本研究以舊型風力機的最佳化參數為基準，將之套用於新式阻力型風力機設計上，且對其進行穩定性結構分析、原型機製造與性能實驗之整合探討；接著將風力機架設於可拆式垂直軸風力機實驗平台，執行一系列之性能量測評估分析。新型風力機除完成防鏽及漏水處理外，其主軸也比原先規劃地輕薄，且採用輕質葉片又增加全面性的捕風面積，故新型風力機有輕量化的特性，同時相較舊型也更易拆卸及組裝。至於實驗資料擷取系統係利用NI公司的資料擷取卡，將風機測試平台的感測器與發電機參數等類比訊號，轉成數位訊號傳送至電腦；再藉由LabVIEW程式即時監測風場環境以及發電機之輸入與輸出實驗數據，並依風速分類存檔紀錄之。接著將紀錄資料藉撰寫之程式做分析與資料處理，並且以統計概念驗證資料是否充足，以獲得可信的實驗數據供分析與評估，最後並與業界風力機規格做相關氣動性性能比較。
實驗規劃包含葉片數及半徑等參數，進行新型風力機一系列的結構測試實驗，經測試發現五片葉對於新型風力機之穩定性較為良好；從4米風之數據看起來，此新型風力機的功率大於舊型風力機638%，其性能優勢表現非常明顯，且此風機直徑只有2米，相較於舊型來得小。爾後為完成此風力機能在高風速下運轉，本研究隨即強化其結構，並製作直徑2米原型機進行實際風場之性能測試，結果顯示此原型機於4米風運作時，其功率相較舊型風力機(直徑3米)大了37%，在11米風時則大了26%，相較未強化原型之性能優勢降低許多。最後為完成在同樣尺寸下評估新型風力機之性能優勢，將其直徑增至與舊型風力機相同之3米，並製作原型機進行性能測試；從實驗結果可以看出，於4米風時相較於舊型風力機之輸出功率大16倍，而在11米風時，卻無相同之性能優勢出現。推測其主因是強化後之風力機重量過重，以及尚未做最佳化負載調整實驗，故高風速的最大輸出功率無法顯示出來，因此之後於重量減輕部分應將非作動零件換成鋁，並整合風力機實心及空心的部分，及規劃零件材料的選用；至於葉片製作及框架應設計成可配合各種尺寸去拆卸，最後再將模型製作出來進行測試，如此將可大幅改善其高風速之性能表現。

A new drag-type, vertical-axis wind turbine is designed and investigated in this experimental study. First of all, optimized parameters of the old wind turbine are used as the design base for this newly designed wind turbine. The increased wind-capture area and enhancements on the anti-leakage and anti-rust ability are enforced on this new design. Also, its main shaft and blade weight are reduced to make it convenient during maintenance periods. Later, the prototype is manufactured and mounted on a removable test platform for conducting the performance experiment of wind turbine. Moreover, experimental data is recorded using data acquisition system; the ambient condition and power of the new wind turbine are recorded automatically and loaded on a computer. With the help of a visual software programming, Labview, real-time monitoring on the input-output parameters of the generator and the wind condition on the rooftop can be carried out simultaneously. Subsequently, data processing and analysis of the experimental outputs are performed using a computer program incorporating with the statistical data-analysis concepts.
Several geometric parameters of the wind turbine, such as blade number and radius, are considered in the experimental work. Test results indicate that the five-blade wind turbine with a radius of two meters, which is smaller compared to the old one, shows relatively good stability and performance. In addition, for the 4m/s wind speed, this wind turbine has more power output (638%) than that of old wind turbine. Nevertheless, the structure of this designed turbine cannot operate continuously under the high-speed wind. Thereafter, after improving the structure strength, another prototype of the new wind turbine with two-meter diameter is manufactured and tested for low and high wind speed. Results show that the wind power is 37% and 26% more than that of the old wind turbine for 4m/s and 11m/s wind speeds, respectively. Obviously, the performance superiority is downgraded significantly due to the weight increase caused by the strength enhancement. Subsequently, for comparison under the same size, a 3-mter-diameter new wind turbine is constructed for conducting the performance test under the real wind field. Measurements show that for low wind speed (4m/s) the power generation for the new wind turbine is sixteen times than that of the old wind turbine. However, for high wind speed (11m/s), it doesn’t show advantageous performance. This may be due to the heavy weight of the wind turbine and the optimized load experiment is not imposed; as a result, the maximum output power of the high wind speed is not displayed. Consequently, it is suggested that, to reduce the weight, the non-moving parts of the wind turbine should be replaced by aluminum. Also, utilization of hollow material to manufacture removable blades, frames, and the wind-turbine structure can largely reduce the weight. With these suggested modifications, the performance of this new wind turbine should be improved significantly for operating under the high wind speed.

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