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Sensors 2016, 16(2), 178;

Current Sensor Fault Reconstruction for PMSM Drives

School of Traffic and Transportation Engineering, Central South University, Changsha 410075, China
College of Electrical and Information Engineering, Hunan University of Technology, Zhuzhou 412007, China
Hunan CSR Times Electric Vehicle Co., Ltd, Zhuzhou 412007, China
Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 27 October 2015 / Revised: 31 December 2015 / Accepted: 26 January 2016 / Published: 30 January 2016
(This article belongs to the Section Physical Sensors)
Full-Text   |   PDF [9228 KB, uploaded 30 January 2016]   |  


This paper deals with a current sensor fault reconstruction algorithm for the torque closed-loop drive system of an interior PMSM. First, sensor faults are equated to actuator ones by a new introduced state variable. Then, in αβ coordinates, based on the motor model with active flux linkage, a current observer is constructed with a specific sliding mode equivalent control methodology to eliminate the effects of unknown disturbances, and the phase current sensor faults are reconstructed by means of an adaptive method. Finally, an αβ axis current fault processing module is designed based on the reconstructed value. The feasibility and effectiveness of the proposed method are verified by simulation and experimental tests on the RT-LAB platform. View Full-Text
Keywords: permanent magnet synchronous motor (PMSM); active flux; sliding mode observers; sensors fault; reconstruction permanent magnet synchronous motor (PMSM); active flux; sliding mode observers; sensors fault; reconstruction

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Huang, G.; Luo, Y.-P.; Zhang, C.-F.; He, J.; Huang, Y.-S. Current Sensor Fault Reconstruction for PMSM Drives. Sensors 2016, 16, 178.

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