Title:
短絡検知装置及び短絡検知方法
Document Type and Number:
Japanese Patent JP7226589
Kind Code:
B2
Abstract:
The short-circuit detection device according to the present disclosure includes: a signal acquisition unit configured to acquire, from a magnetic flux detector configured to detect a magnetic flux generated in a gap between a rotor and a stator of a rotary electric machine, one detected signal based on the magnetic flux and set the one detected signal as a first detected signal and a second detected signal; a signal processing unit configured to perform frequency analysis on the first detected signal, and generate and decode a voltage signal simulating a voltage state assumed in a normal case; and a signal comparison unit configured to perform comparison between a decoded signal obtained through the decoding by the signal processing unit and the second detected signal transmitted from the signal acquisition unit, to detect a short-circuit in a field winding of the rotary electric machine.
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Inventors:
Yuji Takizawa
Haruyuki Yoneya
Atsushi Yamamoto
Maeda Susumu
Nobuaki Kazuki
Haruyuki Yoneya
Atsushi Yamamoto
Maeda Susumu
Nobuaki Kazuki
Application Number:
JP2021566702A
Publication Date:
February 21, 2023
Filing Date:
December 26, 2019
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H02K19/36; G01R31/52; G01R31/72; H02K11/20; H02K19/22; H02P29/024
Domestic Patent References:
| JP2015219229A | ||||
| JP2019060728A |
Attorney, Agent or Firm:
Yasutaka Kuratani
Matsui Shigeaki
Kenro Date
Matsui Shigeaki
Kenro Date
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