Invention Grant
- Patent Title: Power conversion device, power conversion method and program
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Application No.: US17386581Application Date: 2021-07-28
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Publication No.: US11545924B2Publication Date: 2023-01-03
- Inventor: Kentaro Inomata , Akira Yamazaki
- Applicant: KABUSHIKI KAISHA YASKAWA DENKI
- Applicant Address: JP Kitakyushu
- Assignee: KABUSHIKI KAISHA YASKAWA DENKI
- Current Assignee: KABUSHIKI KAISHA YASKAWA DENKI
- Current Assignee Address: JP Kitakyushu
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JPJP2020-127225 20200728
- Main IPC: H02P27/08
- IPC: H02P27/08 ; H02P21/14
Abstract:
A power conversion device includes processing circuitry that estimates a magnet magnetic flux of an electric motor based on a d-axis magnetic flux generated in the electric motor, a d-axis inductance of the electric motor, and a d-axis current flowing in the electric motor, estimates a q-axis inductance of the electric motor based on a q-axis magnetic flux generated in the electric motor and a q-axis current flowing in the electric motor, estimates a drive force of the electric motor based on the magnet magnetic flux and the q-axis inductance, and corrects a current command such that the drive force follows a drive force command.
Public/Granted literature
- US20220038040A1 POWER CONVERSION DEVICE, POWER CONVERSION METHOD AND PROGRAM Public/Granted day:2022-02-03
Information query
