Invention Grant
- Patent Title: Motor control device
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Application No.: US17749877Application Date: 2022-05-20
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Publication No.: US11705845B2Publication Date: 2023-07-18
- Inventor: Takami Suzuki
- Applicant: Hitachi Astemo, Ltd.
- Applicant Address: JP Hitachinaka
- Assignee: HITACHI ASTEMO, LTD.
- Current Assignee: HITACHI ASTEMO, LTD.
- Current Assignee Address: JP Hitachinaka
- Agency: Cantor Colburn LLP
- Priority: JP 21090898 2021.05.31
- Main IPC: H02P21/00
- IPC: H02P21/00 ; H02P21/22 ; H02P27/08 ; H02M7/5387

Abstract:
This motor control device includes a vector control unit. The vector control unit includes: a current control unit that calculates a before-compensation d-axis voltage command value and a before-compensation q-axis voltage command value; a first non-interference control unit that calculates a first d-axis non-interference compensation value on the basis of a q-axis current command value to compensate for the before-compensation d-axis voltage command value and calculates a first q-axis non-interference compensation value on the basis of a d-axis current command value to compensate for the before-compensation q-axis voltage command value; and a second non-interference control unit that cancels out an interference component of a d-axis current generated in a specific rotation range of a motor with a q-axis current and an interference component of the q-axis current generated in the specific rotation range with the d-axis current by using a variable integral gain varying depending on a motor rotation speed.
Public/Granted literature
- US20220385219A1 MOTOR CONTROL DEVICE Public/Granted day:2022-12-01
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