Electromagnetic Characteristic Analysis and Design of a Novel Intensifying-Flux Hybrid Excited Permanent Magnet Machine

In this paper, a novel intensifying-flux hybrid excitation machine (IF-HEPMSM) is proposed in conjunction with the latest development requirements of electric vehicles. Therefore, the proposed IF-HEPMSM design can simultaneously obtain the synergy of strong overload capability and wide speed regulation range. Firstly, the topology, characteristics and working principle of IF-HEPMSM are introduced to reveal the improvement of the machine performance, based on which, the tooth width and yoke thickness of the machine stator are optimized to ensure the output torque of the machine while effectively improving the wide flux regulation range. The electromagnetic characteristics of the IF-HEPMSM are investigated and compared with the IF-PMSM, conventional permanent magnet machine to highlight the superiority of the IF-HEPMSM.