Modeling and simulation of aircraft electrical system based on Dymola

More-electric aircraft is the inevitable developing trend of future. The electrical system is coupled of different areas subsystems, such as mechanical; electrical, and control etc. Multidomain simulation technology meets the demand of electrical system of the multi-domain integrated modeling. This paper has completed the modeling of multi-electric aircraft electrical system based on Dymola and FMI generalization interface protocol. According to the overall system design requirements, a cosimulation method based on FMI standard protocol interfaces is proposed, which is used to model and simulate typical constant power load. It is verified that the electrical system can be automatically distributed and reorganized under different working conditions. The high reliability design requirement of multi-electric aircraft is guaranteed. This provides important support for the research and design of multi-electric aircraft.