Design and Implementation of Perturb and Observe (P&O) MPPT Technique for Negative Output Super-Lift Luo Converter

Abstract

TThe growing energy demand in recent years has led to increased use of renewable energy resources. Among all renewable energy sources, the photovoltaic (PV) power generation acts as a green source which is free from greenhouse emissions to provide feasible solution to the increasing energy demand. However the non-linear nature of the solar module, their low-efficiency and high capital cost is being the major hindrance to the penetration and reach of the solar photovoltaic systems. To overcome this non-linearity, this paper presents the implementation of Negative Output Super-Lift Luo converter (NOSLC) with the solar panel. NOSLC is a type of super-lift converter in which the negative output voltage increases in geometric progression. Along with this, to track the maximum power from the PV cell, a technique named Perturb and Observe (P&O) Maximum Power Point Tracking (MPPT) is employed. This proposed system is modelled and simulated using MATLAB/Simulink and validated with the theoretical calculations.