A Novel Winding Switching Control Strategy of a Consequent-Pole Ferrite-PM Hybrid-Excited Machine for Electric Vehicle Application

In this article, a novel winding switching control strategy is proposed to extend the speed range of consequent-pole ferrite-permanent magnet hybrid-excited machine (CPFPM-HEM) for electric vehicle application. The key that in low-speed range, ac armature and dc field are connected series achieve large starting torque, while high-speed injected with adjustable currents realize variable constant voltage winding. Furthermore, rotor used reduce usage permanent (PM). meantime, ferrite PMs replace rare-earth cost shortage resources. configuration, operation principle dual excitation sources, flux modulation principle, illustrated detail. Then, electromagnetic performance CPFPM-HEM different ranges investigated. Finally, extension verified by Maxwell/Simplorer co-simulation.