An Extended Stability Analysis Method for Paralleled DC-DC Converters System With Considering the Periodic Disturbance Based on Floquet Theory

Paralleled DC-DC converters system normally is operated with current-sharing control to achieve equal current distribution among the converters connected in parallel. However, the added current-sharing control might make the paralleled DC-DC converters system suffer from potential degradation of sta...

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Main Authors: Hong Li, Fang Ren, Chen Liu, Zhongya Guo, Jinhu Lu, Bo Zhang, Trillion Q. Zheng
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8936063/
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author Hong Li
Fang Ren
Chen Liu
Zhongya Guo
Jinhu Lu
Bo Zhang
Trillion Q. Zheng
author_facet Hong Li
Fang Ren
Chen Liu
Zhongya Guo
Jinhu Lu
Bo Zhang
Trillion Q. Zheng
author_sort Hong Li
collection DOAJ
description Paralleled DC-DC converters system normally is operated with current-sharing control to achieve equal current distribution among the converters connected in parallel. However, the added current-sharing control might make the paralleled DC-DC converters system suffer from potential degradation of stability and dynamic performances. Hence, the stability analysis of paralleled DC-DC converters system is a hot issue. In order to analyze the stability of paralleled DC-DC converters system accurately and effectively, an extended stability analysis method based on Floquet theory is proposed for paralleled DC-DC converters system in this paper with considering the periodic disturbance. And, a paralleled buck converters system with average current-mode control is taken as an analysis object. The extended stability criterion of paralleled buck converters system based on Floquet theory is derived. Finally, the simulation and experimental results verify the correctness and effectiveness of the proposed stability criterion with considering the periodic disturbance. This paper provides a new choice for the stability analysis of paralleled DC-DC converters system.
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spelling doaj.art-d325ea6f0bf443208151ee2fc1a1f6752022-12-21T23:45:04ZengIEEEIEEE Access2169-35362020-01-0189023903610.1109/ACCESS.2019.29605358936063An Extended Stability Analysis Method for Paralleled DC-DC Converters System With Considering the Periodic Disturbance Based on Floquet TheoryHong Li0https://orcid.org/0000-0002-8117-8980Fang Ren1https://orcid.org/0000-0002-3989-262XChen Liu2https://orcid.org/0000-0002-3750-0581Zhongya Guo3https://orcid.org/0000-0001-7718-9516Jinhu Lu4https://orcid.org/0000-0003-0275-8387Bo Zhang5https://orcid.org/0000-0001-6241-7440Trillion Q. Zheng6https://orcid.org/0000-0002-2494-8440School of Electrical Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Electrical Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Electrical Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Electrical Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Automation Science and Electrical Engineering, Beihang University, Beijing, ChinaSchool of Electric Power, South China University of Technology, Guangzhou, ChinaSchool of Electrical Engineering, Beijing Jiaotong University, Beijing, ChinaParalleled DC-DC converters system normally is operated with current-sharing control to achieve equal current distribution among the converters connected in parallel. However, the added current-sharing control might make the paralleled DC-DC converters system suffer from potential degradation of stability and dynamic performances. Hence, the stability analysis of paralleled DC-DC converters system is a hot issue. In order to analyze the stability of paralleled DC-DC converters system accurately and effectively, an extended stability analysis method based on Floquet theory is proposed for paralleled DC-DC converters system in this paper with considering the periodic disturbance. And, a paralleled buck converters system with average current-mode control is taken as an analysis object. The extended stability criterion of paralleled buck converters system based on Floquet theory is derived. Finally, the simulation and experimental results verify the correctness and effectiveness of the proposed stability criterion with considering the periodic disturbance. This paper provides a new choice for the stability analysis of paralleled DC-DC converters system.https://ieeexplore.ieee.org/document/8936063/Paralleled DC-DC convertertime domain modelFloquet theorystability analysis
spellingShingle Hong Li
Fang Ren
Chen Liu
Zhongya Guo
Jinhu Lu
Bo Zhang
Trillion Q. Zheng
An Extended Stability Analysis Method for Paralleled DC-DC Converters System With Considering the Periodic Disturbance Based on Floquet Theory
IEEE Access
Paralleled DC-DC converter
time domain model
Floquet theory
stability analysis
title An Extended Stability Analysis Method for Paralleled DC-DC Converters System With Considering the Periodic Disturbance Based on Floquet Theory
title_full An Extended Stability Analysis Method for Paralleled DC-DC Converters System With Considering the Periodic Disturbance Based on Floquet Theory
title_fullStr An Extended Stability Analysis Method for Paralleled DC-DC Converters System With Considering the Periodic Disturbance Based on Floquet Theory
title_full_unstemmed An Extended Stability Analysis Method for Paralleled DC-DC Converters System With Considering the Periodic Disturbance Based on Floquet Theory
title_short An Extended Stability Analysis Method for Paralleled DC-DC Converters System With Considering the Periodic Disturbance Based on Floquet Theory
title_sort extended stability analysis method for paralleled dc dc converters system with considering the periodic disturbance based on floquet theory
topic Paralleled DC-DC converter
time domain model
Floquet theory
stability analysis
url https://ieeexplore.ieee.org/document/8936063/
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