Maximum Power Point Tracking for Satellite Solar Power Load Matching under Different Light Panels

Abstract

This paper presents, providing the matched load solar power plants satellite with multi-directional panels of photovoltaic cells under different light panels by introducing the method of tracking the point of maximum power photovoltaic panels using maximum power coefficient (KP). Maximum Power Point Tracking (MPPT) controller for solar power system is modeled using MATLAB Simulink. The model consists of PV array, boost converter, MPPT controller, charger, batteries and main bus. The proposed is a maximum power coefficient (KP) and modified hill climbing MPPT method. The boost converter model is changed by varying the duty cycle, so that the maximum power point could be tracked when the environmental changes. Traditional method fail to ensure successful tracking of the maximum power point under different light panels. This performs in significant reduction in the power generated as well as the reliability of the photovoltaic energy production system. The power system is simulated in operating parallel mode worked on main bus with VOUT= 40, 45, 50 volts dependence Pout from duty cycle D. Existing methods of maximum power point tracking of such systems not always can to search surely for maximum power point if there are existing  some local maximums of power under different light panels.