Research and optimal design on hybrid excitation claw-pole alternator for automobile application

A practical status is inefficient when the claw-pole alternator is widely used at present for automobile application, and the severe leakage is the main cause of it. A hybrid excitation rotor is put forward in this paper. Modeling and optimization for hybrid excitation claw-pole alternator are studied by considering permanent magnets together with its original structure. Nonparametric modeling is introduced to reduce calculation cost. The purpose of minimizing leakage is gained by nonparametric model and intelligent optimal arithmetic. The correctness of the theoretic analysis is validated by the examination of hybrid excitation claw-pole alternator with homemade test-bed.