Title:
MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/070731
Kind Code:
A1
Abstract:
Disclosed is a motor control device that is capable of estimating and compensating for a gain error of an electric current sensor in a stable and accurate manner, without being equipped with a special operating sequence. This motor control device (1) generates a control signal (D*uvw) for an inverter (4) that drives an AC motor (5), the motor control device comprising: an error calculation unit (100) that calculates a gain error (erruvw) of an electric current sensor (11) by using an amplitude value of a three-phase motor electric current detected by the electric current sensor; and a correction amount calculation unit (200) that, on the basis of the gain error estimated by the error calculation unit, calculates electric current correction amounts (muvw, Δidp) for compensating for the gain error.
Inventors:
TAKEDA KODAI (JP)
TANIGUCHI SHUN (JP)
MATSUO KENTARO (JP)
HATSUSE WATARU (JP)
TANIGUCHI SHUN (JP)
MATSUO KENTARO (JP)
HATSUSE WATARU (JP)
Application Number:
PCT/JP2023/033547
Publication Date:
April 04, 2024
Filing Date:
September 14, 2023
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
H02P21/05; H02P23/04; H02P27/06
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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