由於環境汙染與石化能源日漸枯竭是世界各國都相當關切的問題，各國都為突破困境積極尋找替代能源，其中太陽能，為無污染且取之不盡、用之不竭的再生能源，是產生電力相當好的選擇。本文根據太陽能電池之電氣特性，設計一個順滑模態控制器，以達到太陽能電池最大功率點追蹤控制之目的。系統架構包括有太陽能電池、升壓型直流對直流轉換器、輸出端負載，以MATLAB(Simulink)進行模擬，其效能以及強健性將經由模擬結果與比較得到驗證。

Due to the energy crisis, renewable energy sources have been suggested as the possible solution. Among these sources, solar energy is pollution free and inexhaustible. Therefore it is a fairly good energy to generate electric power. However, the efficiency of solar cell is still very low, for that matter how to make the photovoltaic power system works in maximum power point is important. This thesis focuses on the maximum power point tracking control of photovoltaic power system.
Owing to nonlinear I-V characteristics of photovoltaic cells, a maximum power point tracking algorithm is adopted to maximize the output power. In this thesis, An approach for maximum power point tracking using the sliding mode control is proposed. The proposed controller is robust to harsh environment changes and the performance of the controller is verified through simulations.

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