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Abstract: This paper presents an investigation of inverter fault-tolerant operation for a permanent magnet synchronous motor (PMSM) direct torque control (DTC) system under various inverter faults. The performance of a faulty standard 6-switch inverter driven PMSM DTC system is analyzed. To avoid the loss or even disaster caused by the inverter faults, a topology-modified inverter with fault-tolerant capability is introduced, which is reconfigured as a 3-phase 4-switch inverter. The modeling of the 4-switch inverter is then analyzed and a novel DTC strategy with a unique nonlinear perpendicular flux observer and feedback compensation scheme is proposed for obtaining a continuous, disturbance-free drive system. The simulation and experimental results demonstrate that the proposed inverter fault-tolerant PMSM DTC system is able to operate stably and continuously with acceptable static and pretty good dynamic performance.

[1] Bellini, A., Concari, C., Franceschini, G., Tassoni, C., 2007. Different Procedures for the Diagnosis of Rotor Fault in Closed Loop Induction Motors Drives. Int. IEEE Electric Machines and Drives Conf., 2:1427-1433.

[2] Benbouzid, M.E.H., Kliman, G.B., 2003. What stator current processing-based technique to use for induction motor rotor faults diagnosis? IEEE Trans. on Energy Conv., 18(2):238-244.

[3] Cruz, S.M.A., Cardoso, A.J.M., 2004. Diagnosis of stator inter-turn short circuits in DTC induction motor drives. IEEE Trans. on Ind. Appl., 40(5):1349-1360.

[4] Diamantis, G., Prousalidis, J.M., 2004. Simulation of a Ship Propulsion System with DTC Driving Scheme. Proc. 2nd Int. Conf. on Power Electronics, Machines and Drives, 2:562-567.

[5] Fu, J.R., Lipo, T.A., 1993. A Strategy to Isolate the Switching Device Fault of a Current Regulated Motor Drive. IEEE Industry Applications Society Annual Meeting, 2:1015-1020.

[6] Gamal, M., Mahmoud, M., Ibrahim, E.A., 2007. Inverter Faults in Variable Voltage Variable Frequency Induction Motor Drive. Compatibility in Power Electronics. Gdansk, Poland, p.1-6.

[7] Jia, H.P., He, Y.K., 2005. Study on a New Nonlinear Perpendicular Flux Observer with Feedback Compensation for DTC Application. Proc. Eighth Int. Conf. on Electrical Machines and Systems. Nanjing, China, 3:1824-1827.

[8] Kastha, D., Bose, B.K., 1994. Investigation of fault modes of voltage-fed inverter system for induction motor drive. IEEE Trans. on Ind. Appl., 30(4):1028-1038.

[9] Lee, K.S., Ryu, J.S., 2003. Instrument fault detection and compensation scheme for direct torque controlled induction motor drives. IEE Proc.-Control Theory & Appl., 150(4):376-382.

[10] Lee, Y.K., Habetler, T.G., 2007. An On-line Stator Turn Fault Detection Method for Interior PM Synchronous Motor Drives. Proc. 22nd Annual IEEE Applied Power Electronics Conf. CA, USA, p.825-831.

[11] Mendes, A.M.S., Marques Cardoso, A.J., 1998. Voltage Source Inverter Fault Diagnosis in Variable Speed AC Drives, by the Average Current Park’s Vector Approach. IEE Seventh Int. Conf. on Power Electronics and Variable Speed Drives, p.704-706.

[12] Mendes, A.M.S., Marques Cardoso, A.J., 2003. Continuous Operation Performance of Faulty Induction Motor Drives. IEEE Int. Conf. on Electric Machines and Drives, p.547-553.

[13] Peuget, R., Courtine, S., Rognon, J.P., 1998. Fault detection and isolation on a PWM inverter by knowledge-based model. IEEE Trans. on Ind. Appl., 34(6):1318-1326.

[14] Sun, D., He, Y.K., 2005. A Modified Direct Torque Control for PMSM Under Inverter Fault. Proc. Eighth Int. Conf. on Electrical Machines and Systems, 3:2469-2473.

[15] Takahashi, I., Ohmori, Y., 1989. High-performance direct torque control of an induction motor. IEEE Trans. on Ind. Appl., 25(2):257-264.

[16] Welchko, B.A., Lipo, T.A., Jahns, T.M., Schulz, S.E., 2004. Fault-tolerant three-phase AC motor drive topologies: a comparison of features, cost, and limitations. IEEE Trans. on Power Electr., 19(4):1108-1116.

[17] Xing, W., Zhu, J.G., Xu, J.Q., Tang, R.Y., 2005. Design of a drive system based on TMS320LF2407 in EV application. J. Shenyang Univ. Tech., 27(1):23-27.

[18] Zhong, L., Rahman, F., 1997. Analysis of direct torque control in permanent magnet synchronous motor drives. IEEE Trans. on Power Electr., 12(3):528-536.