Simulation and Analysis of a Novel Dual-Channel Stator Distributed Excitation Double Salient Motor

Stator Distributed Excitation Double Salient Motor (DEDSM) has the advantages of simple structure, low cost and high reliability, and has great application potential in aerospace and other fields. In order to further improve the reliability and flexibility of the motor, a 24/20 DEDSM is designed as a dual-channel motor, and the two channels of the motor operation independently. In two-channel operation, two independent loads can be powered, while in single-channel operation, the two channels are standby for each other. By means of finite element simulation, the characteristics of the motor under two operating modes are studied and analyzed, including flux, electromotive force and no-load characteristics. The simulation results verify the effectiveness of the design. In addition, the influence of single-phase or two-phase short-circuit fault in one channel on the electromagnetic characteristics and output capacity of the two channels is analyzed, and the corresponding conclusions are given.