太阳能飞行器能源昼夜闭环仿真分析

以能量为核心，建立太阳能飞行器的获能模型；通过对太阳能飞行器飞行剖面特点的分析，设计飞行过程中各个阶段的飞行方案，并建立相应的耗能模型；考虑目前储能电池技术水平，根据产能和耗能模型，建立储能模型，完成了能源闭环模型的设计；参照Zephyr 7太阳能无人机的结构参数对论文建立的模型进行了仿真分析，获取了飞行过程中能量变化规律，同时对飞行姿态进行优化。结果表明：通过对太阳能飞行器昼夜飞行高度的不同设置以及飞行姿态角的优化，太阳能飞行器可以实现跨昼夜持久飞行。

Energy Closed Loop Simulation and Analysis for Solar Powered Aircraft Round the Clock

Focusing on the energy, the power generation model for a solar powered aircraft is set up. The characteristics of the flight profile are analyzed, the flight schemes for all flight stages are designed, and the energy consumption models are established accordingly. Considering the present level of the energy battery, on the basis of the power generation models and energy consumption models, the energy storage model is built, and the energy closed-loop model is accomplished. By reference to the structure parameters of the Zephyr 7 solar powered unmanned aerial vehicle, the simulation and analysis for the models are described, harvesting the rules of energy change during the flight. Besides, the flight attitudes have been optimized. The studies have shown that the solar powered aircraft’s continuous flight can be achieved by different altitudes designed in day and night and the flight altitudes optimized.