為改善太陽能電池發電系統的功率利用率(Power Utilization)，本論文提出一個具部分功率調節之串聯太陽能板分散式最大功率追蹤的電路架構。串聯太陽能板除了直接提供負載功率外，另配置返馳式轉換器調節部分功率，執行分散式最大功率追蹤。考量返馳式轉換器的效率，啟動需調節功率之太陽能板的轉換器，可追蹤到系統全域最大功率點(System Global Maximum Power Point, SGMPP)。當串聯太陽能板的部分遮陰程度改變，系統可根據變動後的電壓電流，重新估測SGMPP。
本研究設計一個包含三組配置返馳式轉換器的太陽能板串聯雛型實驗系統，驗證電路理論分析和擬定的SGMPP估測與追蹤流程。實驗顯示，當太陽能板遮陰程度有差異時，系統執行部分功率調節，可追蹤到估測的SGMPP，且估測之SGMPP與量測結果吻合；主電路搭配準確的SGMPP估測，可達良好的功率利用率，且高於傳統市電併聯型與串聯型分散式最大功率追蹤之架構。

To improve the power utilization of photovoltaic (PV) system, this thesis proposes a circuit topology with partial power regulation based on distributed maximum power point tracking (DMPPT). The DMPPT is performed on each PV panel by regulating a part of generated power through the attached fly-back converter. By carefully taking account for the efficiencies of the fly-back converters, the system global maximum power point (SGMPP) can be exactly estimated. As the partially shaded condition on the serial PV panels changes, the SGMPP can be re-estimated with the new voltages and currents on the PV panels.
To verify the theoretical analyses of the proposed approach, a laboratory system formed by three serial PV panels with the associated fly-back converters is set up for experimental tests. The tested results demonstrate that the system is capable of executing partial power regulation to track the estimated SGMPP and under partially shaded conditions. As compared to the PV system with PV panels connected directly in series and the conventional DMPPT topology, the proposed approach can achieve a higher power utilization of the PV system with accurate SGMPP estimation.

目錄
論文審定書 i
致 謝 ii
摘要 iii
Abstract iv
目錄 v
圖目錄 vii
表目錄 ix
第一章 緒論 1
1-1 研究背景與動機 1
1-2 論文大綱 3
第二章 太陽能板與串聯型分散式最大功率追蹤概述 4
2-1 太陽能板特性簡介 4
2-2 部分遮陰現象 6
2-3 串聯型分散式最大功率追蹤 9
第三章 電路架構分析 11
3-1 電路架構 11
3-2 工作模式 13
3-3 參數推導 17
3-4 根據照度變化調節之系統全域最大功率追蹤流程 21
3-5 系統全域最大功率估測 24
3-6 工作狀態 32
3-7 電路設計步驟 36
第四章 實例驗證 37
4-1 電路規格與實驗設計 37
4-2 電路之電壓電流波形量測 39
4-3 不同工作狀態之電路實測 41
4-4 系統全域最大功率估測驗證 44
4-5 驗證隨照度變化調節之系統全域最大功率追蹤 50
4-6 偵測電路 55
第五章 結論與未來研究方向 56
5-1 結論 56
5-2 未來研究方向 57
參考文獻 58

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