Improved perturb and observe maximum peak power tracking for solar satellite systems

Document Type : Original Article

Authors

Electrical Department, Faculty of engineering, Alexandria University, Egypt.

10.1088/1757-899X/610/1/012091

Abstract

The aim of this work is to solve partial shading problem in solar panels to detect the global peak power point that can be used in satellite systems. This can be done by proposing a modified perturb and observe control algorithm depends on comparing all the local peak power points in photovoltaic system to detect the global one, by making initial estimation to the duty cycles of the corresponding local peak power then using perturb and observe to make fine tuning to reach the exact local peak points when oscillations happen. Also to detect the oscillations theory of operation of incremental conductance algorithm is used depending on the difference between incremental conductance and the instantaneous conductance values. The idea of operation is verified using boost converter applied in Matlab/Simulink showing good results. Also variable duty cycle is used to solve the problem of oscillations in output power.
International Conference on Aerospace Sciences and Aviation Technology
Volume 18, Issue 18
18th International Conference on Aerospace Sciences & Aviation Technology 9–11 April 2019
April 2019
Pages 1-11

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