Six‑step operation strategy for direct self‑control method of interior permanent magnet synchronous motors based on torque angle

Byeol Han; June-Seok Lee; Yeongsu Bak; Kyo-Beum Lee

Six‑step operation strategy for direct self‑control method of interior permanent magnet synchronous motors based on torque angle

Vol. 21, No. 9, pp. 1352-1364, Sep. 2021

10.1007/s43236-021-00281-1

Direct self-control

Flux-weakening (FW) control

Interior permanent magnet synchronous motor

Maximum voltage utilization

Six-step operation

Abstract

This paper proposes a six-step operation strategy for direct self-control (DSC) method of interior permanent magnet synchronous motor (IPMSM) based on the torque angle. Conventional DSC methods for induction motors (IMs) have been studied for railway applications since these methods are suitable for controlling high-power traction drives and for extending voltage utilization through a six-step inverter operation. However, IPMSMs controlled via conventional DSC methods for IMs cannot be properly controlled through a six-step operation since the torque angle is not considered. In addition, synchronous frame rotation causes a phase error at high speeds owing to the time delay of digital controllers. This paper presents a torque angle compensation that improves the dynamic performance. The effectiveness of the proposed DSC method was verified through experimental results.

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Cite this article

[IEEE Style]

B. Han, J. Lee, Y. Bak, K. Lee, "Six‑step operation strategy for direct self‑control method of interior permanent magnet synchronous motors based on torque angle," Journal of Power Electronics, vol. 21, no. 9, pp. 1352-1364, 2021. DOI: 10.1007/s43236-021-00281-1.

[ACM Style]

Byeol Han, June-Seok Lee, Yeongsu Bak, and Kyo-Beum Lee. 2021. Six‑step operation strategy for direct self‑control method of interior permanent magnet synchronous motors based on torque angle. Journal of Power Electronics, 21, 9, (2021), 1352-1364. DOI: 10.1007/s43236-021-00281-1.