Research on Fault-Tolerant Field-Oriented Control of a Five-Phase Permanent Magnet Motor Based on Disturbance Adaption

Li Zhang, Chenyang Dong, Yucheng Wang and Sai Han
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Li Zhang: School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China
Chenyang Dong: School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China
Yucheng Wang: State Grid Zhenjiang Power Supply Company, Zhenjiang 212013, China
Sai Han: School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China

Energies, 2022, vol. 15, issue 9, 1-15

Abstract: To ensure the high-quality output performance of the five-phase fault-tolerant permanent magnet synchronous motor (FTPMSM) drive system under normal and open-circuit faults and achieve the minimal reconfiguration of the FTPMSM control drive system under various open-circuit faults, in this paper, a fault-tolerant field-oriented control (FOC) strategy based on disturbance adaption is proposed. The speed-loop and current-loop steady-healthy controllers are designed to effectively suppress the torque ripples caused by open-circuit faults and improve the robustness of the drive system to load disturbance and motor parameter variation under fault operation. Moreover, the additional zero-sequence current controller can be omitted. In addition, the modified reduced-order coordinate transformation matrices are proposed to weaken the influence of oscillating neutral. Finally, the fault-tolerant FOC system of the FTPMSM is established, and its experiment is conducted. The experimental results verify the feasibility and effectiveness of the proposed control strategy.

Keywords: five-phase fault-tolerant permanent magnet motor (FTPMSM); open-circuit fault; disturbance adaption; steady-healthy controller; modified reduced-order coordinate transformation matrices (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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