Fault-tolerant Control for Dual Permanent Magnet Synchronous Motor Drive Based on Improved Current Hysteresis Algorithm

A fault-tolerant control method is proposed for dual-permanent magnet synchronous motor (PMSM) drive in the application of electric vehicles. After the inverter fails, the faulty leg is immediately disconnected from the drive by means of hardware isolation. The proposed method based the improved hysteresis controller is adopted to "sum" the currents of the failed bridge legs and directly drive the remaining five legs, which keeps the two motors running steadily even if there is a fault in the inverter. Finally, the effectiveness of the fault-tolerant method proposed in this paper is validated by the experiment.

[1]  Nasrudin Abd. Rahim,et al.  Sliding-Mode Speed Control of PMSM with Fuzzy-Logic Chattering Minimization - Design and Implementation , 2015, Inf..

[2]  Martin Jones,et al.  An improved two-motor three-phase drive using FCS-MPC based flux and torque control with voltage constraint consideration , 2013, 2013 International Electric Machines & Drives Conference.

[3]  Wei Wang,et al.  A Dual-Level Hysteresis Current Control for One Five-Leg VSI to Control Two PMSMs , 2017, IEEE Transactions on Power Electronics.

[4]  S. Bolognani,et al.  Model Predictive Direct Speed Control with Finite Control Set of PMSM Drive Systems , 2013, IEEE Transactions on Power Electronics.

[5]  Kouki Matsuse,et al.  Independent speed control of two induction motors fed by a five-leg inverter with space vector modulation , 2011, 2011 IEEE Energy Conversion Congress and Exposition.

[6]  P. Mutschler,et al.  Fault-Tolerant Voltage Source Inverter for Permanent Magnet Drives , 2012, IEEE Transactions on Power Electronics.

[7]  Jamel Belhadj,et al.  Sliding mode observer for mono-inverter bi-motors railway traction system , 2011, Eighth International Multi-Conference on Systems, Signals & Devices.

[8]  Yong Kang,et al.  Switch Short-Circuit Fault Diagnosis and Remedial Strategy for Full-Bridge DC–DC Converters , 2015, IEEE Transactions on Power Electronics.

[9]  D. G. Holmes,et al.  An improved three phase variable band hysteresis current regulator , 2011, 8th International Conference on Power Electronics - ECCE Asia.

[10]  Rajesh Gupta,et al.  Switching Frequency Derivation for the Cascaded Multilevel Inverter Operating in Current Control Mode Using Multiband Hysteresis Modulation , 2014, IEEE Transactions on Power Electronics.