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Title:
ROTATING MACHINE CONTROL DEVICE AND ELECTRIC POWER STEERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/219794
Kind Code:
A1
Abstract:
This rotating machine control device comprises: a first inverter that applies an AC voltage to a three-phase winding of a first system of a rotating machine on the basis of a first DC voltage output by a DC power supply of the first system; a second inverter that applies an AC voltage to a three-phase winding of a second system of the rotating machine on the basis of a second DC voltage output by a DC power supply of the second system; a first control unit; and a second control unit. When the DC voltage of the first system is higher than the DC voltage of the second system, the first control unit limits, by means of the DC voltage of the second system, a first system voltage command related to the voltage applied to the three-phase winding of the first system, and at the same time, generates, as a command value to the inverter of the first system, a value obtained by normalizing the first system voltage command by means of the DC voltage of the first system. When the DC voltage of the second system is higher than the DC voltage of the first system, the second control unit limits, by means of the DC voltage of the first system, a second system voltage command related to the voltage applied to the three-phase winding of the second system, and at the same time, generates, as a command value to the inverter of the second system, a value obtained by normalizing the second system voltage command by means of the DC voltage of the second system.

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Inventors:
TAMARU TOMOHIRO (JP)
MORI TATSUYA (JP)
FUJIMOTO CHIAKI (JP)
Application Number:
PCT/JP2021/015673
Publication Date:
October 20, 2022
Filing Date:
April 16, 2021
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02P25/22
Domestic Patent References:
WO2021059436A12021-04-01
WO2018088465A12018-05-17
Foreign References:
JP2018130007A2018-08-16
JP2011195089A2011-10-06
Attorney, Agent or Firm:
NISHIZAWA Kazuyoshi et al. (JP)
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