Invention Grant
- Patent Title: Permanent magnet electric machine control
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Application No.: US17746189Application Date: 2022-05-17
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Publication No.: US11881796B2Publication Date: 2024-01-23
- Inventor: Shangjian Dai , Zhigang Sun , Ellis Fh Chong , Jiabin Wang
- Applicant: ROLLS-ROYCE plc
- Applicant Address: GB London
- Assignee: ROLLS ROYCE PLC
- Current Assignee: ROLLS ROYCE PLC
- Current Assignee Address: GB London
- Agency: Crowell & Moring LLP
- Priority: GB 08143 2021.06.08
- Main IPC: H02P21/00
- IPC: H02P21/00 ; H02P21/22 ; B64D27/24 ; B64D31/06 ; H02P101/30

Abstract:
A method of controlling a permanent magnet synchronous electric machine (PMSM) drive using a Deadbeat Predictive Current Control (DBPCC) scheme is provided. The method comprises: determining d-axis and q-axis stator current values (id, iq) representative of a measured PMSM current; determining d-axis and q-axis reference current values (id*, iq*); based on the stator current values (id, iq) and the reference current values (id*, iq*), determining d-axis and q-axis current correction values (Cd, Cq); determining corrected reference current values (id**, iq**) as a sum of the reference current values (id*, iq*) and the current correction values (Cd, Cq); and controlling the PMSM drive using the corrected reference current values (id**, iq**) as reference current inputs of the DBPCC scheme. A controller for performing the method; a system comprising the controller, a PMSM and associated power electronics; and a computer program for performing the method are also provided.
Public/Granted literature
- US20220399841A1 PERMANENT MAGNET ELECTRIC MACHINE CONTROL Public/Granted day:2022-12-15
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