Research On Calculation Method Of Wind Turbine Generation Based On SCADA Data

With the global attention to the issue of environmental pollution,the development of clean energy has become the focus of attention around the world,nowadays the world are vigorously developing wind power industry.The construction of wind farms tends to be stable,and the economic benefits of wind farms and the operation evaluation of wind turbines have been attracted the attention of all walks.The generation capacity of wind turbine is an important index to evaluate the economic benefits after the operation of the wind farm,so it is important to improve the accuracy of the calculation of the generating capacity of wind turbines.Based on the research on the calculation method of power generation,it is found that few studies consider the influence of temperature on electricity power generation.So a calculation model based on temperature normalization is proposed in this paper.The most commonly used power calculation model is a function of wind speed probability density function and wind power generation unit integral.therefore,this paper focus on introduce the wind frequency function and the power curve characteristics of the wind turbine.According to the influence of temperature change on the air density,it is found that air density fluctuations will further affect the output power of the actual wind turbine.In order to eliminate the reduction of power generation,a calculation model is proposed in this paper.In order to verify the accuracy of the model based on the normalized temperature power generation,this paper based on SCADA historical data of a wind farm in Dabancheng region,annual power generation of four wind turbines in that wind farm is calculated.The calculation method of the traditional power generation is compared with the method proposed in this paper,it is found that the calculated value of the power generation when considering temperature is smaller than the traditional algorithm,the calculation of the model proposed in this paper is closer to the actual amount of electricity monitored by the SCADA system,further verify the accuracy of the model.Due to the influence of temperature on the power generation,the manufacturer of the wind turbine should design a control strategy suitable for the temperature characteristics when designing the wind turbine,so as to improve the economic benefit of the wind farm.