【摘要】 针对国内外电机故障检测的现状,本文提出以测试电机的三相电流噪声作为电机故障特征的检测方法.利用现场测试的三相电机电流噪声信号,建立电机系统的多元时序模型,以模型的残差序列{A_t}作为故障的总体检验指标,分析残差序列本身的性质,把多元问题化为一元问题,从而能正确的检验运行中电机故障.更多还原

【Abstract】 Based on the status of the examination of the motor faults both at home andabroad,this paper puts forward a set of new methods of testing the noise ofthree-phase motor current which shows the characteristics of the motorfaults. Multi-variate time series models of the motor system is established byuse of the three-phase current noise source of the site teast,with the residualserises {At} as a total tesing findxes. The paper also discusses the characteris-tics of the series itself,changing the multivarite to the monistical,which en-ables us to examlne motor fault correctly.更多还原