Modeling for Real-Time Simulation of UAV Electric Propulsion Systems

Hydrogen fuel cell unmanned aerial vehicles (UAV) have become a research hotspot at home and abroad due to their features of zero emission, high energy density, high energy conversion efficiency and long fly range. Multi-physical domain coupling exists among the subsystems of hydrogen fuel cell UAV, which requires multi-disciplinary collaborative design and optimization in the development process of hydrogen fuel cell UAV, and reduces the R&D efficiency. Simulation has become an indispensable method for the R&D of various complex systems. Using computer to realize the simulation of the system is not only convenient and flexible, but also can bring huge social and economic benefits. Therefore, in this paper, a high-accuracy model implemented in Simulink is developed, which contains detailed subsystem modeling and numerical solution methods. Then using Simulink to iteratively calculate and simulate the designed system model by numerical method. The establishment of the model is of great significance to improve the R&D efficiency and shorten the R&D cycle.