Invention Grant
- Patent Title: Motor control device, motor control system, and motor control method
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Application No.: US17295217Application Date: 2019-01-07
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Publication No.: US11831263B2Publication Date: 2023-11-28
- Inventor: Jungdae Lee , Sanggi Ko , Jaeyoon Oh , Gilsu Lee
- Applicant: LG ELECTRONICS INC.
- Applicant Address: KR Seoul
- Assignee: LG Electronics Inc.
- Current Assignee: LG Electronics Inc.
- Current Assignee Address: KR Seoul
- Agency: Fish & Richardson P.C.
- Priority: KR 20180143813 2018.11.20
- International Application: PCT/KR2019/000192 2019.01.07
- International Announcement: WO2020/105795A 2020.05.28
- Date entered country: 2021-12-06
- Main IPC: H02P27/06
- IPC: H02P27/06 ; H02M1/14 ; H02P101/45
Abstract:
The present specification relates to a motor control device, a motor control system, and a motor control method. The motor control device measures a ripple voltage of a DC link capacitor to determine an appropriate switching frequency according to the ripple voltage, and causes a plurality of arithmetic processing units to selectively control a switching operation of the switching unit according to the determined switching frequency.
Public/Granted literature
- US20220085744A1 MOTOR CONTROL DEVICE, MOTOR CONTROL SYSTEM, AND MOTOR CONTROL METHOD Public/Granted day:2022-03-17
Information query
