Electronic Science and Technology ›› 2020, Vol. 33 ›› Issue (9): 1-9.doi: 10.16180/j.cnki.issn1007-7820.2020.09.001

    Next Articles

Optimal Designing of Permanent-magnet-assisted Single-phase Doubly Salient Motor

SHANGGUAN Xuanfeng,MA Yatao,WANG Shuangping,HU Gangqiang,LI Feixiang   

  1. School of Electrical Engineering and Automation,Henan Polytechnic University,Jiaozuo 454000,China
  • Received:2019-07-15 Online:2020-09-15 Published:2020-09-12
  • Supported by:
    National Natural Science Foundation of China(U1361109);National Natural Science Foundation of China(51777060);Henan Natural Science Fund(162300410117)


In this paper, the optimization design of permanent-magnet-assisted single-phase doubly salient motor is studied. The basic equations for the ideal operating condition of the motor are derived, and the design step of the motor are summarized by referring to the design principle of the switched reluctance motor.Self-starting of the motor is achieved by using a tapered air gap. A permanent-magnet-assisted single-phase doubly salient motor with power rating of 45 W and rated speed of 2 000 r·min-1 is designed by using the summarized design step. The influence of the main structural parameters of the motor on the efficiency and cogging torque is calculated by simulation, and its regularity is summarized, which provids a reference for motor optimization. The relationship between the ratio of the tapered air gap and the starting ability of the motor is discussed, and the motor is optimized by Taguchi experimental design method. The optimized motor efficiency is 89.86%, which is 4.46% higher than that before optimization, vorifying the effectiveness of motor design and optimization.

Key words: permanent-magnet-assisted single-phase doubly salient motor, optimized design, performance analysis, Taguchi method, tapered airgap, cogging torque

CLC Number: 

  • TN787