Integration of non-isolated DC–DC converters in battery storage systems – a topological exploration

This paper presents a topological exploration and evaluation of modularised battery systems with integrated non-isolated DC–DC converters (battery-integrated-converters). Converter requirements for battery operation in charging/discharging, charge balance, bypass, and pass-through modes have been co...

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Main Authors: Razieh Khanaki, Geoffrey R. Walker, Mark A H. Broadmeadow, Gerard F. Ledwich
Format: Article
Language:English
Published: Wiley 2019-05-01
Series:The Journal of Engineering
Subjects:
Online Access:https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8017
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author Razieh Khanaki
Geoffrey R. Walker
Mark A H. Broadmeadow
Gerard F. Ledwich
author_facet Razieh Khanaki
Geoffrey R. Walker
Mark A H. Broadmeadow
Gerard F. Ledwich
author_sort Razieh Khanaki
collection DOAJ
description This paper presents a topological exploration and evaluation of modularised battery systems with integrated non-isolated DC–DC converters (battery-integrated-converters). Converter requirements for battery operation in charging/discharging, charge balance, bypass, and pass-through modes have been considered. Topological variations have been derived to permit all battery operation modes. Design considerations and equations for each topology have been presented. The topological requirements have been summarised in tabular form with a 380 V bus storage system case study presented to demonstrate application of the design consideration discusses to a typical battery system specification. The comparison shows the buck, boost, and non-inverting buck-boost-based converters are all similarly suitable, and other performance metrics are likely to determine the best choice for a given set of circumstances.
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spelling doaj.art-dd99636bc968443d97417fd163a01f4f2022-12-21T19:39:00ZengWileyThe Journal of Engineering2051-33052019-05-0110.1049/joe.2018.8017JOE.2018.8017Integration of non-isolated DC–DC converters in battery storage systems – a topological explorationRazieh Khanaki0Geoffrey R. Walker1Mark A H. Broadmeadow2Gerard F. Ledwich3Queensland University of Technology (QUT)Queensland University of Technology (QUT)Queensland University of Technology (QUT)Queensland University of Technology (QUT)This paper presents a topological exploration and evaluation of modularised battery systems with integrated non-isolated DC–DC converters (battery-integrated-converters). Converter requirements for battery operation in charging/discharging, charge balance, bypass, and pass-through modes have been considered. Topological variations have been derived to permit all battery operation modes. Design considerations and equations for each topology have been presented. The topological requirements have been summarised in tabular form with a 380 V bus storage system case study presented to demonstrate application of the design consideration discusses to a typical battery system specification. The comparison shows the buck, boost, and non-inverting buck-boost-based converters are all similarly suitable, and other performance metrics are likely to determine the best choice for a given set of circumstances.https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8017DC-DC power convertorsbattery storage plantsvoltage 380.0 Vnonisolated DC–DC convertersbus storage system case studybattery system specificationnoninverting buck-boost-based converterstopological requirementsbattery operation modestopological variationsbattery-integrated-convertersmodularised battery systemstopological explorationbattery storage systems
spellingShingle Razieh Khanaki
Geoffrey R. Walker
Mark A H. Broadmeadow
Gerard F. Ledwich
Integration of non-isolated DC–DC converters in battery storage systems – a topological exploration
The Journal of Engineering
DC-DC power convertors
battery storage plants
voltage 380.0 V
nonisolated DC–DC converters
bus storage system case study
battery system specification
noninverting buck-boost-based converters
topological requirements
battery operation modes
topological variations
battery-integrated-converters
modularised battery systems
topological exploration
battery storage systems
title Integration of non-isolated DC–DC converters in battery storage systems – a topological exploration
title_full Integration of non-isolated DC–DC converters in battery storage systems – a topological exploration
title_fullStr Integration of non-isolated DC–DC converters in battery storage systems – a topological exploration
title_full_unstemmed Integration of non-isolated DC–DC converters in battery storage systems – a topological exploration
title_short Integration of non-isolated DC–DC converters in battery storage systems – a topological exploration
title_sort integration of non isolated dc dc converters in battery storage systems a topological exploration
topic DC-DC power convertors
battery storage plants
voltage 380.0 V
nonisolated DC–DC converters
bus storage system case study
battery system specification
noninverting buck-boost-based converters
topological requirements
battery operation modes
topological variations
battery-integrated-converters
modularised battery systems
topological exploration
battery storage systems
url https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8017
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AT markahbroadmeadow integrationofnonisolateddcdcconvertersinbatterystoragesystemsatopologicalexploration
AT gerardfledwich integrationofnonisolateddcdcconvertersinbatterystoragesystemsatopologicalexploration