12/4 SynRel machine design with concentrated windings and novel polynomial fitting model‑based continuous MTPA control method

Gan Zhang; Anjian Qiu; Taixun Zhang; Wei Hua; Xibin Guo

12/4 SynRel machine design with concentrated windings and novel polynomial fitting model‑based continuous MTPA control method

Vol. 23, No. 7, pp. 1130-1140, Jul. 2023

10.1007/s43236-023-00655-7

Synchronous reluctance

Concentrated winding

Polynomial fitting model

MTPA control

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.

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Cite this article

[IEEE Style]

G. Zhang, A. Qiu, T. Zhang, W. Hua, X. Guo, "12/4 SynRel machine design with concentrated windings and novel polynomial fitting model‑based continuous MTPA control method," Journal of Power Electronics, vol. 23, no. 7, pp. 1130-1140, 2023. DOI: 10.1007/s43236-023-00655-7.

[ACM Style]

Gan Zhang, Anjian Qiu, Taixun Zhang, Wei Hua, and Xibin Guo. 2023. 12/4 SynRel machine design with concentrated windings and novel polynomial fitting model‑based continuous MTPA control method. Journal of Power Electronics, 23, 7, (2023), 1130-1140. DOI: 10.1007/s43236-023-00655-7.