
高压断路器/电磁铁行程/K-Means聚类/CLSD算法Key words
high-voltage circuit breaker/stroke of electromagnet/K-Means clustering/CLSD algorithm引用本文复制引用
刘幸,刘青,杨鼎革,刘鹏伟,杜光辉,吴勇,杨佳仪..高压断路器弹簧操动机构分闸电磁铁行程非接触式精确测量[J].高压电器,2024,60(7):122-127,6.基金项目
国家自然科学基金资助项目(51807075). Project Supported by National Natural Science Foundation of China(51807075). （51807075）
