A Reduced-Order Enhanced State Observer Control of DC-DC Buck Converter

This paper presents a reduced-order-enhanced state observer (RESO)-based control strategy for the PWM dc-dc buck converter. With the proposed RESO control strategy, the output voltage regulation of the dc-dc buck converter is able to achieve robust characteristics against the external disturbance an...

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Main Authors: Jinghang Lu, Mehdi Savaghebi, Yajuan Guan, Juan C. Vasquez, Amer M. Y. M. Ghias, Josep M. Guerrero
Format: Article
Language:English
Published: IEEE 2018-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8472209/
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spelling doaj-c0cb0b25511d4760918cb4f92711ecd62021-03-29T20:56:41ZengIEEEIEEE Access2169-35362018-01-016561845619110.1109/ACCESS.2018.28721568472209A Reduced-Order Enhanced State Observer Control of DC-DC Buck ConverterJinghang Lu0https://orcid.org/0000-0003-4448-5567Mehdi Savaghebi1https://orcid.org/0000-0001-6188-0265Yajuan Guan2Juan C. Vasquez3Amer M. Y. M. Ghias4Josep M. Guerrero5Department of Energy Technology, Aalborg University, Aalborg, DenmarkDepartment of Electrical Engineering, University of Southern Denmark, Odense, DenmarkDepartment of Energy Technology, Aalborg University, Aalborg, DenmarkDepartment of Energy Technology, Aalborg University, Aalborg, DenmarkDepartment of Electrical and Electronic Engineering, Nanyang Technological University, SingaporeDepartment of Energy Technology, Aalborg University, Aalborg, DenmarkThis paper presents a reduced-order-enhanced state observer (RESO)-based control strategy for the PWM dc-dc buck converter. With the proposed RESO control strategy, the output voltage regulation of the dc-dc buck converter is able to achieve robust characteristics against the external disturbance and the internal parameter variation even without output current measurement. In addition, by incorporating the RESO in the controller, the output voltage regulation can be easily achieved with only a proportional gain to realize a zero steady-state error. Finally, the parameter design is discussed and the effectiveness of the proposed control strategy is verified with an experimental case study.https://ieeexplore.ieee.org/document/8472209/DC-DC buck converterdisturbance rejectionreduced-order enhanced state observerrobustnesssystem parameter variation
collection DOAJ
language English
format Article
sources DOAJ
author Jinghang Lu
Mehdi Savaghebi
Yajuan Guan
Juan C. Vasquez
Amer M. Y. M. Ghias
Josep M. Guerrero
spellingShingle Jinghang Lu
Mehdi Savaghebi
Yajuan Guan
Juan C. Vasquez
Amer M. Y. M. Ghias
Josep M. Guerrero
A Reduced-Order Enhanced State Observer Control of DC-DC Buck Converter
IEEE Access
DC-DC buck converter
disturbance rejection
reduced-order enhanced state observer
robustness
system parameter variation
author_facet Jinghang Lu
Mehdi Savaghebi
Yajuan Guan
Juan C. Vasquez
Amer M. Y. M. Ghias
Josep M. Guerrero
author_sort Jinghang Lu
title A Reduced-Order Enhanced State Observer Control of DC-DC Buck Converter
title_short A Reduced-Order Enhanced State Observer Control of DC-DC Buck Converter
title_full A Reduced-Order Enhanced State Observer Control of DC-DC Buck Converter
title_fullStr A Reduced-Order Enhanced State Observer Control of DC-DC Buck Converter
title_full_unstemmed A Reduced-Order Enhanced State Observer Control of DC-DC Buck Converter
title_sort reduced-order enhanced state observer control of dc-dc buck converter
publisher IEEE
series IEEE Access
issn 2169-3536
publishDate 2018-01-01
description This paper presents a reduced-order-enhanced state observer (RESO)-based control strategy for the PWM dc-dc buck converter. With the proposed RESO control strategy, the output voltage regulation of the dc-dc buck converter is able to achieve robust characteristics against the external disturbance and the internal parameter variation even without output current measurement. In addition, by incorporating the RESO in the controller, the output voltage regulation can be easily achieved with only a proportional gain to realize a zero steady-state error. Finally, the parameter design is discussed and the effectiveness of the proposed control strategy is verified with an experimental case study.
topic DC-DC buck converter
disturbance rejection
reduced-order enhanced state observer
robustness
system parameter variation
url https://ieeexplore.ieee.org/document/8472209/
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