基于MPPT模糊逻辑的太阳能无人机应用设计

H. Suryoatmojo, R. Mardiyanto, D. Riawan, E. Setijadi, S. Anam, F. Azmi, Y. D. Putra
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引用次数: 9

摘要

太阳能电池将太阳能转化为电能,是一种资源丰富、低排放的可再生能源技术。同时,太阳能电池可以将传统汽车的废气排放量减少92%。因此,太阳能电池板有很大的机会应用于无人驾驶飞行器(UAV)等交通工具。不幸的是,太阳能电池板是一个非线性的能源,其输出功率的变化取决于辐照度和环境温度。在正常情况下,由于太阳能电池板的特性曲线,太阳能电池板不能最优地吸收太阳能。为了使太阳能电池板的功率最大化,需要最大功率点跟踪(MPPT),这是一种通过调节太阳能电池板的输出电压来实现功率优化的方法。在无人机上,太阳的辐照度变化非常迅速,因此传统的MPPT使用效率较低,因为它有一个缓慢的响应,并且在功率最大时有振荡。在本研究中,采用模糊逻辑控制设计并实现了MPPT系统。模糊逻辑控制可以加快系统对负载变化的响应速度,并减少最大功率时出现的振荡。电压调节器的执行器应选用DC-DC变换器,其重量应尽量轻,以免增加飞机的工作量。本研究进行了仿真和实验。实验结果表明,采用模糊逻辑的MPPT可以降低高达4.5%的功率损耗。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Design of MPPT Based Fuzzy Logic for Solar-Powered Unmanned Aerial Vehicle Application
By converting sun energy into electrical energy, solar cells are a technology of renewable energy that is abundant and low emissions. Meanwhile, solar cells can reduce conventional vehicle exhaust emissions by 92%. Therefore, solar panels have a great chance to be applied to a vehicle such as Unmanned Aerial Vehicle (UAV). Unfortunately, solar panel is a non-linear energy source whose output power changes depending on the irradiance and ambient temperature. If operated under normal circumstances, solar panels will not absorb the solar power optimally due to the characteristic curves of the solar panels. In order maximize the power from solar panels, it needs Maximum Power Point Tracking (MPPT), which is a power optimization method by conditioning the output voltage of the solar panel. On UAV, the sun's irradiance is changing very rapidly, so the conventional MPPT is less efficient to use, because it has a slow response and has oscillations when the power is in maximum. In this research, it has been designed and implemented of MPPT system using fuzzy logic control. Fuzzy logic control can speed up the system response towards the load changes, and reduce the oscillations that occur at maximum power as well. A DC-DC converter, as the actuator of the voltage conditioner, should be selected which has as light as possible in weight so that it will not increase the workload of the aircraft. Simulation and experiment have been done in this research. It shows that MPPT using Fuzzy Logic can reduce the power losses up to 4.5%.
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