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Sensors 2016, 16(2), 178; doi:10.3390/s16020178

Current Sensor Fault Reconstruction for PMSM Drives

1
School of Traffic and Transportation Engineering, Central South University, Changsha 410075, China
2
College of Electrical and Information Engineering, Hunan University of Technology, Zhuzhou 412007, China
3
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)
View Full-Text   |   Download PDF [9228 KB, uploaded 30 January 2016]   |  

Abstract

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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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

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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