PV modeling and Maximum power extraction using Voltage Control Algorithm

Abstract

In this paper a Voltage Control Algorithm (VCA) is implemented for maximum power point tracking (MPPT) from solar photovoltaic (PV) system with less complexity. In addition, single diode model is designed and applied for solar PV modelling without applying any approximation conditions. In modelling, PV manufacturer’s provides limited parameters in datasheet at standard test condition (STC). The information given in the manufacturer’s datasheet is not enough in identification of the characteristic curves of solar PV panel under different climatic conditions. In single diode model has five parameters namely, photo current , diode current ( ), series resistance ( ), shunt resistance ( ) and ideality factor (A). These parameters are extracted using gauss seidal method with the help of manufacturer’s information. The suggested proposed MPPT algorithm is implemented in the DC-DC boost converter and simulation results are compared with existing P&O MPPT technique. Finally the proposed algorithm is able to track maximum power for given solar PV system with less oscillation and less complexity.