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主要研究了在垂直轴风力机叶片前缘表面粘贴等离子发生电极产生等离子流,对风力机风能利用系数的影响。实验采用NACA0018翼型,在翼型前缘特殊处理粘贴等离子电极,并保持翼型原有气动外型。实验风力机安装4片叶片,分别研究有无等离子时风力机风能利用系数。实验结果表明,由于垂直轴风机叶片做正功在一定的角度范围内,并随风机旋转周期性变化,而等离子流恰恰延迟了气流在叶片上的分离时间,也就是增加了叶片做正功的角度范围,从而提高了叶片做功能力。同时等离子流也相应减少了叶片的阻力,总体提高了风能的吸收。研究表明加装等离子流风能利用系数可提高5%以上。但产生等离子流需要消耗电能,因此带来的能效与消耗需要进一步研究。
Mainly studied the vertical axis of the wind turbine blade paste the plasma front electrode surface plasma generated by the plasma, the wind turbine wind energy utilization factor. Experiments using NACA0018 airfoil, airfoil leading edge special paste plasma electrodes, and maintain the original airfoil aerodynamic appearance. Experimental wind turbine installed four leaves, respectively, with or without wind turbine wind energy utilization factor. The experimental results show that, because the vertical axis of the fan blades do positive work in a certain range of angles and cyclical changes with the fan rotation, and plasma flow just delayed the air flow in the leaves of the separation time, which is increased by the blade to do positive work The range of angles, thereby enhancing the blade doing power. At the same time, the plasma flow also reduces the resistance of the blades and generally increases the absorption of wind energy. The research shows that the utilization factor of plasma flow can be increased by 5% or more. However, the generation of plasma flow requires energy consumption, so the energy efficiency and consumption need to be further studied.