A novel dual-leg DC-DC converter for wide range DC-AC conversion

This paper proposes DC–AC Dual-leg dual-stage Conversion (DDC) and DC–AC Direct single-stage conversions (DSC). Conventional energy conversion system has only two-stage conversion, so it has some drawbacks such as huge power loss, less conversion range and lower power rating. So direct conversion, d...

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Main Authors: K. Suresh, E. Parimalasundar
Format: Article
Language:English
Published: Taylor & Francis Group 2022-07-01
Series:Automatika
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/00051144.2022.2056809
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author K. Suresh
E. Parimalasundar
author_facet K. Suresh
E. Parimalasundar
author_sort K. Suresh
collection DOAJ
description This paper proposes DC–AC Dual-leg dual-stage Conversion (DDC) and DC–AC Direct single-stage conversions (DSC). Conventional energy conversion system has only two-stage conversion, so it has some drawbacks such as huge power loss, less conversion range and lower power rating. So direct conversion, dual-leg step-up and step-up conversions are the solutions to get wide voltage conversion efficiently. The proposed converter can perform the power conversion from battery DC supply into AC with 1:1 ratio, step-up AC, and step-down AC in both directions. Also, it can perform rectifier operation from grid AC supply into DC with 1:1 ratio, step-down DC, and step-up DC. Step-up, step-down and ideal operations are possible within a single circuit; its operation is similar to solid-state DC–AC/AC–DC transformer. The ideal operation, Step-down to Step-up conversion and Step-up to Step-down conversion are possible on both sides, so this converter can handle a wide range of voltage. Power distribution is achieved with voltage regulation between battery/DC-load and AC-load/grid using the proposed control strategy with proper modulation. A prototype model of a 2-kW power rating validates the advantages and feasibility of the proposed methodology.
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spelling doaj.art-4e3d9a2e9fce442eb6466640261a761f2022-12-22T02:03:59ZengTaylor & Francis GroupAutomatika0005-11441848-33802022-07-0163357257910.1080/00051144.2022.2056809A novel dual-leg DC-DC converter for wide range DC-AC conversionK. Suresh0E. Parimalasundar1Department of EEE, Sree Vidyanikethan Engineering College, Tirupati, Andhra Pradesh, IndiaDepartment of EEE, Sree Vidyanikethan Engineering College, Tirupati, Andhra Pradesh, IndiaThis paper proposes DC–AC Dual-leg dual-stage Conversion (DDC) and DC–AC Direct single-stage conversions (DSC). Conventional energy conversion system has only two-stage conversion, so it has some drawbacks such as huge power loss, less conversion range and lower power rating. So direct conversion, dual-leg step-up and step-up conversions are the solutions to get wide voltage conversion efficiently. The proposed converter can perform the power conversion from battery DC supply into AC with 1:1 ratio, step-up AC, and step-down AC in both directions. Also, it can perform rectifier operation from grid AC supply into DC with 1:1 ratio, step-down DC, and step-up DC. Step-up, step-down and ideal operations are possible within a single circuit; its operation is similar to solid-state DC–AC/AC–DC transformer. The ideal operation, Step-down to Step-up conversion and Step-up to Step-down conversion are possible on both sides, so this converter can handle a wide range of voltage. Power distribution is achieved with voltage regulation between battery/DC-load and AC-load/grid using the proposed control strategy with proper modulation. A prototype model of a 2-kW power rating validates the advantages and feasibility of the proposed methodology.https://www.tandfonline.com/doi/10.1080/00051144.2022.2056809Boost inverterboost rectifierideal inverterideal rectifierbuck inverterbuck rectifier
spellingShingle K. Suresh
E. Parimalasundar
A novel dual-leg DC-DC converter for wide range DC-AC conversion
Automatika
Boost inverter
boost rectifier
ideal inverter
ideal rectifier
buck inverter
buck rectifier
title A novel dual-leg DC-DC converter for wide range DC-AC conversion
title_full A novel dual-leg DC-DC converter for wide range DC-AC conversion
title_fullStr A novel dual-leg DC-DC converter for wide range DC-AC conversion
title_full_unstemmed A novel dual-leg DC-DC converter for wide range DC-AC conversion
title_short A novel dual-leg DC-DC converter for wide range DC-AC conversion
title_sort novel dual leg dc dc converter for wide range dc ac conversion
topic Boost inverter
boost rectifier
ideal inverter
ideal rectifier
buck inverter
buck rectifier
url https://www.tandfonline.com/doi/10.1080/00051144.2022.2056809
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AT eparimalasundar novelduallegdcdcconverterforwiderangedcacconversion