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结合某型超轻型电动飞机的设计参数,阐述了电动力系统的布局、系统参数匹配的原则和步骤.提出了电动力系统参数匹配和性能验证的方法.从动力性、经济性、系统质量的角度验证了该系统的可行性.参考飞机的最大平飞速度为175.5km/h,大于设计要求的最大平飞速度170km/h,满足动力性能要求.电动力系统的运行费用为6.8元/h,是相近功率活塞发动机运行费用的1/8.与3种电动飞机相比,参考机型的功质比仍比较高,达0.084 2kW/kg,为可接受值.
Combined with the design parameters of a type of ultralight electric aircraft, the principle and steps of the layout of electric power system and the matching of system parameters are expounded, and the methods of parameter matching and performance verification of electric power system are put forward.From the aspects of power, economy, system quality The feasibility of this system is verified from the angle of view.The maximum flying speed of the reference aircraft is 175.5km / h, which is larger than the maximum required flying speed of 170km / h to meet the dynamic performance requirements.The operating cost of the electric power system is 6.8 yuan / h , Which is about 1/8 of the running cost of the power piston engine.Compared with the three kinds of electric aircraft, the reference model has a high mass-to-mass ratio of 0.084 2kW / kg, which is an acceptable value.