Duty ratio control schemes of DC-DC boost converter integrated with solar PV system

Abstract

In this paper, the duty ratio control schemes of DC-DC boost converter has investigated in two types. Firstly, the duty ratio control scheme is shown with maximum power point tracking (MPPT) techniques such as constant voltage controller (CVC) and Fuzzy logic controller (FLC), integrated with solar photovoltaic (PV) system. These MPPT techniques are used to achieve the maximum power point (MPP) through solar Photovoltaic system with help of duty ratio control of DC-DC boost converter. Another control scheme, such as Proportional integral (PI), Fuzzy Logic based controller to reconciled the duty ratio of DC-DC boost converter, are discussed also. The study and transient analysis of both control schemes is carried out throughout the paper. A resistive load is considered for transient analysis and complete system is structured in MATLAB/Simulink environment.