A Practical Short-Circuit Current Calculation Method for DFIG-Based Wind Farm Considering Voltage Distribution

This paper presents a calculation method of short-circuit current (SCC) for doubly fed induction generator (DFIG)-based wind farm considering the voltage distribution characteristics. When a short-circuit fault occurs in a wind farm, a large SCC will be contributed by the dozens or even hundreds of...

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Main Authors: Wenxia Pan, Mingyang Liu, Kun Zhao, Yibo Zhang, Tongchui Liu
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8662551/
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author Wenxia Pan
Mingyang Liu
Kun Zhao
Yibo Zhang
Tongchui Liu
author_facet Wenxia Pan
Mingyang Liu
Kun Zhao
Yibo Zhang
Tongchui Liu
author_sort Wenxia Pan
collection DOAJ
description This paper presents a calculation method of short-circuit current (SCC) for doubly fed induction generator (DFIG)-based wind farm considering the voltage distribution characteristics. When a short-circuit fault occurs in a wind farm, a large SCC will be contributed by the dozens or even hundreds of DFIGs in the wind farm. And the security and stability of the wind farm will be affected by the SCC. The SCC characteristics of the DFIG are closely related to its post-fault terminal voltage (PFTV). Therefore, a practical calculation model of SCC in single DFIG is proposed in this paper, based on the electromagnetic transient analysis. And according to a correction method of the topological matrix for a post-fault wind farm proposed in this paper, the relationship model between voltages and currents under short-circuit faults is established. Then, the PFTVs and SCCs of the DFIGs in the wind farm can be obtained by solving the model equation. Finally, the proposed method is validated through MATLAB/Simulink-based simulation results, and a comparison with the national standard calculation method is analyzed. The results show that this method has better accuracy, which provides a more accurate basis for the electrical safety design of wind farms.
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spelling doaj.art-bc3267689abb477db7d608d1e04d35cb2022-12-21T23:02:46ZengIEEEIEEE Access2169-35362019-01-017317743178110.1109/ACCESS.2019.29028488662551A Practical Short-Circuit Current Calculation Method for DFIG-Based Wind Farm Considering Voltage DistributionWenxia Pan0Mingyang Liu1https://orcid.org/0000-0002-7442-1321Kun Zhao2Yibo Zhang3Tongchui Liu4https://orcid.org/0000-0001-6711-9709College of Energy and Electrical Engineering, Hohai University, Nanjing, ChinaCollege of Energy and Electrical Engineering, Hohai University, Nanjing, ChinaCollege of Energy and Electrical Engineering, Hohai University, Nanjing, ChinaState Grid Henan Electric Power Corporation Maintenance Company, Zhengzhou, ChinaCollege of Energy and Electrical Engineering, Hohai University, Nanjing, ChinaThis paper presents a calculation method of short-circuit current (SCC) for doubly fed induction generator (DFIG)-based wind farm considering the voltage distribution characteristics. When a short-circuit fault occurs in a wind farm, a large SCC will be contributed by the dozens or even hundreds of DFIGs in the wind farm. And the security and stability of the wind farm will be affected by the SCC. The SCC characteristics of the DFIG are closely related to its post-fault terminal voltage (PFTV). Therefore, a practical calculation model of SCC in single DFIG is proposed in this paper, based on the electromagnetic transient analysis. And according to a correction method of the topological matrix for a post-fault wind farm proposed in this paper, the relationship model between voltages and currents under short-circuit faults is established. Then, the PFTVs and SCCs of the DFIGs in the wind farm can be obtained by solving the model equation. Finally, the proposed method is validated through MATLAB/Simulink-based simulation results, and a comparison with the national standard calculation method is analyzed. The results show that this method has better accuracy, which provides a more accurate basis for the electrical safety design of wind farms.https://ieeexplore.ieee.org/document/8662551/Wind farmdoubly-fed induction generator (DFIG)short-circuit currentvoltage distributionMATLAB/Simulink
spellingShingle Wenxia Pan
Mingyang Liu
Kun Zhao
Yibo Zhang
Tongchui Liu
A Practical Short-Circuit Current Calculation Method for DFIG-Based Wind Farm Considering Voltage Distribution
IEEE Access
Wind farm
doubly-fed induction generator (DFIG)
short-circuit current
voltage distribution
MATLAB/Simulink
title A Practical Short-Circuit Current Calculation Method for DFIG-Based Wind Farm Considering Voltage Distribution
title_full A Practical Short-Circuit Current Calculation Method for DFIG-Based Wind Farm Considering Voltage Distribution
title_fullStr A Practical Short-Circuit Current Calculation Method for DFIG-Based Wind Farm Considering Voltage Distribution
title_full_unstemmed A Practical Short-Circuit Current Calculation Method for DFIG-Based Wind Farm Considering Voltage Distribution
title_short A Practical Short-Circuit Current Calculation Method for DFIG-Based Wind Farm Considering Voltage Distribution
title_sort practical short circuit current calculation method for dfig based wind farm considering voltage distribution
topic Wind farm
doubly-fed induction generator (DFIG)
short-circuit current
voltage distribution
MATLAB/Simulink
url https://ieeexplore.ieee.org/document/8662551/
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