本研究使用ANSYS FLUENT軟體對新型垂直軸風力發電機進行模擬分析，探討其流場變化、受力以及力矩關係。傳統垂直軸風力發電機在迎風面葉片接受風能產生推力時，在逆風面的葉片會同時產生阻力，抵銷有效力矩；本研究之新型垂直軸風力發電機在原本風力發電機外又再設置一層固定外導風葉片，其在迎風面能使風有效地被導入到轉子葉片上，使正向力矩能夠提升，而在逆風面則可有效阻擋原本會打在轉子葉片上的風，使逆向力矩下降。
最後採用田口方法找出最佳實驗參數，針對L_9直交表，以轉子葉片角度、轉子葉片數目、固定導風板角度以及固定導風板數目，對力矩最有影響的四個因子進行分析，而最佳化參數設定轉子葉片角度為90度、轉子葉片數為15、固定導風板角度為48度以及固定導風板數為12。

This research uses ANSYS FLUENT software to analyze the new vertical-axis wind turbine in order to investigate the relationship between the flow field, force and torque. When conventional vertical-axis wind turbine blades translate wind power into thrust on the windward side, the blade of upwind side also generate resistance against the effective moment; The new vertical-axis wind turbine has fixed outer guide blades in order to make wind be imported effectively to the rotor blades on the windward to improve the positive torque. In addition, block the wind the guide blades which hits on the rotor blades, on the upwind side. Thus, the reverse torque will be declined.
Finally, using Taguchi method to find the optimal experimental parameters by 9-level orthogonal arrays. Four factors, the angle of rotor blades, the number of rotor blades, the angle of fixed outer guide blades and the number of fixed outer guide blades. The optimal parameters are rotor blade angle of 90 degree, 15 rotor blades, the fixed outer guide blades angle of 48 degree and 12 fixed outer guide blades.

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