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Patent Searching and Data


Title:
DRIVE DEVICE, FLUID UTILIZATION DEVICE, AND AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2019/142301
Kind Code:
A1
Abstract:
This drive device (100) is provided with a current detection unit (4a) that detects a current flowing through a main-side synchronous motor (1a), and a current detection unit (4b) that detects a current flowing through a sub-side synchronous motor (1b). The drive device (100) is also provided with a magnetic pole position estimation unit (5a) that estimates the position of a magnetic pole of a rotor provided to the main-side synchronous motor (1a), and a magnetic pole position estimation unit (5b) that estimates the position of a magnetic pole of a rotor provided to the sub-side synchronous motor (1b). The drive device (100) is also provided with a current control unit (6) that outputs a voltage command, and a sub-side-torque-current pulsation component extraction unit (7) that extracts a pulsation component. The drive device (100) is characterized by being provided with a subtracter (8) that establishes an angle difference, and a magnetic flux current command determination unit (9) that determines a magnetic flux current command.

Inventors:
TAKAHASHI, Kenji (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
MASUMURA, Tsukasa (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
TSUMURA, Akihiro (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
WADA, Yasuhiko (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
HONGYO, Akane (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2018/001458
Publication Date:
July 25, 2019
Filing Date:
January 18, 2018
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
H02P5/46; H02P5/52; H02P21/18; H02P21/22; H02P21/26
Foreign References:
JP2003116293A2003-04-18
JP2014217226A2014-11-17
JP2012196091A2012-10-11
JP2013141345A2013-07-18
US20070273310A12007-11-29
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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