Optimization Design and Performance Evaluation of a Hybrid Excitation Claw Pole Machine

Claw pole machines (CPMs) have the advantages of a simple structure and low cost; therefore, they are commonly used in electric vehicles (EV). However, methods to improve reliability efficiency should be studied. So, new type hybrid excitation claw machine (HE-CPM) for EV is proposed. The permanent magnet (PM) inserted rotor, field winding placed on front back ending cover. Because flux path proposed three-dimensional (3D) 3D finite element analysis (FEA) time-consuming, equivalent circuit (MEC) method considering rotor position results between MEC FEA compared. Particle swarm optimization (PSO) combined design HE-CPM. optimized prove effectiveness method. Finally, density distribution, electromagnetic characteristics HE-CPM evaluated. thermal mechanical stress carried out. prototype was manufactured. direct current (DC) bus voltages under different currents load measured compared with those FEA. When armature 7 A 4 A, respectively, rated power speed 10.28 kW 3000 rpm, respectively. maximum 89%. basically consistent experimental results. Accurate time savings can achieved by combining PSO MEC.