Permanent Magnet Synchronous Motor Vibration Measurement System

Abstract

Permanent Magnet Synchronous Motors (PMSMs) have been massively introduced in the industry in the recent years due to its better characteristics compared to other machines but they have higher torque ripple and vibrations. Those vibrations sometimes are not compatible with their application such as lifts, escalators and robotics. Additionally, the interest in Fault Detection Diagnosis (FDD) techniques for PMSMs have increased since its introduction in the industry. In this master thesis, a vibration measurement system able to detect faults in a PMSM and to suppress machine vibrations is developed. The FDD capability of the prototype is tested through experimental results by creating magnetization faults in an Interior PMSM (IPMSM). Finally, a new vibration suppression control scheme is proposed and simulated showing the cancellation of several torque ripple harmonics