Design, simulation and optimization of a novel permanent magnetic driver for vertical axis wind turbine

Wind power has attracted more and more attention throughout the world as a renewable energy, it is very significant to improve utilization of wind energy which is an important part of wind power system. The vertical axis wind turbine can accept any direction to the wind, simple structure, so it has a good application prospect, however, vertical axis wind turbine is not widely used because of the large starting torque. This paper put forward a permanent magnetic driver for the vertical axis wind turbine, overcoming the disadvantage of vertical axis wind turbine and improving the starting performance of the wind turbine. The structure of permanent magnetic driver is designed according to the magnetic drive mechanism and magnetic levitation theory, magnet simulation is used to test the performance of permanent magnetic driver, combined with orthogonal experimental design method to optimize the design of permanent magnetic driver. The drive reach the steady state after a period of time, emerging a small fluctuation range of sinusoidal torque, and it will continue to rotate, after loaded the pulse torque. The results prove that, the permanent magnetic driver for vertical axis wind turbine has the advantages of simple structure, good operation performance and benefit starting torque of the vertical axis wind turbine.