Vertical Axis Wind Power Generation System Based on Wind Energy Characteristics of Highway Vehicle Bypass Flow

Wind power generation have been widely used in some areas with abundant wind energy resources. But for areas with weak winds and poor sustained wind power, the wind energy is wasted. Therefore, making full use of all kinds of intermittent weak wind energy is very important in some scenarios. Aiming at the intermittent weak wind generated by vehicle bypass flow on highway, this paper proposes a method of power generation from vertical axis wind turbine. Firstly, the key factors affecting wind turbine power are analyzed and the relationship between vehicle speed and wind speed is discussed in depth. Secondly, the simulation is used to optimize the optimal installation position of the vertical axis wind power generation system, which shows the feasibility of using vehicle bypass flow to generate power. Finally, a vertical axis wind power generation system prototype is designed, manufactured and tested in the field. The experimental results show that when the wind speed reaches 7m/s, the output power of vertical axis wind power generation system can reach 14.52W, which can basically meet the demand of small lighting equipment. In order to further study, the utilization of weak intermittent wind energy, this study has carried out a positive and beneficial exploration.