Rule-based Transient Power Control Strategy for Hybrid System in Unmanned Aerial Vehicle

Research on the control methods of hybrid power systems is mainly focused on improving fuel economy. However, in the aviation field, the stability of hybrid power systems is crucial. In order to suppress the impact of transient power on the bus voltage and piston engine, this paper proposes a rule-based transient power control method, which uses lithium batteries to compensate or absorb power fluctuations caused by transient power. Thus, it could ensure the reliability of the system and improves energy efficiency. A hybrid power system model was established in Simulink, and the control method was tested during a flight cycle. The results show that the power control method can improve the stability and energy utilization of the hybrid power system.