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Patent Searching and Data


Title:
POWER CONVERSION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2018/087892
Kind Code:
A1
Abstract:
A power conversion apparatus (100) is provided with: a first inverter (5) that supplies AC power to a first three-phase winding wire (3); a second inverter (6) that supplies AC power to a second three—phase winding wire (4); a current detection circuit (40) that detects a current flowing between the first inverter (5) and the first three-phase winding wire (3) and a current flowing between the second inverter (6) and the second three—phase winding wire (4); and a control unit (11) that controls the first inverter (5) and the second inverter (6). The control unit (11) generates a carrier signal so as to reduce ripples of a current flowing through an electric motor (200) by detecting a frequency component having the maximum amplitude excluding a fundamental-wave component among frequency components included in the current detected by the current detection circuit (40).

Inventors:
TOYODOME, Shinya (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
UMEHARA, Shigeo (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
ARISAWA, Koichi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2016/083561
Publication Date:
May 17, 2018
Filing Date:
November 11, 2016
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
H02P27/06
Foreign References:
JP2001197779A2001-07-19
JPH09205797A1997-08-05
Attorney, Agent or Firm:
TAKAMURA, Jun (Sakai International Patent Office, Toranomon Mitsui Building 8-1, Kasumigaseki 3-chome, Chiyoda-k, Tokyo 13, 〒1000013, JP)
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