Zhi jie Tang, Ping long Liu, Jia li Shen, Jun Luo
Wind energy is a kind of inexhaustible and clean renewable energy. Wind power system has some characters of simple structure, convenient maintenance and easy management, which gets a lot of attention. This paper analyses the composition and the principle of wind power system. Based on variable speed wind power generation device, a new type of wind power controller that can output stable voltage under the condition of variable wind speed has been designed. The whole bridge rectifier module, step-down transformer module, CPU module, CPU power supply module, brake module of wind power controller are introduced in detail. With the simple structure and convenient maintenance and easy management, the controller has solved output stable voltage effectively.