本論文針對震盪水柱式(Oscillating Water Column)波浪發電系統設計一葉片與發電機，並進行匹配分析與討論。首先針對渦輪葉片種類進行探討，由於波浪發電沉箱出口風速為交互變動流速，然而其渦輪葉片須在此狀況下持續運轉。故本論文選擇垂直軸之Savonius葉片與Darrieus葉片作為研究對象，藉由計算流體力學軟體運算，探討不同葉片外型參數下葉片之輸出特性，從中選出適合本沉箱架構之葉片，並於波浪發電沉箱架構下模擬其特性。此外，本論文根據葉片輸出特性，將葉片輸出特性以數學方程式表示之，藉由改變發電機參數與後端電力負載，進行系統匹配分析，以提出一系統設計方法，並獲得適合本系統之發電機設計，可在各種波浪條件下輸出葉片最大功率，且維持其高效率。本文所設計之葉片與發電機，經實驗驗證其輸出功率符合預期。

This thesis focuses on system analysis and design of a turbine and generator for oscillating water column (OWC) wave energy converter. Firstly, the turbine categories are discussed so that an appropriate turbine is selected. The airflow through the OWC chamber outlet is alternating so that bi-directional turbines should be used to maintain the turbine rotational direction. Therefore, vertical-axis Savonius and Darrieus turbines are chosen for this study. By using computational fluid dynamics (CFD) analysis, different parameters of the turbines are discussed and the turbine that fits the investigated OWC can be selected. The simulation for turbines installed on the OWC is also performed to understand the power output of the system. According to the turbine output characteristics, proper generators can be designed and a systematic design approach is proposed. This will ensure the system to operate at the maximum output at various wave conditions and maintain the generator efficiency. The design of the turbine and generator are verified by both the CFD simulation and experiments.

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