近年來，由於全球暖化威脅和能源供應的減少，可再生能源的發展至關重要。其中，風能是最常用的可再生能源之一，但適合安裝風力發電機的地方有限。將時常面臨颱風和地震的地區納入考量，或是提高現有風場利用風能的效率也是重要的發展方向。IEC61400在2019年改版就有提出將地震與熱帶氣旋放入設計載重範例的選擇。本篇研究中所使用之設計載重均參考自新版規範。
引用美國國家可再生能源實驗室(NREL)在2009年發表的5MW參考風力發電機與丹麥技術大學(DTU)在2013年發表的10MW參考風機，比較其中控制系統的運作。兩者均使用PID控制器求解，NREL控制器中在計算葉片轉角時使用PID控制器；DTU控制器則是使用了兩組PID控制器分別應用在葉片轉角與計算發電扭矩時使用。由於控制風力發電機支撐結構的鋼材用量的主要設計載重都是發生在控制系統故障或是停機時，因此不同的控制系統對於鋼材用量的影響有限。控制系統之間的比較主要項目是轉子轉速與發電功率。為了確認新版IEC規範中對地震與颱風的建議值，針對主要支撐結構的塔、柱、斜撐、樁在考慮包含颱風與地震的所有設計載重、只考慮颱風與常規設計載重、只考慮地震與常規設計載重、只考慮常規設計載重四種組合的設計載重範例對於鋼材用量的變化。

In recent years, due to the threat of global warming and the reduction in energy supply, the development of renewable energy is crucial. Among them, wind energy is one of the most commonly used renewable energy sources, but there are limited places suitable for installing wind turbines. It is also an important development direction to take into account areas that are often faced with typhoons and earthquakes, or to improve the efficiency of using wind energy in existing wind farms. In the revision of IEC61400 in 2019, it was proposed to include earthquakes and tropical cyclones into the design load cases. The design loads used in this study refer to the new version of the standard.
Reference the 5MW reference wind turbine published by the National Renewable Energy Laboratory (NREL) in 2009 and the 10MW reference wind turbine published by the Technical University of Denmark (DTU) in 2013 to compare the operation of the control system. Both are solved by a PID controller. The NREL controller uses the PID controller when calculating the blade rotation angle; the DTU controller uses two sets of PID controllers for the blade rotation angle and calculating the generating torque.
Since the main design loads that control the steel consumption of the supporting structure of the wind turbine all occur when the control system fails or shuts down, different control systems have limited influence on the steel consumption. In order to confirm the recommended values for earthquakes and typhoons in the new version of the IEC code, the changes in the amount of steel used for the towers, columns, braces, and piles of the main supporting structures are considered in different load combinations.

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