Transient Modeling and Analysis of VSC Based DC Microgrid During Short Circuit Fault

The application of distributed renewable energy (DER) drives the development of DC microgrid based on voltage source converter (VSC). And short circuit fault protection is a significant challenge for the development of VSC based DC microgrid. This paper proposes a transient modeling method for VSC b...

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Main Authors: Heng Nian, Liang Kong
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8911374/
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author Heng Nian
Liang Kong
author_facet Heng Nian
Liang Kong
author_sort Heng Nian
collection DOAJ
description The application of distributed renewable energy (DER) drives the development of DC microgrid based on voltage source converter (VSC). And short circuit fault protection is a significant challenge for the development of VSC based DC microgrid. This paper proposes a transient modeling method for VSC based DC microgrid. Firstly, the transient characteristics of VSC under DC bus voltage control mode and active power control mode are analyzed. And then the faulty DC microgrid model, which consists of VSC model and DC line model, is modeled. And the calculation expressions of state variables in DC microgrid are presented. Next, the correctness of proposed modeling approach is verified by comparing with the electromagnetic transient (EMT) simulation by Matlab/Simulink. Moreover, the case study on the parameters configuration of DC microgrid protection devices shows that the transient modeling method can be effectively used in faulty DC microgrid analysis. The method proposed in this paper can not only ensure the calculation efficiency, but also improve the accuracy of DC microgrid analysis on fault.
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spelling doaj.art-06f277d1d0424c1083aafbb2f95286a72022-12-21T17:25:52ZengIEEEIEEE Access2169-35362019-01-01717060417061410.1109/ACCESS.2019.29553798911374Transient Modeling and Analysis of VSC Based DC Microgrid During Short Circuit FaultHeng Nian0https://orcid.org/0000-0003-4816-084XLiang Kong1https://orcid.org/0000-0002-1186-6251College of Electrical Engineering, Zhejiang University, Hangzhou, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou, ChinaThe application of distributed renewable energy (DER) drives the development of DC microgrid based on voltage source converter (VSC). And short circuit fault protection is a significant challenge for the development of VSC based DC microgrid. This paper proposes a transient modeling method for VSC based DC microgrid. Firstly, the transient characteristics of VSC under DC bus voltage control mode and active power control mode are analyzed. And then the faulty DC microgrid model, which consists of VSC model and DC line model, is modeled. And the calculation expressions of state variables in DC microgrid are presented. Next, the correctness of proposed modeling approach is verified by comparing with the electromagnetic transient (EMT) simulation by Matlab/Simulink. Moreover, the case study on the parameters configuration of DC microgrid protection devices shows that the transient modeling method can be effectively used in faulty DC microgrid analysis. The method proposed in this paper can not only ensure the calculation efficiency, but also improve the accuracy of DC microgrid analysis on fault.https://ieeexplore.ieee.org/document/8911374/DC microgriddc faultvoltage source converter (VSC)dc bus voltage control modeactive power control mode
spellingShingle Heng Nian
Liang Kong
Transient Modeling and Analysis of VSC Based DC Microgrid During Short Circuit Fault
IEEE Access
DC microgrid
dc fault
voltage source converter (VSC)
dc bus voltage control mode
active power control mode
title Transient Modeling and Analysis of VSC Based DC Microgrid During Short Circuit Fault
title_full Transient Modeling and Analysis of VSC Based DC Microgrid During Short Circuit Fault
title_fullStr Transient Modeling and Analysis of VSC Based DC Microgrid During Short Circuit Fault
title_full_unstemmed Transient Modeling and Analysis of VSC Based DC Microgrid During Short Circuit Fault
title_short Transient Modeling and Analysis of VSC Based DC Microgrid During Short Circuit Fault
title_sort transient modeling and analysis of vsc based dc microgrid during short circuit fault
topic DC microgrid
dc fault
voltage source converter (VSC)
dc bus voltage control mode
active power control mode
url https://ieeexplore.ieee.org/document/8911374/
work_keys_str_mv AT hengnian transientmodelingandanalysisofvscbaseddcmicrogridduringshortcircuitfault
AT liangkong transientmodelingandanalysisofvscbaseddcmicrogridduringshortcircuitfault