本論文之目的在於研製具太陽能電池特性之電源供應器，此模擬電源可設定不同溫度與日射量條件下之太陽能電池特性，供研究探討太陽能電池遭雲遮或塵污之效應，以降低研究成本。由於太陽能電池模組係由多個太陽能電池串並聯組成。本論文將首先提出單模組模式、雙模組串聯模式及雙模組並聯模式等三種運行模式，作為未來昇壓及提昇功率之基礎；其次，硬體實作部份採用降壓型交換式電能轉換器來調整模擬電源的輸出，調整的參考值則依其所接的負載阻抗及太陽能電池工作點而定。最後，本文順利研發一套最大短路電流5A，最大開路電壓60V的具太陽能電池特性之電源供應器，並逐次改變負載，描繪出V-I特性曲線，以驗證其可行性。

The purpose of the thesis is to develop a power supply with photovoltaic cell characteristics in order to reduce the cost of research and development in photovoltaic cell system. The power supply can simulate different temperature and illumination conditions to investigate the efficiency declining effects when parts of the photovoltaic cells are covered by clouds or dust.. In real applications, the photovoltaic module is formed by series and parallel connection of photovoltaic cells. In view of this, three operating modes are presented in the power supply, including single module, double module in series, and double module in parallel. For hardware implementation a buck converter is used to adjust the output of the simulation power supply in this thesis. The expected output voltage is determined by using digital signal processor to calculate the operating point of photovoltaic module, which is dependent on loading impedance. Finally, a proto-type power supply with the characteristics of photovoltaic cell is successfully implemented. The simulation power supply has maximum short-circuit current 5A and maximum open-circuit voltage 60V. Experimental results obtained by changing various load conditions to depict the associated V-I characteristic curve verify the feasibility of the presented system.

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