石化燃料的枯竭與溫室效應的影響已遍布世界各地，其中最重要的解決方法即是尋找長久之替代能源。綠色能源可以產生充沛能量，並不會造成環境污染的特性，如：太陽能、地熱能與風能等皆被廣泛的利用。太陽能電池的即是可以將太陽能輻射直接轉換為電能。光伏(PV)的能源管理概念是能夠使太陽能產出之能源獲得最佳利用方式。太陽能發電系統正廣泛的研究，因為它的好處是環保和可再生的特點，與石油、天然氣與煤炭相較之下，不排放溫室氣體或造成汙染，並預期提高的可行性、降低成本和提高轉換效率。本論文的重點是以DSP為基礎發展一只有市電併聯之高性能單級最大功率追蹤換流器。取樣至PV換流器的輸出電壓與電流配合擾動觀察法，來實現最大功率追蹤之可行性，再配合零點檢測控制，即可免去加入額外放至於太陽能板的電壓與電流偵測電路。本論文所研究的市電併聯之單級換流器架構可提供低成本、電路簡單及良好的整體效率，經過實驗室原型系統的製造與測試，實驗結果顯示，證明是一可行性的架構。

While fossil fuels exhaustion and greenhouse effects are widely concerned around the world, one of the most important issues toward to these problems is to find alternative energy for long-term solutions. Green energy offering the promise of clean and abundant energy gathered from self-renewing sources such as solar energy, geothermal energy and wind source are broadly developed. Solar cells are unique in that they directly convert the incident solar radiation into electricity. Photovoltaic (PV) power management concepts are essential to extract as much power as possible from the solar energy. PV energy systems are being extensively studied because of its benefits of environmental friendly and renewable characteristics. Unlike oil, gas and coals, solar energy does not emit greenhouse gases, or cause pollutions, and is expected to enhance the feasibility of lowering cost and increasing conversion efficiency. This thesis focuses on the developments of a high performance DSP-based single-stage grid-connected PV inverter system with maximum power point tracking (MPPT). The output voltage and current of the studied PV inverter are sensed to realize the MPPT control. The additional sensing for the PV array voltage and current is unnecessary. A perturbation and observation (P&O) method is implemented and cooperated with a zero-detection phase shift control scheme. The studied grid-connected single-stage PV inverter topology provides the benefits of low cost, simple configuration and good overall efficiency. A laboratory prototype system is built and tested. The experimental results are shown to verify the feasibility of the proposed scheme.

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