Title:
ROTARY ELECTRIC MACHINE SYSTEM
Document Type and Number:
Japanese Patent JP2020092501
Kind Code:
A
Abstract:
To suppress the generation of a torque pulsation due to a voltage limitation.SOLUTION: A rotary electric machine system calculates a d-axis voltage command value Vd* and a q-axis voltage command value Vq* (S304), and, when a combined voltage command value comprising the above-mentioned voltage command values as components, exceeds a prescribed upper limitation voltage (E×K) (S305:YES), the rotary electric machine system limits a magnitude of the combined voltage command value to the upper limitation voltage (E×K) or less (S306). At the time, the rotary electric machine system controls a field magnet current command value and a d-axis ratio, which is a ratio of the d-axis voltage command value Vd* to the combined voltage command value, so that variation in a winding inner magnetic flux, which is a magnetic flux passing in an axial line direction inside a field magnet winding, is more suppressed than in the case of performing a double holding control that holds the field magnet current command to be constant while also holding the d-axis ratio to be constant.SELECTED DRAWING: Figure 5
Inventors:
KAWAMURA TAKUYA
SUZUKI TAKUTO
FUJII ATSUSHI
SUZUKI TAKUTO
FUJII ATSUSHI
Application Number:
JP2018227256A
Publication Date:
June 11, 2020
Filing Date:
December 04, 2018
Export Citation:
Assignee:
DENSO CORP
International Classes:
H02P25/024; H02P21/26
Domestic Patent References:
| JP2000116170A | 2000-04-21 | |||
| JP2008141838A | 2008-06-19 | |||
| JP2011024276A | 2011-02-03 |
Attorney, Agent or Firm:
Tsuyoshi Yamada
Kyoko Hino
Hiroshi Matsuda
Yusuke Kita
Kyoko Hino
Hiroshi Matsuda
Yusuke Kita