Wireless Torque Pulsations Measurement System for PMSMs

Abstract

Torque pulsations are one of the major concerns in permanent magnet synchronous machines (PMSMs) operation. Torque pulsations can be mitigated by proper machine design and/or by control. Independently of the means being used, precise measurement of torque pulsation is highly desirable for the validation and improvement of machine designs and control strategies. This paper proposes a non-invasive, wireless vibration measurement system aimed to provide precise estimates of torque pulsations. The system is mounted on the rotor shaft of the PMSM, without including any mechanical coupling, providing on-line torque pulsation measurement and without interfering with the normal operation of the machine. The proposed concept has been validated experimentally. 1

Wireless Torque Pulsations Measurement System for PMSMs

“…This paper presents a wireless, shaft-mounted torque pulsation measurement system [30]. The system is mainly intended for the assessment/optimization of machine designs and control strategies aimed to provide smooth torque, i.e.…”