We acted as a lookout kinetic energy into mechanical energy, then mechanical energy into electrical energy, which is wind power. Wind power needs a device called a wind turbine. This wind turbine, in general can be divided into the wind wheel (including the rudder), generator and tower three parts. (Large-scale wind power plant is basically no rudder, generally only a small (including home-based) and have a rudder).
Wind power as a clean, renewable energy, more and more countries around the world attention. Yun amount of its huge, global wind energy is about 2.74 × 109MW, of which wind energy can be used for the 2 × 107MW, wind power than the Earth can be water development and utilization of the total 10 times bigger. Wind has long been people to use – mainly through the windmills for water pumping, grinding, etc., and now people are interested in how to use the wind to generate electricity.
At present the world each year obtain the energy of burning coal, and only wind energy within a year provided by a third. Thus, both domestic and international attention to the use of wind to generate electricity, develop new energy sources.
With the global economic development, wind generator market has developed rapidly. Since 2004, global wind power capacity has doubled from 2006 to 2007, the global wind power installed capacity to expand 27%. 2007 has been 90000 megawatts, by 2010 this figure was 16 megawatts. The next 20-25 years, the world’s wind energy market will increase 25% annually. With the technological advances and development of environmental protection, wind power generation in the business will be fully competitive with coal-fired generation.
