Design Optimization of a New Hybrid Excitation Drive Motor for New Energy Vehicles

In this paper, a new hybrid excitation drive motor (HEDM) was proposed to solve the problem of an uncontrollable magnetic field permanent magnet motor. The rotor part composed combined pole and brushless electric claw rotor, in which has parallel circuit structure. According characteristics structure, equivalent model established, no-load leakage flux coefficient calculated. Taguchi method used for objective optimization distortion rate back electromotive force (EMF) taken as first goal; cogging torque average were second fluctuation constraint condition. optimal parameter matching under mixed horizontal matrix obtained. parameters optimized by using uniform variables, dimension Finite element analysis prototype tests carried out rationality feasibility HEDM vehicle verified, provided possibility application energy field.