A Novel Brushless PM-Assisted DC Motor with Compound-Excited Circular Winding

Mingyuan Jiang, Kangshuo Zhao, Weiyu Wang and Shuangxia Niu ()
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Mingyuan Jiang: Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China
Kangshuo Zhao: Department of Electrical Engineering and Automation, School of Mechatronic Engineering, Xiamen University Tan Kah Kee College, Zhangzhou 363105, China
Weiyu Wang: Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China
Shuangxia Niu: Department of Electrical and Electronic Engineering, The Hong Kong Polytechnic University, Hong Kong 999077, China

Sustainability, 2023, vol. 15, issue 18, 1-13

Abstract: A novel compound-excited brushless DC motor with polygonal circular winding is proposed in this paper. The key is that DC excitation is effectively coupled with PM excitation, significantly improving the torque density per PM volume and improving the machine flux weakening performance in the proposed design. This proposed design provides simplified control characteristics similar to a compound-excited DC motor. Further, the flux weakening of the proposed machine can be smoothly achieved using polygonal closed-loop circular winding and a lagging slot winding shifting method.

Keywords: brushless DC motor; flux weakening; PM assisted; polygonal closed loop winding (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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