Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Hall Sensor Fault Detection and Fault-Tolerant Control of High-Speed PMSM Drive System
Authors Myung-Hyuk Jang ; Kwang-Woon Lee
DOI 10.6113/TKPE/2013.18.3.205
Page pp.205-210
ISSN 1229-2214
Keywords hall sensor fault detection; fault-tolerant control; PMSM
Abstract This paper presents a novel hall sensor fault detection and fault-tolerant control method for a high-speed permanent magnet synchronous motor (PMSM) drive system. A phase locked loop (PLL) type position estimator is used with a conventional interpolation based rotor position estimator to reduce position errors due to misalignment of hall sensors. The expected trigger time of hall sensor's output is used for detecting hall sensor fault condition and the PLL type position estimator is reconfigured for fault-tolerant control at the hall sensor fault condition. The proposed method can minimize current ripples during the transition from sensored control using hall sensors to sensorless control. Experimental results have been proposed to prove the validity of the proposed method.