近年來，受到氣候變遷與極端氣候影響，環保意識逐漸抬頭，人們正極力探求一個能與環境和諧共存的生存模式。在能源發展方面，具有能永續經營特點的”綠電”躍昇成為一個至關重要的角色，在綠色能源中又以風力發電最具潛力，除了有取之不盡的風力資源，在離岸風機技術逐漸成熟之際，更有幾乎無上限的面積可以發展風力發電。然而，相較於傳統發電方式，綠能仍處於一個新興發展的階段，仍有許多生產上、技術上的問題需要克服，在生產成本上更是有難以忽略的鴻溝。為了順利推行綠電，除了各國政府政策上的規劃，更需要在工程、技術等方面進行最佳化設計。本論文提出一個利用鮑威爾方法與目標參數選定進行套管式離岸風機支撐結構最佳化設計的方法，利用鮑威爾方法對多參數進行最佳化的特性，進一步推展原始最佳化程式 windturb 的運算維度，研究中除了對 10MW離岸風機進行模擬，更對 15MW 的超大型風機進行分析，透過繪製等高線圖的方式尋找選定參數在不同尺寸下的最佳化配置，目的是要探求超大型風機的可行性與設計尺寸上的規律。從模擬結果推斷，一個用於應對 IEC 61400-3-1 規範中特殊載種情況的剎車系統應該被設置於風機系統中，以避免非必要的結構調整。
此論文中用及之程式皆由朱聖浩教授及其研究團隊協力開發，分析程式與研究成果皆屬於公開資源。

The environmental awareness has raised due to the extreme weather happening around the world; people want to live in a more environment friendly lifestyle. Fortunately, with unlimited natural resources and low emission of greenhouse gases, renewable energy, such as solar power, hydraulic power, wind power, etc. are thought to be a reasonable solution. Above all kinds of renewable energy source, wind power is considered as the best way with the highest potential of development. However, because of some unsolved technical problems and the high cost of production, compared to the traditional ways, wind energy could not yet fully replace the traditional methods. For this reason, optimization become the major issue of development. In this paper, an optimization scheme using Powell’s method and symbolic parameter on jacket type Offshore Wind Turbine (OWT) was proposed. The optimized parameter was increasedby using Powell’s method, making it possible to obtain a better design. On the other hand, not only 10MW capacity support structures were simulated in this paper, the 15MW super large sized structure were also analyzed to test for the possibility of designing and see if there is a design pattern to find. According to the result of this study, a brake system is required to be established in wind power system to avoid abnormal load conditions. The optimization programs were developed by Prof. Shen-Haw, Ju and his research team, considering the design load cases in IEC 61400-3-1 standard. The results and programs used in this study will be free for every person to access.

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