Title:
電力変換装置
Document Type and Number:
Japanese Patent JP4912516
Kind Code:
B2
Abstract:
Included are a power converter 2 for driving an induction machine 1, a control unit 40 for controlling the power converter 2, and a brake force command computing unit 6 for computing a brake force command. The control unit 40 includes a regenerative brake force computing unit 12. The regenerative brake force computing unit 12 computes a first regenerative brake force BP1 that can be determined based on a d-axis current detected value id, a q-axis current detected value iq, a d-axis voltage command Vd*, a q-axis voltage command Vq*, and speed information É and also computes a second regenerative brake force BP2 that can be determined based on phase current information Iu to Iw, the d-axis voltage command Vd*, the q-axis voltage command Vq*, and the speed information É, and then selects any one of the first regenerative brake force BP1 and the second regenerative brake force BP2 according to the speed information É and outputs the selected one to the brake force command computing unit 6.
Inventors:
Masaki Kono
Keita Hatanaka
Keita Hatanaka
Application Number:
JP2011545012A
Publication Date:
April 11, 2012
Filing Date:
December 08, 2009
Export Citation:
Assignee:
Mitsubishi Electric Corporation
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
Domestic Patent References:
| JP2002064901A | 2002-02-28 | |||
| JPH03164003A | 1991-07-16 | |||
| JPH1014273A | 1998-01-16 |
Attorney, Agent or Firm:
Hiroaki Sakai