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題 名 | 風力發電機葉片最大扭轉力矩之田口法設計=The Maximum Moment of a Wind Turbine Blade Design with Taguchi Method |
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作 者 | 藍庭顯; 林進旺; | 書刊名 | 中華科技大學學報 |
卷 期 | 51 2012.04[民101.04] |
頁 次 | 頁119-135 |
分類號 | 448.165 |
關鍵詞 | 風力發電機葉片; 田口方法; 最佳化設計; Wind turbine blade; Taguchi method; Optimum design; |
語 文 | 中文(Chinese) |
中文摘要 | 本文提出的風力發電機葉片最大扭轉力矩設計,乃針對風力葉片幾何外形參數作最佳化的研究。針對本校風洞實驗室之風力發電機葉片,其翼形為國際新能源實驗室之S831翼剖面,藉由改變其四個原始設計幾何尺寸,亦即翼根扭曲角、翼尖扭曲角、葉片前掠角及弦長比,運用數值模擬方式,探討風力葉片在不同設計參數及六種不同風速下的最大化力矩。在考慮前述四個控制因子且每個因子有三個水準數之情況下,選用田口方法的L9(3^4)直交表以額定轉速20 rad/sec進行風力葉片之幾何參數最佳化搜尋。實驗發現影響風力葉片力矩最重要的參數為弦長比,其次為翼根扭曲角及翼尖扭曲角。本文發展之最佳化設計方法,對不同風速之平均扭轉力矩,可較原始設計提昇百分之六十七的效能。可作為日後風力發電機葉片設計之參考。 |
英文摘要 | The maximum moment of a wind turbine blade design that presents in this paper is focused on the geometrical parameters of a wind turbine blade. An existed wind turbine blade, with the NREL S831 airfoil section, at the wind tunnel laboratory of CUST was evaluated with the numerical simulation and attempted to varying the four control factors, i.e. the root and tip twisted angle, the blade sweep forward angle, and the taper ratio, from its original design to find the optimum design under six different wind velocities. The four control factors were assigned with three levels. And the L9(3^4) orthogonal array was chosen from the Taguchi Method, and the experiments were performed with a constant blade angular velocity 20 rad/sec. The optimal combination of the geometrical parameters can be found from the experiments. And, it also found that the taper ratio is the most significant factor, that effects the generated moment of a blade, and the root and tip twisted angle are the next important design parameters. The average moment of the six different wind velocities can be improved by sixty seven percent than its original design. The Taguchi Method in the design work of a wind turbine blade was proved to be an effective one. |
本系統中英文摘要資訊取自各篇刊載內容。