A study for adaptive control interval of small size wind power system controlled by hill-climbing Method

Abstract

Wind mills are important in places like agricultural areas in bad spots, distant islands, mountain divisions and so on which needs power supply . The propeller type wind mill and direct current generator can be used as a small wind force electric generator in such areas. Most of the wind mills used in the present needs a good wind supply without much changers in the speed. But we can not use this kind of systems everywhere, because of the wind environment dose not satisfy these standard. But we have developed a system that functions efficiently according to wind environment of the place. We have used Hill-Climbing method to control the system. So we can set the system to the highest efficiency without knowing the basic input data like wind velocity and system constants. However, in this method it takes time to find the right settings and even could be end up without find the precious settings which gives the maximum output. In order to Settle this problem we have developed a controlling system that can change it's controlling interval according to the changing rate of the electric generator output. The simulation of this system shows the electric energy generation has increase approximately by 12% comparing to the systems with constant controlling intervals.