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Design for the Interior Permanent Magnet Synchronous Motor Drive System Based on the Z-Source Inverter

Author

Listed:
  • Shuai Dong

    (School of Electrical Engineering & Automation, Harbin Institute of Technology, Harbin 150000, China)

  • Qianfan Zhang

    (School of Electrical Engineering & Automation, Harbin Institute of Technology, Harbin 150000, China)

  • Hongwei Ma

    (School of Electrical Engineering & Automation, Harbin Institute of Technology, Harbin 150000, China)

  • Rui Wang

    (School of Electrical Engineering & Automation, Harbin Institute of Technology, Harbin 150000, China)

Abstract

The permanent magnet synchronous motor (PMSM) running above the base speed requires flux-weakening control, which is usually realized by the direct-axis demagnetization current generated by the vector control, thus leading to a decrease in the system efficiency in the flux-weakening region. In addition, the motor power output range is limited by the inverter output voltage and current level. In this paper, a Z-Source drive PMSM control system with adjustable DC-link voltage was proposed to improve the efficiency of the motor system. The proposed system was experimentally verified. The response time of DC-link voltage is 10 ms and the overshoot is 3%, indicating good dynamic characteristics. Compared with the flux-weakening scheme, the Z-Source inverter scheme can achieve higher efficiency (about 3%) when the PMSM speed was set to 650 r/min.

Suggested Citation

  • Shuai Dong & Qianfan Zhang & Hongwei Ma & Rui Wang, 2019. "Design for the Interior Permanent Magnet Synchronous Motor Drive System Based on the Z-Source Inverter," Energies, MDPI, vol. 12(17), pages 1-14, August.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:17:p:3350-:d:262484
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    Cited by:

    1. Kan Wang & Zhong Wu & Zhongyi Chu, 2020. "DC-Link Current Control with Inverter Nonlinearity Compensation for Permanent Magnet Synchronous Motor Drives," Energies, MDPI, vol. 13(3), pages 1-16, January.

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