本論文的重點是以數位控制為基礎，發展具備最大功率點追蹤功能之高性能隔離型太陽能換流器系統，經由偵測太陽能電池的輸入電壓和電流至數位控制器，以實現擾動觀察法的控制。在前級電流饋入式全橋轉換器上實現最大功率點追蹤，並提供了一個380V的高電壓給後級的併網型單相全橋換流器。本論文所研究的架構成本低、電路簡單、可提供良好的整體效益，經過實驗室2kW原型系統的製造與測試，實驗結果驗證了該架構的可行性。

This thesis aims to study a high-performance DSP-based isolated solar inverter system with maximum power point tracking (MPPT). The input voltage and current of the PV array are sensed to a digital controller for realizing the perturbation and observation (P&O) MPPT control. A current-fed full-bridge converter is used to achieve MPPT and to provide a 380-V bus voltage for the post-stage single-phase full-bridge DC-AC inverter. Low cost, simple configuration and good overall efficiency can be achieved. A 2-kW laboratory prototype system was built and tested. The experimental results are shown to verify the feasibility of the proposed scheme.

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