Since the birth of human, for the use of energy and development will never stop, along with the development of the world economy, fuel use of energy, led to the poisonous and harmful gas emissions, which cause serious damage to human health, and brought serious greenhouse effect, so looking for a clean, non-polluting, renewable alternative energy resources is the important subject faced by the current human world.Wind, as a kind of "natural resource", has come into the view of mankind for a long time.