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Title:
POWER CONVERSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/070651
Kind Code:
A1
Abstract:
The disclosed power conversion device is provided with: a power converter (2) that drives an induction machine (1); a control unit (40) that controls the power converter (2); and a braking power command computation unit (6) that computes a braking power command. The control unit (40) computes a determinable first regenerative braking power (BP1) on the basis of a d-axis current-detection value (id), a q-axis current-detection value (iq), a d-axis voltage command (Vd*), a q-axis voltage command (Vq*), and velocity information (ω), and computes a determinable second regenerative braking power (BP2) on the basis of phase current information (Iu-Iw), the d-axis voltage command (Vd*), the q-axis voltage command (Vq*), and the velocity information (ω). The control unit (40) has a regenerative braking power computation unit (12) that outputs to the braking power command computation unit (6) either the first regenerative braking power (BP1) or the second regenerative braking power (BP2) selected in response to the velocity information (ω).

Inventors:
KONO, Masaki (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
河野 雅樹 (〒10 東京都千代田区丸の内二丁目7番3号 三菱電機株式会社内 Tokyo, 〒1008310, JP)
Application Number:
JP2009/070563
Publication Date:
June 16, 2011
Filing Date:
December 08, 2009
Export Citation:
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Assignee:
Mitsubishi Electric Corporation (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
三菱電機株式会社 (〒10 東京都千代田区丸の内二丁目7番3号 Tokyo, 〒1008310, JP)
KONO, Masaki (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
International Classes:
H02P3/18; B60L7/14; H02P21/00; H02P21/14; H02P21/18; H02P21/20; H02P21/24; H02P21/36; H02P23/07; H02P23/14; H02P23/20; H02P27/06; H02P27/08
Foreign References:
JP2002064901A2002-02-28
JPH03164003A1991-07-16
JPH1014273A1998-01-16
JPH0731179A1995-01-31
JPH0731179A1995-01-31
JPH1014273A1998-01-16
Other References:
See also references of EP 2512026A4
Attorney, Agent or Firm:
SAKAI, Hiroaki (Sakai International Patent Office, Kasumigaseki Building2-5, Kasumigaseki 3-chome, Chiyoda-k, Tokyo 20, 〒1006020, JP)
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