| In recent years,many countries pay attention to renewable resources,while,the technology of wind power as a form of clean resource with the rapidest speed of devolpment absorbs much attention,many states invest a lot of funds and manpower to study the wind power generation technology.According to current research,the wind power technology of variable speed constant frequency(VSCF)is the most promising one.As a brushless doubly-fed machine(BDFM)can generate variable speed constant frequency voltage on the condition of brushless,it is a promising speed Constant Frequency forms of power generation,so it's necessary to conduct further studies.Brushless doubly-fed VSCF wind power generation control system as the research object, the paper is mainly focus on following aspects:1.analyzed the existing wind power control methods;it's proposed that birnging the active disturbance rejection controller into the wind power control systerm.At the same time,aimed at the large amount of adjustable parameters and the difficulty of setting,a optimization design of auto disturbance rejection controller parameter based on improved particle swarm algorithm is proposed,and simulation examples is given to demonstrate its practicability.2.Different realization forms of AC excitation power supply are discussed;the mathematical model and control methods of grid-side convertor with unbalanced voltage condition are analysized especially.Aimed to the question that the grid-side convertor will produce a frequency of 100HZ ripple voltage with unbalanced voltage condition,a novel control strategy based on the active disturbance rejection controller is put forward,and a simulation model is established to verify the new control.3.It summarized the mathematical models and the existing control stategy of brushless Doubly-fed Mechine.The technology of direct torque control is introduced to the doubly-fed wond power generator,and the model of system was established and simulation was implemented.
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