Title: The MPPT strategy of direct-drive wind power system
Abstract: In medium and small power wind power generation systems,duty factor perturbation method is often used to achieve maximum power point tracking,and the method maybe not stable near the maximum power point,so the output power near the maximum power point appears oscillation.To solve this problem,the paper gives an improved method which uses a new variable step size method to reduce duty cycle perturbation step near the maximum power point until the corresponding maximum power point duty ratio is stable.Simulation with the software of the Matlab/Simulink proves that this system has better rapidity and stability.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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