Simulation based study of maximum power point tracking and frequency regulation for stand-alone solar photovoltaic systems

Abstract

The main objective of this paper is to develop a simulation model of stand-alone solar photovoltaic (PV) system based on mathematical models. A maximum power point tracking (MPPT) algorithm based on incremental conductance method is applied to extract the maximum power from solar PV energy conversion system. A DC/DC boost converter allows the MPPT to control the intermediate voltage. To regulate to voltage at load side a voltage source converter (VSC) based controller is applied to generate the pulse signal for three-phase inverter. The frequency regulation controller is developed based on conventional phase locked loop (PLL) system along with resistive dumping loads. A simulation model based on mathematical model is constructed using Matlab®/Simulink®/SimPower® interface. Results from simulation are stated to demonstrate the behaviour of stand-alone solar PV energy conversion system.