Influence of structure parameters on torque performance of vertical axis wind turbine at low rotational speed

摘要

The object in this article is to show you the influence of structure parameters on the vertical axis wind turbine at low speed starting after the output torque by wind tunnel test. Two types of airfoil, two kinds of wind turbine radius and three kinds of number of blade were used in test, also joined the Savonius resistance of the wind wheel, a total of 24 group tests. The effects of wind turbine airfoil, radius and the number of blades on the output torque were analyzed. Then through the contrast tests of adding Savonius in the same condition, the effects of three kinds of parameters on, the output torque is tested. The results show that the wind turbine, airfoil, radius, the number of blades will affect the output torque on the vertical axis wind turbine; the effects of wind wheel with Savonius on output torque at low speed of vertical axis wind turbine was improved obviously.