垂直軸式FRP多階式風力機轉子之研製

一種多階式垂直軸型複材風力機葉輪，具有改良型薩瓦尼（Savonius）轉子系統之設計及製程被呈現。其中改良型薩瓦尼轉子系統是由S型葉片組件及圓型端板葉片組件所組成，而S型葉片組件是由兩個半桶型組成，剛好設定夾於上下圓型端板之間且互相重疊於圓中心距，使整體轉子系統繞著中心垂直軸旋轉產生風洞效應。而一種真空樹脂轉注成型法及擠壓成型法各被應用於該複材半桶型葉片及圓形端板預成形物組件，其中預成形物更包括S型玻璃纖維布、圓型玻璃纖維布、圓型瓦楞板芯材及金屬軸桿等嵌入物所組成三明治結構體。藉由以上預成形物組合，再利用真空樹脂轉注成型法（VA-RTM）將半桶型葉片組件抽真空灌注樹脂並熱硬化成形，同時也藉由擠壓成型法利用瓦楞板芯材之彈性性質與玻璃纖維布、樹脂予以擠壓熱硬化一體成形。其中嵌入物結構包括具有根部金屬軸桿及圓型瓦楞板芯材等設計為具有補強、減重多重功能及材料機械行為。在這研究中也利用膠合製程技術將各單階葉片組件膠合成多階式複材風力機葉輪轉子系統。在理論分析及量測方面，利用有限單元分析軟體ANSYS來分析複材葉輪結構應力分佈及量測實驗如葉輪扭力疲勞破壞試驗、模態頻譜測試及風洞轉速等來驗證說明其風力機葉輪結構體強度之功能性、完整性。

關鍵字

垂直軸型風力機；真空樹脂轉注成型法；擠壓成型法；膠合製程技術

並列摘要

The design and fabrication of a multi-stage composite vertical axis wind turbine (VAWT) with modified Savonius rotor system are presented. Modified Savonius rotor system made out of the S-shaped blades between two circular end plates is a very simple concept where the whole rotor turns around a vertical axis. A vacuum assisted resin transfer molding (VARTM) technique was used to fabricate composite blade and end plate by stacking pieces of glass-fiber fabrics and polypropylene corrugated core in a vacuum pressure mold. In VARTM, resin is injected under pressure into a rigid mold filled with fiber preform and subsequent curing. These preforms include the circular polypropylene corrugated core and S-shaped glass fabric structures. This research will also be used to develop adhesive bonding technique for multi-stage components in composite vertical axis wind turbine rotor. The cured parts were subjected to static test to validate the reliability of the multi-stage composite rotor. The multi-stage composite rotor was used to fabricate a 1kW wind power system for long terms endurance and efficiency testing. A number of composite VAWT rotors were fabricated to demonstrate the feasibility and applications of the proposed manufacturing method.

並列關鍵字

Multi-stage composite rotor ； Vertical axis wind turbine ； VARTM technique ； Adhesive bonding technique

國際替代計量

垂直軸式FRP多階式風力機轉子之研製

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