Stability analysis for S3R-architecture Power Conditioning Units interconnection system using impedance-based methods

Power Conditioning Unit (PCU) interconnection system solves the problem of insufficient power supply capacity of a single PCU. However, due to the complexity of the system control strategy, it is necessary to analyze the stability of the system. Based on the impedance-based method, this paper first...

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Main Authors: Yinghua Dou, Tao Liu, Aiwei Yang, Baolei Dong
Format: Article
Language:English
Published: Elsevier 2022-11-01
Series:Energy Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2352484722015578
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author Yinghua Dou
Tao Liu
Aiwei Yang
Baolei Dong
author_facet Yinghua Dou
Tao Liu
Aiwei Yang
Baolei Dong
author_sort Yinghua Dou
collection DOAJ
description Power Conditioning Unit (PCU) interconnection system solves the problem of insufficient power supply capacity of a single PCU. However, due to the complexity of the system control strategy, it is necessary to analyze the stability of the system. Based on the impedance-based method, this paper first establishes the small-signal model of the grid-connected controller (GCC) and then uses the impedance-based method to obtain the transfer function of the PCU subsystem. The stability of the PCU interconnected system composed of three PCUs is analyzed under specific working conditions. Finally, simulation and experiments verify the correctness of the analysis.
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spelling doaj.art-4fd774ac8f0b4ea5841c5979d24fa7912023-02-22T04:31:24ZengElsevierEnergy Reports2352-48472022-11-018582591Stability analysis for S3R-architecture Power Conditioning Units interconnection system using impedance-based methodsYinghua Dou0Tao Liu1Aiwei Yang2Baolei Dong3Corresponding author.; State Key Laboratory of Space Power-Sources Technology, Shanghai Institute of Space Power Sources, Shanghai 200240, ChinaState Key Laboratory of Space Power-Sources Technology, Shanghai Institute of Space Power Sources, Shanghai 200240, ChinaState Key Laboratory of Space Power-Sources Technology, Shanghai Institute of Space Power Sources, Shanghai 200240, ChinaState Key Laboratory of Space Power-Sources Technology, Shanghai Institute of Space Power Sources, Shanghai 200240, ChinaPower Conditioning Unit (PCU) interconnection system solves the problem of insufficient power supply capacity of a single PCU. However, due to the complexity of the system control strategy, it is necessary to analyze the stability of the system. Based on the impedance-based method, this paper first establishes the small-signal model of the grid-connected controller (GCC) and then uses the impedance-based method to obtain the transfer function of the PCU subsystem. The stability of the PCU interconnected system composed of three PCUs is analyzed under specific working conditions. Finally, simulation and experiments verify the correctness of the analysis.http://www.sciencedirect.com/science/article/pii/S2352484722015578PCU interconnection systemGrid-connected controller (GCC)Stability analysisImpedance-based method
spellingShingle Yinghua Dou
Tao Liu
Aiwei Yang
Baolei Dong
Stability analysis for S3R-architecture Power Conditioning Units interconnection system using impedance-based methods
Energy Reports
PCU interconnection system
Grid-connected controller (GCC)
Stability analysis
Impedance-based method
title Stability analysis for S3R-architecture Power Conditioning Units interconnection system using impedance-based methods
title_full Stability analysis for S3R-architecture Power Conditioning Units interconnection system using impedance-based methods
title_fullStr Stability analysis for S3R-architecture Power Conditioning Units interconnection system using impedance-based methods
title_full_unstemmed Stability analysis for S3R-architecture Power Conditioning Units interconnection system using impedance-based methods
title_short Stability analysis for S3R-architecture Power Conditioning Units interconnection system using impedance-based methods
title_sort stability analysis for s3r architecture power conditioning units interconnection system using impedance based methods
topic PCU interconnection system
Grid-connected controller (GCC)
Stability analysis
Impedance-based method
url http://www.sciencedirect.com/science/article/pii/S2352484722015578
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AT taoliu stabilityanalysisfors3rarchitecturepowerconditioningunitsinterconnectionsystemusingimpedancebasedmethods
AT aiweiyang stabilityanalysisfors3rarchitecturepowerconditioningunitsinterconnectionsystemusingimpedancebasedmethods
AT baoleidong stabilityanalysisfors3rarchitecturepowerconditioningunitsinterconnectionsystemusingimpedancebasedmethods