本論文旨在探討太陽能電池串接輸出轉換器時電流漣波對輸出功率所造成的影響。研究中，以複金屬燈模擬太陽光，以升壓轉換器之三角波電流以及降升壓轉換器之梯形波電流，操作於不同電流漣波與頻率，於室溫下進行各項實驗，量測太陽能電池之輸出電壓與電流波形，分析輸出功率之特性。經由觀察太陽能電池輸出之動態與靜態電特性發現，當轉換器電流峰值超越最大功率操作點時，輸出電壓會產生滯後現象，導致平均輸出功率降低。分析實驗結果，可推論得出，電流峰值越高，漣波頻率越低，以及超出最大功率點之電荷量越大，都會導致太陽能電池輸出功率降低的情形越嚴重。此外，不同因素造成平均功率下降，也可能連帶發生最大功率點偏移之情況。

This thesis investigates the effect of the ripple current on the output power of solar cells. A solar panel with several metal halide lamps is set up to emulate the photovoltaic power system, which is cascaded by a boost converter and a buck-boost converter to extract triangular and trapezoidal currents, respectively. All experiments are operated under the room temperature with different current ripples and frequencies. The measured current and voltage waveforms at the output powers indicate that the dynamic characteristics are very different from static ones obtained from the dc loads. It is found that the output voltage lags the current when the peak of the rippled current goes beyond the maximum power point (MPP), leading to a declination in the average output power. This phenomenon becomes more severe for a higher peak, lower frequency, and larger charge of the rippled current exceeding the MPP. In addition, the declination in the average power may cause a shift of the MPP.

目錄
中文摘要 i
英文摘要 ii
目錄 iii
圖目錄 v
表目錄 vii
第一章 緒論 1
1-1 研究背景 1
1-2 研究動機 2
1-3 論文大綱 3
第二章 太陽能電池概述與實驗架構 4
2-1 太陽能電池材料種類與發電原理 4
2-2 太陽能電池靜態特性 6
2-3 量測系統 7
2-4 測試電路 10
2-5 漣波電流與輸入電容 12
第三章 影響太陽能電池輸出功率之因素 13
3-1 電流峰值 13
3-2 電荷量 16
3-3 操作頻率 19
3-4 實例驗證 24
第四章 升壓轉換器之漣波電流 29
4-1 參數與波形影響 29
4-2 三角波之動態特性 32
4-3 三角波對輸出功率之影響 37
第五章 降升壓轉換器之漣波電流 41
5-1 梯形波之動態特性 41
5-2 梯形波對輸出功率之影響 46
5-3 三角波與梯形波輸出功率之比較 51
5-4 濾波電容之影響 52
第六章 結論與未來研究方向 55
6-1 結論 55
6-2 未來研究方向 56
參考文獻 57

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