提出一种太阳能飞艇等效电路拓扑电力评估方法,充分考虑艇身大范围曲面对辐照影响以及艇面光伏阵列电力拓扑形式,构建曲面阵列等效电路模型,开展高保真电力评估方法研究。首先,构建飞艇的参数化模型、太阳辐照和艇面辐照离散模型;然后,充分考虑光伏阵列实际串并联形式,提出一种太阳能飞艇等效电路拓扑电力估算方法;进而,与辐照离散功率累加法进行对比,分析不同飞行条件下两种电力评估方法的差异。结果表明：艇面光伏阵列串联方向的辐照均匀性越差,与传统功率累加法相比所提等效电路法的误差越大,在高纬度地区相对误差甚至超过120%,因此太阳能飞艇电力估算推荐所提等效电路拓扑法。
Abstract
For this purpose,this paper proposes a solar airship equivalent circuit topology power evaluation method. This method constructs a curved array equivalent circuit model, conducts high-fidelity power evaluation research,and fully considers the impact of the large-scale curved surface of the airship body on irradiation,as well as the power topology of solar cell array on the airship surface. Firstly,the parametric model of the airship,solar irradiation and irradiation discretization model were constructed. Then,fully considering the actual series-parallel connection form of the photovoltaic array,a solar airship equivalent circuit topology power estimation method was proposed. Finally,it was compared with the irradiation discrete power accumulation method,and the differences of two power evaluation methods under different flight conditions were analyzed. The results show that the worse the irradiation uniformity in the series direction of the photovoltaic array on airship surface,the greater the error of the traditional power accumulation method compared with the proposed method,and the relative error even exceeds 120% in high latitudes. Therefore,the equivalent circuit topology method proposed in this article is recommended for solar airship surface power estimation.
关键词
飞艇 /
光伏阵列 /
太阳辐照 /
电力评估 /
等效电路拓扑
Key words
airships /
photovoltaic array /
solar radiation /
power evaluation /
equivalent circuit topology
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