Multi-resolution modeling based on structure in application of more electric aircraft EMA system

For saving energy and improving the performance of the airborne systems, modern aircraft increasingly uses electrical energy to replace the current hydraulic, pneumatic energy on the aircraft. The goal of more electric aircraft is to obtain high performance and high efficiency with electric drive equipments to replace mechanical, hydraulic and pneumatic equipments directly driven by the original engine. More electric aircraft EMA system is a typical complex nonlinear system, which is the multi-physical field collection system of electrical energy, mechanical energy and thermal energy. In order to solve the problem of system integration simulation, for simulation needs of the system, a multi-resolution modeling technology based on structure is proposed in this paper, taking the multi-electric aircraft EMA system as an example and combining with multi-physical domain modeling technology. For the needs of different simulation problems, selecting the appropriate multi-resolution models can improve the system simulation speed and observe the required signal information.