Fuzzy Control On The Variable Speed Control Of 1MW Wind Turbine

Development of wind electricity conversion system (WECS) not merely can save the routine energy resources, but also is favor of the environmental protection and one of the effective ways of improving the makeup of the energy resources and decreasing pollution of the environment. Thus it can bring immediate economic benefits, community benefits and environment benefits. The objective of this dissertation, depending on national" 863 " high technique R&D program—" megawatt grade variable speed constant frequency (VSCF) wind turbine generator ", to improve dynamic performance and the steady performance of VSCF wind electricity system ,that is to make the system achieve zero-tracking-error with satisfying damp ratio,maintaining the system control flexibility and rejecting the gust disturbance at the same time.The research possesses the significant practical purposes.In wind-power electricity generation, is it turn into distance wind-powered electricity system of controlling etc. because their with high efficiency controlling flexibility advantaging such as being kind to change speed, become wind-powered electricity trend of control system more and more, and as one more than variable, dynamic non-linear system much, it is higher too that its control is complicated. This paper optimizes the reseach of the control system as the central task with the power of 1000kW wind-turbine, talk about the variable speed control method and intellectual control method, the structure of the control system and question of three respects of the function have launched deepenning, careful research work, the main content includes:In controlling method ,it have set up a simple and practical mathematics model, and has discussed the control of 1MW wind-turbine generating set and based on this turned into the design the fuzzy logic controller of speed. It have discussed the wind-turbine electricity generation control system of the speed and working course.It have studied the fuzzy application and function in the long-range monitoring system of electric field of wind of logic control. Adopted fuzzy logic control to follow power and speed of wind energy at the same time, indicate through MATLAB emulation result: Designedcontroller have excellent and kind responding fast, following of good performance characteristicking.It have also introduced the stability analytical method of the fuzzy control system in this thesis, this fuzzy control system is succeeded by a series of some fuzzy model sets. This controller was feedbacked independently by every some model, it indicated under certain ground condition, person who design controller can is it close ring fuzzy overall stability of control system to guarantee.