Title:
SHORT CIRCUIT DETECTION DEVICE AND SHORT CIRCUIT DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2020/208812
Kind Code:
A1
Abstract:
A short circuit detection device comprising: a signal acquisition unit that acquires a detection signal according to a magnetic flux from a magnetic flux detector that detects a magnetic flux generated in the air gap between a rotor and a stator of a rotating electrical machine; a signal processing unit that performs filter processing on the detection signal acquired by the signal acquisition unit and removes at least one component among the odd-order components included in the detection signal, and that generates a filtered signal which is the detection signal that has been subjected to the filter processing; and a short circuit detection unit that uses the filtered signal generated by the signal processing unit to detect the short circuiting of a field winding.
Inventors:
TAKIZAWA YUJI (JP)
KOMETANI HARUYUKI (JP)
MOTOYOSHI KENTA (JP)
YAMAMOTO ATSUSHI (JP)
MAEDA SUSUMU (JP)
MUROKI NOBUAKI (JP)
KOMETANI HARUYUKI (JP)
MOTOYOSHI KENTA (JP)
YAMAMOTO ATSUSHI (JP)
MAEDA SUSUMU (JP)
MUROKI NOBUAKI (JP)
Application Number:
PCT/JP2019/015984
Publication Date:
October 15, 2020
Filing Date:
April 12, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K11/20; G01R31/34; H02K19/36
Foreign References:
| JPS5384101A | 1978-07-25 | |||
| JP2004159496A | 2004-06-03 | |||
| JPS585682A | 1983-01-13 | |||
| JP2004304999A | 2004-10-28 | |||
| JP2009213346A | 2009-09-17 | |||
| JPS60167654A | 1985-08-31 | |||
| JPS55141083U | 1980-10-08 |
Attorney, Agent or Firm:
SOGA, Michiharu et al. (JP)
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