Generation Control Method of Permanent Magnet Starter-Generator System for Unmanned Aerial Vehicle Considering Efficiency Optimization

Permanent Magnet Starter-Generator (PMSG) is an attractive candidate for unmanned aerial vehicle (UAV) due to its high power-density and efficiency. Aiming at the efficiency optimization demand of PMSG system during wide speed range in the generation mode, an output voltage stabilization control method using controllable PWM rectification plus DC/DC module based on optimal DC bus voltage value is proposed to improve the system generation efficiency in this paper. Simulation studies verified the effectiveness of the proposed method.