公开(公告)号：WO2014048284A1

公开(公告)日：2014-04-03

申请号：PCT/CN2013/083977

申请日：2013-09-23

Applicant: SHENZHEN BYD AUTO R&D COMPANY LIMITED ,  BYD COMPANY LIMITED

Inventor： LUO, Hui ,  DU, Zhiyong ,  ZHOU, Xuguang ,  ZHANG, Xinxin ,  CHEN, Xing ,  XIAO, Kai ,  CHENG, Lipin

IPC: H02P6/18

CPC classification number: H02P6/12 ,  H02P6/182 ,  H02P6/34

Abstract: A method for checking an out-of-step of a synchronous motor includes: detecting electric degrees of the synchronous motor, in which the electric degrees comprise at least a first electric degree and a second electric degree detected at a preset interval, and the second electric degree is detected after the first electric degree; comparing the first electric degree with the second electric degree to obtain a comparing result; and determining that the synchronous motor is out of step when the comparing result satisfies a preset requirement. It is determined that the synchronous motor is out of step when the electric degree keeps unchanged or decreases progressively, or an increment of the electric degree is very small.

Abstract translation: 用于检查同步电动机的失步的方法包括：检测同步电动机的电度，其中电度至少包括以预设间隔检测的第一电度和第二电度，第二 在第一电度之后检测电度; 将第一电度与第二电度进行比较以获得比较结果; 并且当比较结果满足预设要求时，确定同步电动机不合格。 当电度保持不变或逐渐减小时，同步电动机不合格，或者电度的增量非常小。

公开(公告)号：WO2014048283A1

公开(公告)日：2014-04-03

申请号：PCT/CN2013/083975

申请日：2013-09-23

Applicant: SHENZHEN BYD AUTO R&D COMPANY LIMITED ,  BYD COMPANY LIMITED

Inventor： LUO, Hui ,  DU, Zhiyong ,  ZHOU, Xuguang ,  ZHANG, Xinxin ,  CHEN, Xing ,  YANG, Taotao ,  CHENG, Lipin

IPC: H02P6/00

CPC classification number: H02P6/12 ,  H02P6/34 ,  H02P29/0241

Abstract: A method for checking an out-of-step of a synchronous motor includes detecting three-phase currents of the synchronous motor; determining whether a relationship between the three-phase currents satisfies a preset requirement; and if no, determining that the synchronous motor is out of step. It is determined that the synchronous motor is out of step when amplitudes of each current of the three-phase currents are not equal or when the phase difference between the three-phase currents is not 120°.

Abstract translation: 用于检查同步电动机的失步的方法包括检测同步电动机的三相电流; 确定三相电流之间的关系是否满足预设要求; 并且如果否，确定同步电动机不合格。 确定当三相电流的每个电流的幅度不相等时或当三相电流之间的相位差不是120°时，同步电动机失步。

公开(公告)号：WO2011023137A1

公开(公告)日：2011-03-03

申请号：PCT/CN2010/076444

申请日：2010-08-29

Applicant: BYD COMPANY LIMITED ,  TANG, Xiaohua ,  DU, Zhiyong ,  ZHOU, Yongzhuang ,  XIA, Cong ,  CHENG, Lipin ,  MA, Hui

Inventor： TANG, Xiaohua ,  DU, Zhiyong ,  ZHOU, Yongzhuang ,  XIA, Cong ,  CHENG, Lipin ,  MA, Hui

IPC: G01R31/34 ,  G01R19/145 ,  H02H3/13

CPC classification number: H02H7/09 ,  G01R31/026 ,  G01R31/343 ,  H02P29/0243

Abstract: An open phase detection system and method for a three-phase motor (5) are provided, and the system comprises: a signal generating unit (1) coupled to the three-phase motor (5) and configured to generate a driving signal for driving the three-phase motor (5), a detecting unit (2) coupled to the signal generating unit (1) and configured to detect whether the signal generating unit (1) generates the driving signal and to detect three-phase current values of the three-phase motor (5), and a determining unit (3) coupled to the detecting unit (2) and configured to determine whether the three-phase motor (5) has open phase according to the three phase current values detected by the detecting unit (2) when the driving signal was detected.

Abstract translation: 提供了一种用于三相电动机（5）的开放相位检测系统和方法，该系统包括：信号发生单元（1），耦合到三相电动机（5）并被配置为产生驱动信号 所述三相电动机（5），耦合到所述信号发生单元（1）的检测单元（2），用于检测所述信号产生单元（1）是否产生所述驱动信号，并且检测所述三相电动机 三相电动机（5）和耦合到所述检测单元（2）的确定单元（3），并且被配置为根据由所述检测单元检测到的三相电流值来确定所述三相电动机（5）是否具有断开相位 检测到驾驶信号时的单位（2）。