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针对太阳能无人机能量生产问题,研究并提出一种综合无人机运动学的能量生产估计模型。首先,对世界范围内近20年来所采用的太阳辐射模型进行简要分析,并对其特点进行总结;其次,通过分析太阳能无人机应用环境,结合太阳能辐射模型特点,并基于精度可用、计算简便的工程应用原则,确定ASHRAE晴空模型作为能量生产的太阳辐射估计模型;最后,通过推导无人机姿态角和太阳角之间相互关系,求解出太阳光入射到翼面太阳能电池的入射角,从而借鉴斜面太阳能辐射强度计算方法,结合太阳能电池转化效率,最终得出与太阳能无人机姿态运动相关的太阳辐射能量生产估计模型。仿真实验表明该模型可用于估计太阳能无人机执行飞行任务时的能量特征且简单易用。
Aiming at the energy production of solar drone, a model of energy production estimation based on kinematics of the drone is proposed. First of all, this paper briefly analyzes the solar radiation models adopted in the past 20 years in the world and summarizes their characteristics. Secondly, by analyzing the application environment of solar drone, combining with the characteristics of solar radiation model, and based on the available accuracy and simple calculation , The ASHRAE clear sky model is determined as the solar radiation estimation model of energy production. Finally, the incident angle of solar incident on the solar airfoil is solved by deducing the correlation between attitude angle and solar angle of UAV The solar radiation energy production estimation model related to the attitude and attitude of solar UAV is finally obtained by referring to the calculation method of slope solar radiation intensity and the solar cell conversion efficiency. Simulation results show that the model can be used to estimate the energy characteristics of solar drone flight mission and easy to use.