Solar PV System With Modified High Gain SEPIC Converter And Multiple Step Size P&O MPPT Technique

Abstract

For efficient and economic operation of solar Photo Voltaic (SPV) systems, Maximum Power Point Tracking (MPPT) algorithms and power interfacing units (dc-dc converters) play a vibrant role. High Gain SEPIC (Single-Ended Primary-Inductor Converter) with multi Step Size (MSS) P&O MPPT technique is chosen for the analysis of the solar PV system, which is discussed in this paper. A complete simulation study is performed for various environmental conditions in MATLAB/Simulink and results are presented. Performance analysis of the system are done in terms of tracking speed, amount of ripple content in the input current and output voltage of the dc-dc SEPIC converter.