Title: Study on maximum power point tracking control techniques in photovoltaic system
Abstract:Based on the speed and precision of the perturbation and observation method is greatly affected by the perturbed initial value and step size,and point power oscillation phenomenon occurs near the maxi...Based on the speed and precision of the perturbation and observation method is greatly affected by the perturbed initial value and step size,and point power oscillation phenomenon occurs near the maximum power.This paper puts forward an improved perturbation and observation method.When the sunshine changes rapidly,the short circuit current can be used firstly,so that the output power can quickly track near the maximum power point,then the perturbation and observation method with variable step length is used,making the photovoltaic cell work stably in the maximum power point.The simulation results show that the improved method could shorten the time of maximum power point tracking,and almost eliminate the power oscillation phenomenon,thus improving the maximum power point tracking control technology.Read More
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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