Shen Xin, Wu Yipeng, Yuan Quan, He Junfeng, Zhou Chunhua, Shen Junfeng
State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
Shanghai Institute of Satellite Engineering, Shanghai 201109, China.
Micromachines (Basel). 2024 Jul 31;15(8):996. doi: 10.3390/mi15080996.
As the most common energy source of spacecraft, photovoltaic (PV) power generation has become one of the hottest research fields. During the on-orbit operation of spacecraft, the influence of various uncertain factors and the unbalanced inertial force will make the solar PV wing vibrate and degrade its performance. In this study, we investigated the influence of mechanical vibration on the output characteristics of PV array systems. Specifically, we focused on a three-segment solar panel commonly found on satellites, analyzing both its dynamic response and electrical output characteristics under mechanical vibration using numerical simulation software. The correctness of the simulation model was partly confirmed by experiments. The results showed that the maximum output power of the selected solar panel was reduced by 5.53% and its fill factor exhibited a decline from the original value of 0.8031 to 0.7587, provided that the external load applied on the panel increased to 10 N/m, i.e., the vibration frequency and the maximal deflection angle were 0.3754 Hz and 74.9871°, respectively. These findings highlight a significant decrease in the overall energy conversion efficiency of the solar panel when operating under vibration conditions.
作为航天器最常见的能量来源，光伏发电已成为最热门的研究领域之一。在航天器在轨运行期间，各种不确定因素的影响以及不平衡惯性力会使太阳能光伏翼振动并降低其性能。在本研究中，我们研究了机械振动对光伏阵列系统输出特性的影响。具体而言，我们聚焦于卫星上常见的三段式太阳能板，使用数值模拟软件分析其在机械振动下的动态响应和电输出特性。模拟模型的正确性部分通过实验得到了证实。结果表明，当施加在面板上的外部负载增加到10 N/m时，即振动频率和最大偏转角分别为0.3754 Hz和74.9871°时，所选太阳能板的最大输出功率降低了5.53%，其填充因子从原始值0.8031下降到0.7587。这些发现突出了太阳能板在振动条件下运行时整体能量转换效率的显著下降。
