本研究主要目的在於實現一數位式單相低功率太陽光電能轉換系統，此電能轉換系統之功能是將太陽能板所產生的直流電力轉換成交流電力輸出。本研究採用數位訊號處理器搭配推挽式(push-pull)轉換器與全橋式(full-bridge)變流器兩級轉換電路構成之電能轉換系統以減低電路設計的複雜度。此轉換系統也提供了其它的功能，如：最大功率點追蹤、過/低電壓保護、過電流保護、過/低頻率保護以及孤島現象偵測保護等。本研究針對轉換系統各級電路動作原理進行分析說明。此轉換系統除了供給原地負載所需之電力外，並可將多餘的電力以單位功因之弦波電流回送電力網路(與電力網路連結運轉模式)；
也可以單獨的供給負載電力(獨立運轉模式)。本論文提供模擬及實驗結果來驗證所研製之太陽光電能轉換系統的性能及可行性。

This thesis proposes an implementation of a DSP-Based single-phase small-scale photovoltaic energy conversion system. The conversion system converts dc power generated by photovoltaic cells into ac power. A digital signal processor and a combined circuit with push-pull and full-bridge architectures are used in this study to reduce the complexity of the circuit design. Several operation and protection functions, such as maximum power point tracking, over/under voltage protection, over current protection, over/under frequency protection and detection of islanding operation are considered in the design. The operation performance of the conversion system at different stages is analyzed. The proposed conversion system can supply the local loads and feed excess power to the utility network with unit power factor (grid-connection mode), or it can supply loads exclusively (stand-alone mode). The simulation and experimentation results are presented and discussed to show the performance of the photovoltaic system and verify the feasibility of the proposed energy conversion system.

中文摘要 I
英文摘要 II
目錄 III
圖目錄 V
表目錄 X
第一章 緒論 1
1-1 研究動機與目標 1
1-2 太陽能發電之概況 2
1-3 論文組織架構 4
第二章 太陽能光電系統 5
2-1 太陽能發電系統 5
2-2 太陽能光電板特性 7
2-3 最大功率追蹤 10
2-4 與部份網路連接之孤島運轉現象偵測 19
2-5 太陽能發電系統並聯技術 22
第三章 太陽能轉換系統架構與功能設計 27
3-1 轉換系統規格與架構 27
3-1-1 規格與架構 28
3-1-2 推挽式轉換器 29
3-1-3 全橋式變流器 32
3-1-4 系統硬體電路 36
3-2 與電力網路連結運轉模式 45
3-2-1 電壓源型電流控制之小訊號分析 46
3-2-2 控制器之設計與分析 50
3-2-3 軟體規劃 52
3-3 獨立供電運轉模式 61
3-3-1 電壓源型電壓控制之小訊號分析 62
3-3-2 控制器之設計與分析 66
3-3-3 軟體規劃 69
3-4 系統保護 73
3-4-1 電壓、頻率、電流異常保護 73
3-4-2 與部份網路連接之孤島運轉現象偵測保護 75
第四章 測試結果與討論 79
4-1 與電力網路連結運轉模式測試 80
4-2 獨立供電運轉模式測試 83
4-3 系統保護與孤島現象偵測 87
第五章 結論及未來研究方向 95
5-1 結論 95
5-2 未來研究方向 97
參考文獻 98
附錄A 轉換系統程式 101
附錄B 實際硬體電路照片 118

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