CAJ | 학술논문

大型电力变压器冷却装置用交流继电器的运行性能及其状态监测对变压器安全稳定运行至关重要. 针对其交流继电器性能参数常规提取方法不准确的问题,文章提出了一种基于小波去噪和结合交流电压信号峰值快速计算的交流继电器性能参数的提取方法. 通过对交流电压信号峰值快速计算方法的仿真以及实际变压器冷却装置用交流继电器性能的测试,结果比较表明文章提出增加小波去噪环节的交流继电器性能参数提取方法的有效性和准确性.
대형전력변압기냉각장치용교류계전기적운행성능급기상태감측대변압기안전은정운행지관중요. 침대기교류계전기성능삼수상규제취방법불준학적문제,문장제출료일충기우소파거조화결합교류전압신호봉치쾌속계산적교류계전기성능삼수적제취방법. 통과대교류전압신호봉치쾌속계산방법적방진이급실제변압기냉각장치용교류계전기성능적측시,결과비교표명문장제출증가소파거조배절적교류계전기성능삼수제취방법적유효성화준학성.
Operation performance and condition monitoring of AC relay in power transformer cooling equipment is vital to the safe and stable operation of a large power transformer.Regarding as the incorrect issue of performance parame-ters of AC relay based on the traditional extracted method, an extracted method is proposed by using the fast amplitude calculation method of alternating current voltage signals combined the wavelet de-noising part in this paper.By simu-lation on the fast amplitude calculation method of alternating current voltage signals and the testing and comparison on the practical AC relay for a power transformer cooling equipment, the results and comparison have shown that by adding the wavelet de-noising part, the proposed performance parameters extraction method of AC relay has better a-vailability and accuracy.