空间飞艇无线通信系统太阳能供电设计仿真

Design and Simulation on Solar Power Supply of Wireless Communication System of Near Space Airship

空间飞艇无线通信系统为其安全飞行提供必要数据支持,而供电设计则是制约空间飞艇的安全飞行时长。为了配合空间飞艇的长航时飞行,针对无线通信系统的持久供电问题,利用太阳能电池进行自供电设计。高转换效率是自供电设计的重要技术难点。为了提升太阳能自供电系统的转换效率,对传统的BOOST电路结构和最大功率点跟踪算法进行优化设计。采用同步BOOST电路结构降低电路功耗,并提出了高效率的自适应电导增量法。最后进行了Simulink仿真设计,以及硬件电路设计。实验结果表明,自适应自导增量法实现了快速、高效的最大功率点跟踪,硬件电路系统实现太阳能电池的能源转换。整个系统设计合理可行。

The wireless communication system of near space airship provides necessary data support for its safe flight,while the power supply restricts the safe flight duration of near space airship.In order to meet the long flight duration of near space airship,we designed the self-powered system with solar cells,aiming at the problem of long-term power supply in wireless communication system.Therefore,high conversion efficiency is an important techni cal difficulty of self-powered design.In order to improve the conversion efficiency of solar self-powered system,we optimized the traditional BOOST circuit and maximum power point tracking(MPPT)algorithm with synchronous BOOST circuit for low power dissipation and high efficiency adaptive self-derivative incremental algorithm(ASIA).Finally,we took the simulation through Simulink and designed the hardware circuit for experiment.The result shows that the ASIA implements the MPPT quickly and efficiently,and the hardware circuit implements solar cells conver sion.The whole system is reasonable and feasible.