Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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12/4 SynRel machine design with concentrated windings and novel polynomial fitting model-based continuous MTPA control method

  • Gan Zhang (School of Electrical Engineering, Southeast University) ;
  • Anjian Qiu (School of Electrical Engineering, Southeast University) ;
  • Taixun Zhang (School of Electrical Engineering, Southeast University) ;
  • Wei Hua (School of Electrical Engineering, Southeast University) ;
  • Xibin Guo (Beijing Institute of Precision Mechatronics and Controls)
  • Received : 2023.02.03
  • Accepted : 2023.05.22
  • Published : 2023.07.20
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Abstract

This paper proposes a 12-stator slot/4-rotor pole (12/4) synchronous reluctance (SynRel) machine with integral slot concentrated windings (ISCW), a segmented stator, and a skewed rotor, namely the 12/4 ISCW machine. The proposed 12/4 ISCW machine exhibits comparable torque performance when compared to the case of adopting an integral slot distributed winding (ISDW) with the same total stack length. A comparison study is conducted on the 12/4 ISCW machine, a 24/4 ISDW machine, and 6/4 fractional slot concentrated winding (FSCW) machines. Then a torque prediction method and a continuous maximum torque per ampere (MTPA) control based on the polynomial fitting model (PFM) are proposed for SynRel machines, to provide fast and accurate calculation of the real-time inductances and torque. Magnetic saturations are also considered in the PFM, which is why the PFM has great potential in the maximum-current-per-torque control of SynRel machines. Finally, a prototype of the proposed 12/4 ISCW SynRel machine is manufactured and experimental validations are carried out.

Keywords

Acknowledgement

This work is supported in part by the National Nature Science Foundation of China under Grant 52077032, 51991380, 51937006, in part by the Fundamental Research Funds for the Central Universities under Grant 2242020R40130, in part by the Challenge Cup National College Student Curricular Academic Science and Technology Works Competition, in part by the Open Fund of Laboratory of Aerospace Servo Actuation and Transmission under Grant LASAT-2022-B01-01

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