浮體式風力機之運動特性研究及其效能影響評估

Motion Characteristics and Power Evaluation on Floating Offshore Wind Turbine

王昱傑(Yu-Chieh Wang)

指導教授 ： 李雅榮

國立臺灣大學/工學院/工程科學及海洋工程學研究所/碩士(2011年)

https://doi.org/10.6342/NTU.2011.00633

摘要

風力發電的發展趨勢由陸上風電往海上風電發展，海上風電目前發展至深水區之階段，深水區須採用浮體平台搭配風力發電機，再利用錨鏈系統固定浮體平台，整體錨鏈、浮體及風機系統稱為浮體式風力發電機。浮體式風力機在海上運轉時會受風力及波浪力的作用，浮體受外力作用會發生運動行為，且浮體風機的運動行為會對葉片結構與風機運轉效能產生影響。本研究以SPAR型浮體做為風力機之浮體平台，推導規則波作用下浮體平台的運動模式，討論浮體運動產生之慣性力對風力發電機葉片的影響，並進行動搖實驗測量運動條件下葉片的應力，驗證運動模式之正確性，並確認浮體運動對葉片的影響。此外亦探討浮體運動對風機發電效能的影響，在浮體運動的條件下，利用BEM方法計算風力機發電輸出與發電效率的變化。

關鍵字

浮體式風力機 ； 浮體平台 ； SPAR型浮體 ； 浮體運動分析 ； 動搖實驗 ； 葉片運動慣性力 ； BEM發電效率計算

並列摘要

This study is concerned about the motion of the floating wind turbine. Floating wind turbine stands in the ocean, and it encounters the wind loads and wave loads. When the wave hits the floating platform, the floating platform begins to do some kinds of motion. This study supposes that the floating wind turbine hit by regular wave begin to do pitching, surging, and heaving motions. By calculating the inertial force induced by the motion of platform, the stress on the blade can be analyzed. Conduct an experiment to measure the stress on the blade when the tower is doing the pitching motion. Besides, the motion of the wind turbine influences the power efficiency. Therefore, this study uses BEM method to calculate the power generation of the wind turbine when the platform is doing pitching motion.

並列關鍵字

floating wind turbine ； floating platform ； SPAR type platform ； motion of floating platform ； blade’s inertial force ； power evaluation by BEM method

參考文獻

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