公开(公告)号：EP2995967A1

公开(公告)日：2016-03-16

申请号：EP14184248.4

申请日：2014-09-10

申请人： ABB Technology Ltd

发明人： Rodriguez, Pedro ,  Sahoo, Subrat ,  Pinto, Cajetan

IPC分类号： G01R31/34 ,  H02P29/02

CPC分类号： G01R31/346 ,  G01R31/343 ,  H02P9/10 ,  H02P29/0243

摘要： The present disclosure relates to a method of determining an electro-mechanical fault condition in a synchronous machine having a stator and a rotor, and an exciter. The method comprises a) obtaining an exciter current signal which is a measurement of an exciter current through stationary windings of the exciter, b) transforming the exciter current signal to obtain an exciter current frequency spectrum, and c) determining whether an electro-mechanical fault condition is present, and a type of the electro-mechanical fault condition, based on harmonic content of the exciter current frequency spectrum. This disclosure further relates to a computer program product and to a synchronous machine electro-mechanical fault condition monitoring system.

摘要翻译： 本公开涉及一种在具有定子和转子以及励磁机的同步电机中确定机电故障状况的方法。 该方法包括：a）获得激励器电流信号，该激励器电流信号是通过激励器的静止绕组的激励器电流的测量，b）变换激励器电流信号以获得激励器电流频谱，以及c）确定机电故障 存在条件，以及基于激励器电流频谱的谐波含量的机电故障条件的类型。 本公开还涉及计算机程序产品和同步电机机电故障状态监视系统。

公开(公告)号：EP2919026A1

公开(公告)日：2015-09-16

申请号：EP14158820.2

申请日：2014-03-11

申请人： ABB Technology Ltd

发明人： Rodriguez, Pedro ,  Sahoo, Subrat

IPC分类号： G01R31/34 ,  H02P29/02

CPC分类号： G01R31/34 ,  G01R31/343 ,  H02P29/0241

摘要： The present disclosure relates to a method of determining a fault condition in a synchronous machine. The method comprises a) obtaining a field current signal and a shaft voltage signal of the synchronous machine, b) transforming the field current signal and the shaft voltage signal to obtain a field current frequency spectrum and a shaft voltage frequency spectrum, and c) determining whether a fault condition is present, and in case a fault condition is present identifying a type of the fault condition, based on harmonic content of the field current frequency spectrum and harmonic content of the shaft voltage frequency spectrum.

摘要翻译： 本公开涉及一种确定同步电机中的故障状况的方法。 该方法包括a）获得同步电机的励磁电流信号和轴电压信号，b）转换励磁电流信号和轴电压信号，获得励磁电流频谱和轴电压频谱，c）确定 基于现场频谱的谐波含量和轴电压频谱的谐波含量，是否存在故障条件，以及在存在故障状况的情况下识别故障状态的类型。