DC microgrid dynamic performance assessment and enhancement based on virtual impedance method

Dong Chen; Lie Xu

DC microgrid dynamic performance assessment and enhancement based on virtual impedance method

Dong Chen, Lie Xu

Electronic And Electrical Engineering

Research output: Contribution to conference › Paper › peer-review

2 Citations (Scopus)

126 Downloads (Pure)

Abstract

A dynamic performance assessment method is proposed for DC microgrids. With the control scheme modeled as virtual impedance, an actively controlled slack converter
terminal of a DC network can be modeled as a circuit branch in S-domain. Using Thevenin's equivalent, transfer functions of a DC microgrid are then deduced. A control scheme is proposed to enhance the dynamics of a DC system with multiple slack terminals. A case study of a multi-terminal DC microgrid is performed to analyze and enhance its dynamics. Time domain simulation and experiments are carried out to validate the proposed analytical and enhancement method.

Original language	English
Number of pages	7
Publication status	Published - 31 Oct 2014
Event	40th Annual Conference of the IEEE Industrial Electronics Society (IECON'2014) - Dallas, United States Duration: 29 Oct 2014 → 1 Nov 2014

Conference

Conference	40th Annual Conference of the IEEE Industrial Electronics Society (IECON'2014)
Country/Territory	United States
City	Dallas
Period	29/10/14 → 1/11/14

Keywords

DC microgrid
dynamic performance assessment
virtual impedance
renewable power
renewable energy

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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Chen-Xu-IECON2014-dc-microgrid-dynamic-performance-assessmentAccepted author manuscript, 1.91 MB

Cite this

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title = "DC microgrid dynamic performance assessment and enhancement based on virtual impedance method",

abstract = "A dynamic performance assessment method is proposed for DC microgrids. With the control scheme modeled as virtual impedance, an actively controlled slack converter terminal of a DC network can be modeled as a circuit branch in S-domain. Using Thevenin's equivalent, transfer functions of a DC microgrid are then deduced. A control scheme is proposed to enhance the dynamics of a DC system with multiple slack terminals. A case study of a multi-terminal DC microgrid is performed to analyze and enhance its dynamics. Time domain simulation and experiments are carried out to validate the proposed analytical and enhancement method.",

keywords = "DC microgrid, dynamic performance assessment, virtual impedance, renewable power, renewable energy",

author = "Dong Chen and Lie Xu",

note = "(c) 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.; 40th Annual Conference of the IEEE Industrial Electronics Society (IECON'2014) ; Conference date: 29-10-2014 Through 01-11-2014",

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T1 - DC microgrid dynamic performance assessment and enhancement based on virtual impedance method

AU - Chen, Dong

AU - Xu, Lie

N1 - (c) 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.

PY - 2014/10/31

Y1 - 2014/10/31

N2 - A dynamic performance assessment method is proposed for DC microgrids. With the control scheme modeled as virtual impedance, an actively controlled slack converter terminal of a DC network can be modeled as a circuit branch in S-domain. Using Thevenin's equivalent, transfer functions of a DC microgrid are then deduced. A control scheme is proposed to enhance the dynamics of a DC system with multiple slack terminals. A case study of a multi-terminal DC microgrid is performed to analyze and enhance its dynamics. Time domain simulation and experiments are carried out to validate the proposed analytical and enhancement method.

AB - A dynamic performance assessment method is proposed for DC microgrids. With the control scheme modeled as virtual impedance, an actively controlled slack converter terminal of a DC network can be modeled as a circuit branch in S-domain. Using Thevenin's equivalent, transfer functions of a DC microgrid are then deduced. A control scheme is proposed to enhance the dynamics of a DC system with multiple slack terminals. A case study of a multi-terminal DC microgrid is performed to analyze and enhance its dynamics. Time domain simulation and experiments are carried out to validate the proposed analytical and enhancement method.

KW - DC microgrid

KW - dynamic performance assessment

KW - virtual impedance

KW - renewable power

KW - renewable energy

UR - http://iecon2014.org/index.php/component/content/article/2-uncategorised/59-program-copy

M3 - Paper

T2 - 40th Annual Conference of the IEEE Industrial Electronics Society (IECON'2014)

Y2 - 29 October 2014 through 1 November 2014

ER -

DC microgrid dynamic performance assessment and enhancement based on virtual impedance method

Abstract

Conference

Keywords

UN SDGs

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