公开(公告)号：EP3104152A1

公开(公告)日：2016-12-14

申请号：EP15170998.7

申请日：2015-06-08

申请人： ABB Technology Ltd

发明人： Peretti, Luca ,  Pathmanathan, Mehanathan ,  Ikram Ul Haq, Omer ,  Sahoo, Subrat

IPC分类号： G01M13/02 ,  G01M13/04 ,  G01M5/00

CPC分类号： G01R31/34 ,  G01M5/0066 ,  G01M13/028 ,  G01M13/045

摘要： The present disclosure relates to a method for determining an undesired condition in an electrical drive system comprising an electrical machine and an electrical drive, wherein the method comprises a) obtaining a measured signal of an electrical or mechanical parameter concerning the electrical drive system, b) obtaining a frequency spectrum of the measured signal, which frequency spectrum contains a measured frequency component, c) determining whether the measured frequency component is within a predetermined distance from a trend line, which trend line is associated with only one specific frequency component of the electrical or mechanical parameter present during a specific undesired condition,, d) on the condition that the measured frequency component is within the predetermined distance from the trend line increasing a counter associated with the trend line, g) repeating steps a) to d), wherein in case the counter reaches a predetermined number within a predetermined number of iterations of steps a) to d), and f) determining based on that the counter reaches the predetermined number that the electrical drive system is subjected to the undesired condition associated with the trend line.

摘要翻译： 本公开涉及用于在电驱动系统，其包括在电驱动电机和不希望的状况确定性采矿的方法，worin该方法包括a）获得的电的或机械的参数关于电驱动系统的测量的信号，b）中 获得所测量的信号，其频谱包含测量频率分量的频谱，c）中确定的采矿无论所测量的频率分量是从哪个趋势线与电的仅一个特定的频率分量相关联的趋势线的预定距离内 或特定的不希望的状态期间存在机械参数,, d）关于病情未见所测量的频率分量从趋势线增大与趋势线，克相关联的计数器的预定距离内）重复步骤a）至d），worin 在情况下，计数器达到它的预定数目内的预定数 基于计数器的步骤a）至d），和f）确定的操作采矿确实达到预定数量做了电驱动系统受到与趋势线相关联的不期望的状态。

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。