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1. (IN201747019235) ELECTRIC MOTOR DIAGNOSIS DEVICE

المكتب : الهند
رقم الطلب: 201747019235 تاريخ الطلب: 29.05.2017
رقم النشر: 201747019235 تاريخ النشر: 16.06.2017
نوع النشر: A
:مرجعية معاهدة التعاون بشأن البراءات رقم الطلب:PCTJP2015060055؛ رقم النشر:       اضغط لرؤية المعلومات
التصنيف الدولي للبراءات:
G01R 31/34
G01R 31/02
H02P 23/00
Description not available in lang arDescription not available in lang arDescription not available in lang ar
المتقدمون: MITSUBISHI ELECTRIC CORPORATION
المخترعون: MIYAUCHI, Toshihiko
KANEMARU, Makoto
MORI, Mitsugi
TSUKIMA, Mitsuru
بيانات الأولوية: 2014-249621 10.12.2014 JP
العنوان: (EN) ELECTRIC MOTOR DIAGNOSIS DEVICE
الملخص:
(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.
:نشرت أيضا باسم
JPWO2016092871KR1020170074986JP6099852CN107155353EP3232215ID2018/00730
TH1701001492AWO/2016/092871