Design and Analysis of a Novel High-Gain DC-DC Boost Converter with Low Component Count

Usman Rafiq,Hadeed A Sher,Dario Gandini,Ali Faisal Murtaza

doi:10.3390/electronics10151761

Abstract

In this paper, a novel high-gain DC-DC boost converter with reduced component count is proposed. The converter that is proposed in this paper provides high DC voltage gain, while keeping the overall component count significantly lower in comparison to some similar high voltage gain DC-DC converters presented recently. The proposed converter uses only one power switch, two inductors, two capacitors, and three didoes to achieve high-voltage gain, without a significant compromise on the efficiency. In addition, the proposed design uses small passive component sizes compared to other similar designs of the same power rating. Due to the reduced component count, and hence the small physical size, the proposed converter will find applications in several practical domains, ranging from industrial control embedded systems to the DC transmission bus bars in fully electrical vehicles and renewable energy distribution grids. A 250 Watts prototype of this newly proposed DC-DC boost converter was implemented and simulated using the PSIM simulation tool. The promising simulation results proved the reliable performance of the proposed DC-DC boost converter design.

Highlights

Several new topologies have been proposed in recent years that are intended to cope with this challenge of obtaining high DC voltage gain, while keeping the overall design economical [1]
It has been estimated that in the near future, the requirement for renewable energy will increase threefold, the need for increasingly improved topologies of DC-DC boost converters has become the focus of researchers
The converter presented in this paper proposes a solution to this problem by introducing a new topology, to achieve high-voltage gain with a reduced component count, and without significant reductions in efficiency

Summary

Introduction

The DC voltage levels provided by PV panels are not high enough to drive domestic lighting [3] In such lighting equipment, several ultra-bright LEDs are connected in series to obtain high luminescence. Several ultra-bright LEDs are connected in series to obtain high luminescence These strings of LEDs generally require voltage levels up to 80 V to 100 V, backed by switch-mode boost converters. In such applications, multilevel converters are widely used for their simple structure and higher voltage gain [4]. Another popular scheme that has been adopted to meet the requirements of high-voltage gain in hybrid vehicles and smart homes is a switched-capacitor based converter topology, as presented in [5]

Methods

Results

Discussion

Conclusion