臺灣博碩士論文加值系統

本文提出一個具最大功率追蹤之改良型太陽能系統。所提出的架構以數位訊號處理器控制轉換器輸出電壓，不論是在遮陰情況、不同太陽光輻射度或是太陽能電池損壞的情況下，每塊太陽能板皆能操作於各自的最大功率點。且本文使用之最大功率點追蹤法在太陽能板輸出功率穩態時不會產生震盪，因此功率損失也能降低。在此系統架構下，太陽能板大部分的輸出功率只需經過一個二極體即可將功率提供給負載，因此經過轉換器之功率可以降低。而轉換器只需要處理太陽能板的輸出功率，因此轉換器設計可以不用那麼嚴苛，成本也能降低。本研究建構一個小型太陽能板實驗系統。所提出之系統將與光伏平衡器在不同遮陰狀態下進行模擬和實驗來驗證可行性及有效性。從結果可以得出所提出的太陽能系統能獲得更多能量且有著較高的效率。

An improved solar system with maximum power point tracking (MPPT) is proposed in this thesis. This study uses a digital signal processor to control the converter output voltage, thus, the proposed solar system can implement MPPT independently for each solar panel whether it is under shading, different irradiation or the PV cell is damaged. This thesis uses the maximum power point tracking method, the solar panel output power oscillation does not occur in the steady state, as a result, the power loss can be reduced. In the proposed system, most of the solar panel output power is delivered to the load only through a diode. Therefore, the converter power loss can be reduced. In addition, the converter only handles part of the solar panel output power. Therefore, the system cost can be reduced due to the low power rating of converter. In this paper, a small solar panel experiment system is constructed to assess the effectiveness of the proposed system. The proposed circuit and the traditional PV balancer are verified through simulations and experiments under various shading conditions. The experimental results show that the proposed solar system can produce more output power with high efficiency.

目錄
摘要
Abstract
誌謝
目錄
表目錄
圖目錄
第一章 緒論
　　1.1 研究背景與動機
　　1.2 研究目的
　　1.3 內容大綱
第二章 太陽能電池之介紹
　　2.1 太陽能電池特性與發電原理
　　2.2 太陽能電池種類
　　2.3 太陽能板特性曲線與遮陰現象
第三章 常見的太陽能模組結合轉換器架構
　　3.1傳統太陽能系統－串聯與並聯架構
　　3.2微型換流器架構
　　3.3光伏平衡器架構
　　3.4本文所提出之電路架構
第四章 系統規劃與週邊電路設計
　　4.1 實驗系統配置
　　4.2 數位訊號處理器
　　4.3 開關驅動電路
　　4.4 電壓感測電路
　　4.5 電流感測電路
　　4.6 追蹤控制流程
第五章 實作與驗證
　　5.1 模擬結果
　　5.2 實驗結果
第六章 結論與未來研究方向
　　6.1結論
　　6.2未來研究方向
參考文獻
附錄
　　附錄一
　　附錄二
　　附錄三
　　附錄四

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