| 摘要: | 太陽能是一種典型的綠色能源，太陽光電發電系統靠吸收太陽光來發電，一般太陽光電板單位面積的進光比率，明顯跟太陽光照射在系統的角度有關係，故常用追日系統來維持較佳的照射模式，以提昇整體的發電效率。但是，高精度的雙軸太陽能追日系統之整體建置成本過於昂貴，常用於搭配高功率的太陽能電池，並不普及。所以，若想藉由追日系統來提昇單晶矽電池模組的發電效率，必須考慮設置成本較平價的簡易型追日系統。
目前在國內外已有實際應用，可獲得比一般固定式單晶矽電池系統更高的性價比。因此，本研究針對一種特定的簡易型追日系統，藉由有限元素分析法，進行分析與改良，以期能有助於開發出更高的性價比之太陽光電發電系統。此簡易型追日系統，其模組平台為棋盤式的結構，運轉方式將由鋼索拉動平台四角進行追日。經研究確認，此系統的平台結構抵抗風壓須提高，以及彈簧偏擺使鋼索會與線盤摩擦的問題，因此明顯還有提昇的空間。我們使用有線元素法的模擬工具，進行靜態參數分析與調整，結果顯示加大一號規格尺寸的中心圓管以及矩形管，結構承受風壓可由52kgf /m²提升至105kgf /m²，另外改變彈簧的搭配組成跟鋼索的結合位置由平台支架的四角變更至四邊中間處，經降低搭配組成可減少偏擺。
經改善設計後，抵抗風壓能力明顯的提高，鋼索摩擦線盤的問題得到解決，將能使維修成本降低，妥善率提高，為更穩定且可靠的追日產品。
關鍵字：太陽能、太陽能追日、雙軸追日、有限元素法;Solar energy is typical green energy. Solar photovoltaic power generation systems rely on the absorption of sunlight to generate electricity. Generally, the light input ratio per unit area of solar photovoltaic panels is related to the angle of sunlight irradiating the system. Therefore, the tracking system is often used to maintain relatively the optimal irradiation mode can improve the overall power generation efficiency. However, the overall construction cost of a high-precision dual-axis solar tracking system is too expensive, and it is often used with high-power solar cells, which is not popular. Therefore, to improve the power generation efficiency of the monocrystalline silicon cell module using the tracking system, it is necessary to consider setting up a simple tracking system with a lower cost.
At present, it has practical applications at home and abroad, and can obtain higher cost performance than ordinary fixed monocrystalline silicon battery systems. Therefore, this study aims at a specific simple solar tracking system and analyzes and improves it by finite element analysis to help develop a more cost-effective solar photovoltaic power generation system. This simple tracking system, its module platform is a chessboard-type structure, and the operation method is to pull the four corners of the platform to chase the sun by steel cables. After research, it was confirmed that the platform structure of this system must be improved against wind pressure, and the spring deflection would cause the steel cable to rub against the coiling drum, so there is room for improvement. We use the simulation tool of the wired element method to analyze and adjust static parameters. The results show that by increasing the size of the central circular tube and rectangular tube, the wind pressure of the structure can be increased from 52kgf/m² to 105kgf/m². The combination position of the collocation composition and the steel cable is changed from the four corners of the platform bracket to the middle of the four sides, and the deflection can be reduced by lowering the collocation composition.
After the improved design, the ability to resist wind pressure is significantly improved, and the problem of the coiling drum of the steel cable is solved, which will reduce the maintenance cost, improve the proper rate, and become a more stable and reliable product for the tracker.
Keywords：Solar、Solar Tracker、Dual-axis Tracker、Finite Element Method |
