An Integrated Topology of Three-Port DC-DC Converter for PV-Battery Power Systems

This paper introduces an integrated topology of isolated three-port dc-dc converter (TPC) to interface Photovoltaic (PV) and battery for standalone system. To guarantee zero circulating current flow between different ports while permitting bidirectional power flow at the battery port, auxiliary swit...

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Main Authors: Mostafa I. Marei, Bader N. Alajmi, Ibrahim Abdelsalam, Nabil A. Ahmed
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Open Journal of the Industrial Electronics Society
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9795690/
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author Mostafa I. Marei
Bader N. Alajmi
Ibrahim Abdelsalam
Nabil A. Ahmed
author_facet Mostafa I. Marei
Bader N. Alajmi
Ibrahim Abdelsalam
Nabil A. Ahmed
author_sort Mostafa I. Marei
collection DOAJ
description This paper introduces an integrated topology of isolated three-port dc-dc converter (TPC) to interface Photovoltaic (PV) and battery for standalone system. To guarantee zero circulating current flow between different ports while permitting bidirectional power flow at the battery port, auxiliary switches are utilized with the active bridges of the proposed TPC topology. In addition, a simple switching scheme based on Pulse Width Modulation (PWM) is proposed for the input ports of the TPC. This action eliminates the need for the phase shift modulation used for conventional isolated TPCs. While the PV port is controlled to track the maximum power point, the battery port is managed to regulate the load voltage. The paper presents the detailed mathematical analysis of the different operation modes of the proposed integrated TPC topology and the estimated control limits during charging and discharging of the battery. Consequently, dynamic limiters for the duty cycle of each port are set. The proposed integrated TPC based PV-battery system is simulated using PSCAD/EMTDC software package to validate the analysis of different operation modes and to assess the dynamic performance of the system. Moreover, experimental results are presented to authenticate different operation modes of the proposed TPC topology and to evaluate the dynamic behavior of the integrated PV-battery system.
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spelling doaj.art-433f71ddb162401dabb7d5a3d3b51f402022-12-30T00:00:27ZengIEEEIEEE Open Journal of the Industrial Electronics Society2644-12842022-01-01340941910.1109/OJIES.2022.31829779795690An Integrated Topology of Three-Port DC-DC Converter for PV-Battery Power SystemsMostafa I. Marei0https://orcid.org/0000-0003-3442-4365Bader N. Alajmi1Ibrahim Abdelsalam2https://orcid.org/0000-0002-4140-1711Nabil A. Ahmed3https://orcid.org/0000-0002-3256-7955Electrical Power and Machines Department, Faculty of Engineering, Ain Shams University, Cairo, EgyptDepartment of Electrical Engineering, College of Technological Studies, Public Authority for Applied Education and Training, Shuwaikh, KuwaitElectrical and Control Department, College of Engineering & Technology, Arab Academy for Science, Technology & Maritime Transport, Cairo, EgyptDepartment of Electrical Engineering, College of Technological Studies, Public Authority for Applied Education and Training, Shuwaikh, KuwaitThis paper introduces an integrated topology of isolated three-port dc-dc converter (TPC) to interface Photovoltaic (PV) and battery for standalone system. To guarantee zero circulating current flow between different ports while permitting bidirectional power flow at the battery port, auxiliary switches are utilized with the active bridges of the proposed TPC topology. In addition, a simple switching scheme based on Pulse Width Modulation (PWM) is proposed for the input ports of the TPC. This action eliminates the need for the phase shift modulation used for conventional isolated TPCs. While the PV port is controlled to track the maximum power point, the battery port is managed to regulate the load voltage. The paper presents the detailed mathematical analysis of the different operation modes of the proposed integrated TPC topology and the estimated control limits during charging and discharging of the battery. Consequently, dynamic limiters for the duty cycle of each port are set. The proposed integrated TPC based PV-battery system is simulated using PSCAD/EMTDC software package to validate the analysis of different operation modes and to assess the dynamic performance of the system. Moreover, experimental results are presented to authenticate different operation modes of the proposed TPC topology and to evaluate the dynamic behavior of the integrated PV-battery system.https://ieeexplore.ieee.org/document/9795690/Three-port dc-dc converterPV-battery power systemvoltage regulation
spellingShingle Mostafa I. Marei
Bader N. Alajmi
Ibrahim Abdelsalam
Nabil A. Ahmed
An Integrated Topology of Three-Port DC-DC Converter for PV-Battery Power Systems
IEEE Open Journal of the Industrial Electronics Society
Three-port dc-dc converter
PV-battery power system
voltage regulation
title An Integrated Topology of Three-Port DC-DC Converter for PV-Battery Power Systems
title_full An Integrated Topology of Three-Port DC-DC Converter for PV-Battery Power Systems
title_fullStr An Integrated Topology of Three-Port DC-DC Converter for PV-Battery Power Systems
title_full_unstemmed An Integrated Topology of Three-Port DC-DC Converter for PV-Battery Power Systems
title_short An Integrated Topology of Three-Port DC-DC Converter for PV-Battery Power Systems
title_sort integrated topology of three port dc dc converter for pv battery power systems
topic Three-port dc-dc converter
PV-battery power system
voltage regulation
url https://ieeexplore.ieee.org/document/9795690/
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