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1. (IN201747019235) ELECTRIC MOTOR DIAGNOSIS DEVICE

专利局 : 印度
申请号: 201747019235 申请日: 29.05.2017
公布号: 201747019235 公布日: 16.06.2017
公布类型: A
专利合作条约参考号: 申请号:PCTJP2015060055;公布号: 单击查看数据
国际专利分类:
G01R 31/34
G01R 31/02
H02P 23/00
G PHYSICS
01
用于测量的传感器,如敏感元件
R
测量电变量;测量磁变量
31
电性能的测试装置;电故障的探测装置;以所进行的测试在其他位置未提供为特征的电测试装置
34
电机的测试
G PHYSICS
01
用于测量的传感器,如敏感元件
R
测量电变量;测量磁变量
31
电性能的测试装置;电故障的探测装置;以所进行的测试在其他位置未提供为特征的电测试装置
02
对电设备、线路或元件进行短路、断路、泄漏或不正确连接的测试
H 电学
02
发电、变电或配电
P
电动机、发电机或机电变换器的控制或调节;控制变压器、电抗器或扼流圈
23
以不同于矢量控制的控制方法为特征的控制交流电动机的装置或方法
申请人: MITSUBISHI ELECTRIC CORPORATION
发明人: MIYAUCHI, Toshihiko
KANEMARU, Makoto
MORI, Mitsugi
TSUKIMA, Mitsuru
优先权数据: 2014-249621 10.12.2014 JP
标题: (EN) ELECTRIC MOTOR DIAGNOSIS DEVICE
摘要:
(EN) ABSTRACTShort-circuit diagnosis devices for electric motor stator windings have a difficulty in correctly, highly accurately detecting winding short-circuit malfunction, as a result of influence of load torque variation, power source imbalance, and contact failures on calculation parameters.An electric motor diagnosis device includes a logical calculation unit (10) for performing determination of a winding short-circuit abnormality in an electric motor by receiving outputs from a current detection circuit (9) for detecting a current of the electric motor (6) and from a voltage detection circuit (8) for detecting a voltage of the electric motor (6), and a display unit (13) for displaying occurrence of an abnormality and an external output unit (15) for reporting to the outside the occurrence of the abnormality, when the logical calculation unit (10) detects the abnormality in the electric motor. The logical calculation unit (10) determines and detects a winding short-circuit by distinguishing the winding short-circuit from power source imbalance, even when a load torque varies during operation of the electric motor, on the basis of a reverse-phase current, a reverse-phase voltage, a positive-phase current, and a reverse-phase admittance which are obtained through analysis of the voltage and the current of the electric motor.
也发表为:
JPWO2016092871KR1020170074986JP6099852CN107155353EP3232215ID2018/00730
TH1701001492AWO/2016/092871