Development of vertical axial wind turbine driven by three hastate windmill and permanent magnet generator

Wind energy is a clear, safe and renewable green energy resource. Because it can be supplied inexhaustibly and always be used availably, it is exploited by countries all over the world and has gradually become a new energy type. According to the wind energy characteristics and the hydrodynamics theory, the vertical axial wind turbine of three hastate windmill, which can convey the intra-cavity wind energy, is developed in this paper. The power principles of permanent magnet is used to construct the technique of the speed loss and controlled wind power generation which is coaxial with the wind turbine of three hastate windmill. The experimental results show that this invention has many advantages such as simple structure, high utilization efficiency of wind energy, low startup wind speed, high equipment reliability and good maintainability. This invention has broad application prospect in the market with great economic value, and profound social significance on the environment-friendly green energy industries of China and even the whole world.