Title:
ROTARY ELECTRIC MACHINE CONTROL DEVICE, ROTARY ELECTRIC MACHINE CONTROL METHOD, AND ROTARY ELECTRIC MACHINE CONTROL PROGRAM
Document Type and Number:
Japanese Patent JP2023081073
Kind Code:
A
Abstract:
To provide a rotary electric machine control device for performing dead time control such that efficiency deterioration of weaker field control is inhibited.SOLUTION: A control device (37) for a rotary electric machine (20) performs dead time control of simultaneously turning off an upper switching element (SWH) and a lower switching element (SWL) of a driving circuit (30) driving the rotary electric machine. The control device includes a calculation unit that calculates a phase difference parameter correlated with the phase difference between an input voltage to the rotary electric machine and an actual current flowing through the rotary electric machine, and a control unit that performs weaker field control on the rotary electric machine on the basis of a voltage fluctuation caused by the dead time control and the phase difference parameter calculated by the calculation unit.SELECTED DRAWING: Figure 1
Inventors:
WATANABE TAKAHIRO
AOKI YASUAKI
AOKI YASUAKI
Application Number:
JP2021194757A
Publication Date:
June 09, 2023
Filing Date:
November 30, 2021
Export Citation:
Assignee:
DENSO CORP
International Classes:
H02P21/12
Attorney, Agent or Firm:
Tsuyoshi Yamada
Kyoko Hino
Hiroshi Matsuda
Yusuke Kita
Naoto Shioya
Kyoko Hino
Hiroshi Matsuda
Yusuke Kita
Naoto Shioya