ISSN(Online) : 2319-8753 ISSN (Print) : 2347-6710 International Journal of Innovative Research in Science, Engineering and Technology (An ISO 3297: 2007 Certified Organization) Vol. 5, Special Issue 9, May 2016 Copyright to IJIRSET DOI:10.15680/IJIRSET.2016.0505609 649 Design and Simulation of Interleaved DC-DC Boost Converter for Stand-alone Systems Using Solar Panel Rupesh K C 1 , Naziya Parveen 2 Assistant Professor, Dept. of E&EE, Siddaganga Institute of Technology, Tumakuru, Karnataka, India 1 PG Student, Dept. of E&EE, Siddaganga Institute of Technology, Tumakuru, Karnataka, India 2 ABSTRACT: This paper describes the development of photovoltaic applications with highly reliable and efficient converter and inverter equipped with advanced control strategies, which made the photovoltaic system compatible for higher power ratings. In this paper a number of solar PV modules are interconnected to generate abundant electrical energy which is connected to an interleaved boost converter and single phase voltage source inverter through which the energy is evacuated to the load. The interleaved boost converter is controlled by maximum power point tracking (MPPT) and the inverter is controlled by sinusoidal pulse width modulation technique (SPWM). The proposed system eliminates the use of low frequency transformers at the AC side which reduces a major part of the power losses. The proposed system is simulated using PSIM 9.3. KEYWORDS: Interleaved boost converter, MPPT algotithm, single phase voltage source inverter, SPWM technique. I. INTRODUCTION With the increase in the power demand and limited fossil fuels the renewable energy source plays a vital role to overcome these challenges. The fossil fuels based energy source causes environmental pollution. This led to the need for renewable energy sources (solar, wind, biomass) which is abundant and pollution free [1]-[3]. DC-DC converters play a vital role in photovoltaic (PV) systems as power interface. For stand-alone PV systems such as water pumps, LED, and signals, the MPPT technique is implemented [4]-[5]. Interleaved DC-DC converter is a technique where it can be implemented by paralleling the converters such that it reduces the switching stress and peak inductor current compared to conventional boost converter [6]. The block diagram of proposed system is as shown in fig.1. Figure 1: Block diagram of proposed system In this fig.1 the PV panel is used as input to the interleaved boost converter. The output of an interleaved boost converter is fed to 1-Ф SPWM inverter. In order to increase the efficiency of solar panel the MPPT technique is used. In this work the perturb and observe (P&O) MPPT technique is employed.