Single Magnetic Element-Based High Step-Up Converter for Energy Storage and Photovoltaic System with Reduced Device Count

Muhammad Arif,Muhammad Shamrooz Aslam,Qianmu Li,Mohsin Shahzad,Jawad Saleem,Abdul Majid,Marcio Eisencraft

doi:10.1155/2020/5892190

Abstract

The multiport DC-DC power converter is a prominent area of research in power electronics due to its highly dense design, reduced device count, and high energy efficiency. In this paper, a nonisolated single magnetic element-based high step-up three-port converter for an energy storage system is presented. The proposed converter has two input ports and one output port. The coupled inductor with switched capacitor is used to achieve high voltage gain. The key features of the proposed converter are high conversion gain, low voltage stress, zero voltage switching (ZVS), and zero current switching (ZCS). The detailed theoretical analysis and operation of the converter are elaborated. The energy efficiency of the proposed converter is calculated and compared with the other counterparts. Ansys Maxwell is used for the coupled inductor finite element modeling. To verify the applicability and functionality of proposed converter, a 100 W converter with two inputs ( 48 V and 96 V ) and one output 360 V at 100 kHz is tested in the laboratory.

Highlights

Academic Editor: Marcio Eisencraft e multiport DC-DC power converter is a prominent area of research in power electronics due to its highly dense design, reduced device count, and high energy efficiency
Recent advances and topologies used for the integration of renewable sources are discussed in [5]. ere are some challenges that need to be addressed in three-port converter (TPC) such as minimum device count, high voltage gain, optimal control for power sharing, and smooth transition between operating modes
E partly isolated structures are good with prominent features of high power density and efficiency. e nonisolated three-port converter topologies are preferred because of reduced size, cost, and high power density [5]. e nonisolated topologies are more suitable for standalone PV and low voltage distribution and storage system [3,4,5]

Summary

Introduction

Academic Editor: Marcio Eisencraft e multiport DC-DC power converter is a prominent area of research in power electronics due to its highly dense design, reduced device count, and high energy efficiency. E coupled inductor with switched capacitor is used to achieve high voltage gain. Ere are some challenges that need to be addressed in TPC such as minimum device count, high voltage gain, optimal control for power sharing, and smooth transition between operating modes. E coupled inductors, transformers, multipliers, and switched capacitors are some of the various techniques used to achieve high voltage gain [5, 6]. E nonisolated three-port converter topologies are preferred because of reduced size, cost, and high power density [5]. In [24], a coupled inductor-based high step-up TPC with high conversion gain for PV integration has been proposed. A soft switching high gain TPC with the merits of soft switching and demerits of high component count and two coupled inductors is discussed in [25]. In [27,28,29], the authors presented modeling and control of a three-port converter for various applications

Methods

Results

Conclusion