基于小波分析在三相同步防爆发电机突然短路参数辨识中的应用  

Application of Wavelet Analysis in Parameter Identification of Sudden Short Circuit of Three-Phase Synchronous Explosion-Proof Generator

作　　者：黄长铎 郭克征 李锟鹏 杨晨瑜 Huang Chang-duo;Guo Ke-zheng;Li Kun-peng;Yang Chen-yu(Wolong Electric Nanyang Explosion Protection Group Co.,Ltd.,Nanyang,Henan 473000)

机构地区：[1]卧龙电气南阳防爆集团股份有限公司,河南南阳473008

出　　处：《电气防爆》2018年第4期1-4,共4页Electric Explosion Protection

摘　　要：三相突然短路试验是测量同步电机参数常规试验的传统方法,在实际试验中,波形中杂波成分较大,波峰经常出现尖峰,这些现象对手工计算造成了很大困扰,常常造成较大误差结果。用Matlab小波工具对短路电流的波形进行去噪,将原波形中谐波成分及噪声电流成分滤除。结果表明:数据精确,一致性较好。The three-phase sudden short-circuit test is a traditional method for measuring the parameters of synchronous motor parameters. In the actual test,the clutter and spikes in the peaks cause great troubles for manual calculation,they often cause large errors. The Matlab wavelet tool is used to denoise the waveform of the short-circuit current,and the harmonic components and noise current in the original waveform are filtered out,the data accuracy is improved and the consistency is good.

关 键 词：三相突然短路 小波分析 噪声电流 

分 类 号：TM341[电气工程—电机]