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A Torque Error Compensation Algorithm for Surface Mounted Permanent Magnet Synchronous Machines with Respect to Magnet Temperature Variations

Author

Listed:
  • Chang-Seok Park

    (Department of Electrical Engineering, Kyungnam University, Changwon-si 51767, Korea)

  • Jae Suk Lee

    (Department of Electrical Engineering, Chonbuk National University, Jeonju-si 54896, Korea)

Abstract

This paper presents a torque error compensation algorithm for a surface mounted permanent magnet synchronous machine (SPMSM) through real time permanent magnet (PM) flux linkage estimation at various temperature conditions from medium to rated speed. As known, the PM flux linkage in SPMSMs varies with the thermal conditions. Since a maximum torque per ampere look up table, a control method used for copper loss minimization, is developed based on estimated PM flux linkage, variation of PM flux linkage results in undesired torque development of SPMSM drives. In this paper, PM flux linkage is estimated through a stator flux linkage observer and the torque error is compensated in real time using the estimated PM flux linkage. In this paper, the proposed torque error compensation algorithm is verified in simulation and experiment.

Suggested Citation

  • Chang-Seok Park & Jae Suk Lee, 2018. "A Torque Error Compensation Algorithm for Surface Mounted Permanent Magnet Synchronous Machines with Respect to Magnet Temperature Variations," Energies, MDPI, vol. 10(9), pages 1-15, August.
    • Handle: RePEc:gam:jeners:v:10:y:2018:i:9:p:1365-:d:111337
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    References listed on IDEAS

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    1. Zhen Tian & Chengning Zhang & Shuo Zhang, 2017. "Analytical Calculation of Magnetic Field Distribution and Stator Iron Losses for Surface-Mounted Permanent Magnet Synchronous Machines," Energies, MDPI, vol. 10(3), pages 1-12, March.
    2. Liang Chu & Yi-fan Jia & Dong-sheng Chen & Nan Xu & Yan-wei Wang & Xin Tang & Zhe Xu, 2017. "Research on Control Strategies of an Open-End Winding Permanent Magnet Synchronous Driving Motor (OW-PMSM)-Equipped Dual Inverter with a Switchable Winding Mode for Electric Vehicles," Energies, MDPI, vol. 10(5), pages 1-22, May.
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