T22.1 - Impact of Position Measurement Delay Angle on Performance of PMSM Drives for Electric Power Steering in a Wide Speed Range

Wednesday, March 19, 2025

1:30 PM – 1:50 PM ET

Location: Level Three, A315

Technical Lecture Presenter(s)

Yingzhe Wu (he/him/his)

Shanghai Gatek Automotive Electronics Company Ltd.

Presentation Paper

Co-Author(s)

HZ

Hengbin Zhang

University of Electronic Science and Technology of China
YX

Yuxiang Xue

University of Electronic Science and Technology of China
LW

Lisheng Wang

Shanghai Gatek Automotive Electronics Company Ltd.
SY

Shan Yin

Huawei Technologies Company Ltd.
HL

Hui Li

University of Electronic Science and Technology of China

Position measurement delay angle plays a significant role in PMSM drives, especially when the motor rotating with higher speed. In this digest, impact of such delay angle on performance of PMSM drives for electric power steering (EPS) in a wide speed range has been elaborated theoretically and verified experimentally. Meanwhile, compensation method of position measurement delay angle has also been demonstrated. According to relative experiment results, it is noted that the motor can operate stably in a wide speed range with an appropriate delay compensation based on the calibrated position measurement delay angle. On the contrary, the motor will be out of control in deep flux weakening (FW) region without position measurement delay angle compensation.