Functional analysis and simulation of series hybrid system

In order to solve the problem of low energy utilization rate of small UAV, we carried out the analysis of 80kW series hybrid system, expounded the configuration scheme of aviation hybrid system, built the corresponding Matlab/Simulink simulation model, and designed the optimal working electrical calculation method and bidirectional half-bridge DC/DC converter control strategy for vector control of permanent magnet synchronous generator. Through the simulation results of different operating points of each subsystem, the feasibility of the full-control rectifier control strategy and SVPWM control algorithm of the permanent magnet generator, the topology and control strategy of bidirectional DC/DC, and the coordinated voltage stabilization control algorithm of the energy storage system and the power generation system are verified. The designed diesel-electric hybrid system can meet the load change requirements of UAVs, and each subsystem is in an efficient working state, which lays a foundation for the experimental research of aviation hybrid system.