A Dual-Buck-Boost DC–DC/AC Universal Converter

This paper proposes a universal converter that is capable of operating in three modes for generating positive dc voltage, negative dc voltage, and sinusoidal ac voltage. By controlling the duty-cycle of two half-bridges, an inductor is operated at a high frequency to control the voltage across two f...

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Main Authors: Yao Rong Ong, Shuyu Cao, Sze Sing Lee, Chee Shen Lim, Max M. Chen, Naser Vosoughi Kurdkandi, Reza Barzegarkhoo, Yam P. Siwakoti
Format: Article
Language:English
Published: MDPI AG 2022-06-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/11/13/1973
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author Yao Rong Ong
Shuyu Cao
Sze Sing Lee
Chee Shen Lim
Max M. Chen
Naser Vosoughi Kurdkandi
Reza Barzegarkhoo
Yam P. Siwakoti
author_facet Yao Rong Ong
Shuyu Cao
Sze Sing Lee
Chee Shen Lim
Max M. Chen
Naser Vosoughi Kurdkandi
Reza Barzegarkhoo
Yam P. Siwakoti
author_sort Yao Rong Ong
collection DOAJ
description This paper proposes a universal converter that is capable of operating in three modes for generating positive dc voltage, negative dc voltage, and sinusoidal ac voltage. By controlling the duty-cycle of two half-bridges, an inductor is operated at a high frequency to control the voltage across two film capacitors that constitute a dual-buck-boost converter. Two additional half-bridges operating at a fixed state or line frequency are used to select the mode of operation. Compared to the latest universal converter in the recent literature, the proposed topology has the same switch count while reducing the number of conducting switches for inductor current and reducing the number of switches operating at high frequency. The operation of the proposed dual-buck-boost dc–dc/ac universal converter is analyzed. Experimental results are presented for validation. The power conversion efficiency of the 100 W experimental prototype modeled in PLECS is approximately 98%.
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spelling doaj.art-48c2b76a6bd043e7ad87a4696025910a2023-11-23T19:50:46ZengMDPI AGElectronics2079-92922022-06-011113197310.3390/electronics11131973A Dual-Buck-Boost DC–DC/AC Universal ConverterYao Rong Ong0Shuyu Cao1Sze Sing Lee2Chee Shen Lim3Max M. Chen4Naser Vosoughi Kurdkandi5Reza Barzegarkhoo6Yam P. Siwakoti7Electrical Power Engineering, Newcastle University, Singapore 567739, SingaporeElectrical Power Engineering, Singapore Institute of Technology, Singapore 567739, SingaporeElectrical Power Engineering, Newcastle University, Singapore 567739, SingaporeDepartment of Electrical and Electronic Engineering, Xi’an Jiaotong-Liverpool University, Suzhou 215123, ChinaDepartment of Electronic Engineering, The Chinese University of Hong Kong, Hong KongDepartment of Electrical Power Engineering and Mechatronics, Tallinn University of Technology, 10120 Tallinn, EstoniaFaculty of Engineering and Information Technology, University of Technology Sydney, Ultimo, NSW 2007, AustraliaFaculty of Engineering and Information Technology, University of Technology Sydney, Ultimo, NSW 2007, AustraliaThis paper proposes a universal converter that is capable of operating in three modes for generating positive dc voltage, negative dc voltage, and sinusoidal ac voltage. By controlling the duty-cycle of two half-bridges, an inductor is operated at a high frequency to control the voltage across two film capacitors that constitute a dual-buck-boost converter. Two additional half-bridges operating at a fixed state or line frequency are used to select the mode of operation. Compared to the latest universal converter in the recent literature, the proposed topology has the same switch count while reducing the number of conducting switches for inductor current and reducing the number of switches operating at high frequency. The operation of the proposed dual-buck-boost dc–dc/ac universal converter is analyzed. Experimental results are presented for validation. The power conversion efficiency of the 100 W experimental prototype modeled in PLECS is approximately 98%.https://www.mdpi.com/2079-9292/11/13/1973buck-boost converteruniversal converter
spellingShingle Yao Rong Ong
Shuyu Cao
Sze Sing Lee
Chee Shen Lim
Max M. Chen
Naser Vosoughi Kurdkandi
Reza Barzegarkhoo
Yam P. Siwakoti
A Dual-Buck-Boost DC–DC/AC Universal Converter
Electronics
buck-boost converter
universal converter
title A Dual-Buck-Boost DC–DC/AC Universal Converter
title_full A Dual-Buck-Boost DC–DC/AC Universal Converter
title_fullStr A Dual-Buck-Boost DC–DC/AC Universal Converter
title_full_unstemmed A Dual-Buck-Boost DC–DC/AC Universal Converter
title_short A Dual-Buck-Boost DC–DC/AC Universal Converter
title_sort dual buck boost dc dc ac universal converter
topic buck-boost converter
universal converter
url https://www.mdpi.com/2079-9292/11/13/1973
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