Improvement of Output Power for AC Hybrid Excitation Brushless Generator with Novel Consequent-pole Rotor

The alternating current hybrid excitation brushless generator (AC-HEBG) with I-S-I-I-N-I rotor structure, which adds tangential permanent magnets (PMs) and magnetic barriers is proposed in this paper, to solve the problem that low utilization rate of iron core poles in the low value zone of AC magnetic potential, which limits the improvement of output power and efficiency. The output capacity and magnetic regulation ability of the generator are balanced by optimizing the main factors such as magnetic barrier angle, tangential PM length, and magnetic bridge length in AC-HEBG.