Research on the mechanical state parameter extraction method of high voltage circuit breakers
High voltage circuit breakers play an important role in the power system. So it is necessary to implement the state detection of breakers in order to ensure stable and reliable running of the grid. The purpose of state detection is to provide reliable basis of maintenance by extracting mechanical state parameters accurately. This paper mainly focuses on the coil current signal feature extraction algorithm. To settle the problem of too much noise mixed with the current signal and signal distortion, the discrete wavelet transform algorithm is used to extract the coil current signal parameters. This paper also designs the FIR filter to extract stroke and speed parameters from travel-time waveform. The experiments show that the difference between the theoretical results and test results processed by the method in this paper is very small and the test results are able to accurately reflect operation states and mechanical features of high voltage circuit breakers.
high voltage circuit breaker mechanical state parameters wavelet denoising FIR filter
Yang Fan Hu Xiaoguang
School of Automation Science and Electrical EngineeringBeihang UniversityBeijing, China School of Automation Science and Electrical Engineering Beihang University Beijing, China
国际会议
IEEE 10th International Conference on Industrial Informatics(第十届IEEE工业信息学国际学术会议 INDIN2012)
北京
英文
1062-1066
2012-07-25（万方平台首次上网日期，不代表论文的发表时间）