D19.5 - Suppressing EMI Noise Effect on Wireless Temperature Monitoring for Magnet of the Permanent Magnet Synchronous Motor

Thursday, March 26, 2026

12:00 PM - 1:45 PM CT

Location: Hemisfair Ballroom

Technical Dialogue Presenter(s)

Qingzheng Zhang (he/him/his)

Zhejiang University

Presentation

Co-Author(s)

KF

Kaiyuan Feng

College of Electrical Engineering Zhejiang University
CH

Changsheng Hu

Zhejiang University
YZ

Yang Zhang

Zhejiang University
YZ

Yao Zheng

Zhejiang University
MC

Min Chen

Zhejiang University
DX

Dehong Xu, PhD

Zhejiang University

An online detection of the rotor temperature of the Permanent-Magnet-Synchronous-Motor(PMSM) is investigated. By distributing the temperature sensors near the magnet in the rotor, more detailed rotor temperature change during the operation condition is detected. The temperature signals are processed and digitized by a signal acquisition board which is installed on one terminal of the rotor and rotates with the rotor. The rotor temperature data is transmitted in real time to the upper computer through Bluetooth. Because the motor will generate strong electromagnetic field in the air gap between the stator and the rotor when it operates at high power condition. The electromagnetic field may interfere the measuring of the temperature signals. The signal transfer path and the shield of the signal acquisition board are designed to avoid the EMI noise. A PMSM wireless rotor temperature monitoring system is built and integrated into a 30kW PMSM. The test result shows that measuring results is immune to EMI noise of PMSM.