Simulation of solar PV system by FLC based bidirectional DC-DC converter for DC loads

Abstract

Solar energy is among the abundant forms of energy, it is very important to make the best use of it. But intermittent nature of solar energy makes PV generation unreliable at times. The use of a battery as an energy storage device can help to mitigate this problem to some extent. A Bidirectional DC-DC converter must be used to connect the battery to the DC link in order to maintain a steady voltage. DC link then connected to a load. In this paper, P&O MPPT technique used to get maximum power from PV array. Fuzzy logic control is used for the effective control of Bidirectional DC-DC converter to charge and discharge battery to keep the DC link voltage constant. Simulations are carried out using MATLAB and outcomes are analysed.