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Patent Searching and Data


Title:
ELECTRIC MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/162989
Kind Code:
A1
Abstract:
This electric motor control device comprises: a hormonic voltage calculation unit for calculating, on a two-phase rotational coordinate system synchronized with a rotor phase, a harmonic voltage to be added to a fundamental wave voltage command value; and a harmonic phase delay compensation unit for compensating a phase delay during calculation in the hormonic voltage calculation unit on the basis of the harmonic order of the harmonic voltage and the electrical angular frequency of the fundamental wave voltage.

Inventors:
MATSUO KENTARO (JP)
Application Number:
PCT/JP2021/032028
Publication Date:
August 04, 2022
Filing Date:
August 31, 2021
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Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
H02P21/05; H02P21/22; H02P27/06
Domestic Patent References:
WO2017064946A12017-04-20
Foreign References:
JP2007006645A2007-01-11
JP2016082662A2016-05-16
JP2016032407A2016-03-07
Attorney, Agent or Firm:
SUNNEXT INTERNATIONAL PATENT OFFICE (JP)
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