The Coupling Analysis Between Wind Characteristics And Wind Turbine Generator System Dynamic Behaviours

With the world on environmental protection, energy shortages and energy issues such as the growing concern and our country for the construction of a harmonious society needs to adjust the energy strategy is an inevitable trend. It is necessary to maintain our country's rapid economic development we want to deal with the increasingly serious problem of energy shortage and environmental pollution problems, development of renewable energy to solve the problem is an important way.Wind energy as one of the Renewable energy is a non-air pollution, no waste, natural, clean energy. But Wind is not only the size of the vector and direction, wind speed and direction change with the seasons and time, with the many uncertain factors for the wind turbine, how to get the most wind power and convert them to electricity efficiently and reliablily, a number of key issues to be resolved. Our country as the world's wind power, do not have the independent development of wind turbines, especially large-scale wind turbine capacity. The related basic research, experimental research and design standards are the main constraints. This article is available at a great deal of relevant information both at home and abroad, the overall development of wind turbines were investigated on the basis of our country at this stage, in accordance with scientific and technological project of Lanzhou "Detection of large-scale wind power and monitoring feedback devices (Item Number:2008-1-16)", based on Gamesa's production-type G80-2.0MW wind turbine at Yumen of Gansu. Introduce a large-scale wind turbine's basic theory, and in accordance with theoretical analysis and modeling method to conduct a systematic analysis and simplify to the transmission system in order to set up the rigid and flexible transmission system of mathematical modeling. In considering China's climatic conditions and wind conditions use MATLAB/SIMULINK toolbox on dynamic simulation of the rigid and flexible transmission system, then compare the simulation results.This issue's rearch can provide theory of parameters and control methods for monitoring and feedback control system of the state of wind turbine which adapted to the characteristics of China's wind resources. This will enhance the country's large-scale wind turbine design quality, get more reliable control strategy and it plays an important role on digestion and absorption of the foreign's wind turbine.