The electrical brushes of the brush excitation generator causes many problems such as looping, noise, short life and serious heat. The realization of the brushless excitation can solve above-mentioned problems [1-3]. A novel integrated brushless excitation method is proposed in this paper. It is very suitable to realize brushless excitation for the wound rotor generator without changing the original topology. The additional excitation part is integrated in the wound rotor generator to realize brushless excitation. However, the magnetic flux of excitation part is coupled with the original magnetic flux of wound rotor generator. The air-gap magnetic field of the novel generator is studied by the theoretical analysis and Finite Element Analysis to decouple two parts of the magnetic flux and study the influence of the additional magnetic flux of excitation part on the operating characteristics of the novel generator. The operating characteristics are also verified by the experiment.
展开▼
