Title:
DRIVE DEVICE FOR PERMANENT-MAGNET SYNCHRONOUS MACHINE, TORQUE COMPENSATION METHOD FOR PERMANENT-MAGNET SYNCHRONOUS MACHINE, AND ELECTRIC VEHICLE
Document Type and Number:
WIPO Patent Application WO/2020/202655
Kind Code:
A1
Abstract:
A drive device for a permanent-magnet synchronous machine has a power converter 102 that drives a permanent-magnet synchronous machine 103, and a controller 101 that controls the power converter 102. The controller 101 comprises: a torque correction unit 110 that corrects an inputted torque command value; and a current command calculation unit 111 that generates, on the basis of the torque command value corrected by the torque correction unit 110, a current command value for controlling driving of the permanent-magnet synchronous machine 103. The torque correction unit 110 corrects the torque command value on the basis of a value associated with the magnetic flux of the permanent-magnet synchronous machine 103, and the current command value generated by the current command calculation unit 111.
Inventors:
SAKAI TOSHIFUMI (JP)
ITO MAKOTO (JP)
IWAJI YOSHITAKA (JP)
KUNIHIRO NAOKI (JP)
SHINOMIYA TAKESHI (JP)
ITO MAKOTO (JP)
IWAJI YOSHITAKA (JP)
KUNIHIRO NAOKI (JP)
SHINOMIYA TAKESHI (JP)
Application Number:
PCT/JP2019/049067
Publication Date:
October 08, 2020
Filing Date:
December 13, 2019
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
B60L15/20; B60L9/18; H02M7/48; H02P6/08; H02P21/06; H02P27/06; H02P29/66
Foreign References:
| JPH08331900A | 1996-12-13 | |||
| JP2016086634A | 2016-05-19 | |||
| US20160056738A1 | 2016-02-25 | |||
| JP4462207B2 | 2010-05-12 | |||
| JP2009261182A | 2009-11-05 | |||
| JP2000184766A | 2000-06-30 | |||
| JP2006304441A | 2006-11-02 |
Other References:
See also references of EP 3950403A4
Attorney, Agent or Firm:
SUNNEXT INTERNATIONAL PATENT OFFICE (JP)
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