volume | PIER Journals

Abstract

In this paper, a novel hybrid-excitation external-rotor switched reluctance motor is presented to solve the problem of low output torque of traditional switched reluctance motors (SRMs). The hybrid-excitation SRM, serving as an effective alternative to electric excitation SRMs, achieves comparable torque output with reduced excitation currents and lower power consumption within a certain range. First, the structural configuration and operational principles of the proposed SRM are presented and investigated. Then, key electromagnetic properties based on three-dimensional finite element analysis are analyzed in detail, such as the distribution of magnetic density, torque, and flux linkage. Furthermore, the validation is subsequently conducted through simulation data and performance comparisons with conventional outer-rotor 6/4 SRMs, conclusively confirming the theoretical framework's practical feasibility. Finally, the direct torque control with variable flux linkage based on the HESRM is executed, and the good control performance is verified under different conditions.

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Dr. Liyun Feng

Dr. Kaikai Diao