Wind is a new energy with great potential. Clean and renewable, wind energy receives increasing attention from countries around the world. China boasts rich wind resources with the average wind speed faster than 3 meters a second in most of its region. China's efforts to develop wind power can be traced back to as early as the 1970s. In 2010, China's installed wind power capacity exceeded that of the United States, making China the biggest giant in wind power. Wind power has made great contribution to protecting the environment。