公开(公告)号：US11936316B2

公开(公告)日：2024-03-19

申请号：US17863335

申请日：2022-07-12

申请人： STEERING SOLUTIONS IP HOLDING CORPORATION

发明人： Pawel Szymula ,  Prerit Pramod

IPC分类号： H02P23/14 ,  H02P25/022 ,  H02P27/08

CPC分类号： H02P23/14 ,  H02P25/022 ,  H02P27/08

摘要： A method of controlling a permanent magnet synchronous machine (PMSM) includes: determining an estimated back-electromotive force (BEMF) generated in windings of the PMSM based on an estimated voltage applied to the windings of the PMSM, an estimated motor current of the PMSM, an estimated motor circuit resistance, and an estimated synchronous inductance of the PMSM. The method also includes determining an estimated permanent magnet (PM) flux linkage in the PMSM based on the estimated motor current of the PMSM; determining a BEMF correction term based on the estimated PM flux linkage; and determining an estimated rotor flux space vector based on the estimated BEMF and the BEMF correction term.

公开(公告)号：US20240022194A1

公开(公告)日：2024-01-18

申请号：US17863335

申请日：2022-07-12

申请人： STEERING SOLUTIONS IP HOLDING CORPORATION

发明人： Pawel Szymula ,  Prerit Pramod

IPC分类号： H02P23/14 ,  H02P27/08 ,  H02P25/022

CPC分类号： H02P23/14 ,  H02P27/08 ,  H02P25/022

摘要： A method of controlling a permanent magnet synchronous machine (PMSM) includes: determining an estimated back-electromotive force (BEMF) generated in windings of the PMSM based on an estimated voltage applied to the windings of the PMSM, an estimated motor current of the PMSM, an estimated motor circuit resistance, and an estimated synchronous inductance of the PMSM. The method also includes determining an estimated permanent magnet (PM) flux linkage in the PMSM based on the estimated motor current of the PMSM; determining a BEMF correction term based on the estimated PM flux linkage; and determining an estimated rotor flux space vector based on the estimated BEMF and the BEMF correction term.