专利名称：A method for the diagnostics of
electromechanical system based onimpedance analysis
发明人：Ottewill, James,Orman, Maciej,Pinto, Cajetan申请号：EP12460078.4申请日：20121026公开号：EP2725370A1公开日：20140430
专利附图：
摘要：The present invention is concerned with a method for diagnosing the state ofelectromechanical systems in which electrical rotating machinery is used on the basis of
analysis of impedance estimated from at least two currents and two voltages, measuredduring an operation of the electromechanical system. The method may be especiallyuseful in the condition monitoring of electric motors and generators. The inventioncombines the information from both the voltage and current signals measurable at themotor terminals. Specifically, the measurements of voltage and current from two ormore phases of a polyphase electrical machine are combined to estimate the impedanceof the machine, impedance being the resistance to the flow of current that a circuitexhibits when a voltage is applied to it.
申请人：ABB Technology AG
地址：Affolternstrasse 44 8050 Zürich CH
国籍：CH
代理机构：Chochorowska-Winiarska, Krystyna
更多信息请下载全文后查看
因篇幅问题不能全部显示，请点此查看更多更全内容