Wind Turbine Power Performance Test And Study

Wind energy is becoming increasingly popular renewable energy because of the worldwide energy crisis and people's awareness of environment. Meanwhile, Chinese government has issued a series of policies designed to support wind power industry development. Chinese growth in wind power capacity has been dramatic. But, its related supporting measures lag behind temporarily. One of those is lack of power performance testing for wind turbines.The power performance is the most important factor in assessing the performance of a wind turbine and is the key index to evaluate the technical economy of a wind turbine. Based on the understanding of the wind turbine's structure and working principle, this paper introduces the knowledge of the wind turbine power performance testing.The principle of power performance measurement standards has been studied that based on IEC. Then, a method is put forward that uses an anemometer located at the end of an aft cabin. And this paper proposes two methods for wind speed correction. First, wind speed can be corrected according to the law of conservation of energy. Secondly, wind speed can be corrected according to the Cp curve and the rotor-speed data of a wind wheel. This paper discusses the factors which affect the power performance of a wind turbine, and discusses methods of processing collected data. Based on the VC programming environment this paper is accomplished by C++ language. Then, this paper obtains the correct wind speed data and draws a wind turbine power curve.