Cause, classification of voltage sag, and voltage sag emulators and applications : a comprehensive overview

The large-scale application of wind power and photovoltaic power solves the energy crisis and alleviates the environmental problems caused by the use of conventional energy. However, they are at risk of being randomly tripped from the network when faced to voltage sag and severe fault events, which...

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Main Authors: Han, Yang, Feng, Yu, Yang, Ping, Xu, Lin, Xu, Yan, Blaabjerg, Frede
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2021
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Online Access:https://hdl.handle.net/10356/145918
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Institution: Nanyang Technological University
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spelling sg-ntu-dr.10356-1459182021-01-14T05:45:19Z Cause, classification of voltage sag, and voltage sag emulators and applications : a comprehensive overview Han, Yang Feng, Yu Yang, Ping Xu, Lin Xu, Yan Blaabjerg, Frede School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Voltage Sag Generator Renewable Energy Systems The large-scale application of wind power and photovoltaic power solves the energy crisis and alleviates the environmental problems caused by the use of conventional energy. However, they are at risk of being randomly tripped from the network when faced to voltage sag and severe fault events, which will lead to a sudden reduction of active power output and also complicates fault recovery process of the whole system. Moreover, it may also aggravate failures and lead to large-scale power outages, which stimulates a growing interest in analyzing the low-voltage ride-through (LVRT) capabilities of the renewable energy systems (RES) and improving the performance through developing various mathematical models and analysis tools. In this paper, a systematical overview of cause, classification of voltage sag phenomena and voltage sag emulating techniques is presented, and four voltage sag generators (VSGs) are discussed and compared, which include generator based-VSG, shunt impedance based-VSG, transformer based-VSG and full converter based-VSG. Furthermore, a closed-loop detection platform based on real-time digital simulator (RTDS) for the converter controller of a permanent magnet synchronous generator (PWSG) set is introduced, to investigate the LVRT performance of the WT system under grid voltage sag conditions. Finally, the application of VSG in RES are presented and the future research directions are also discussed. Published version 2021-01-14T05:45:19Z 2021-01-14T05:45:19Z 2019 Journal Article Han, Y., Feng, Y., Yang, P., Xu, L., Xu, Y. & Blaabjerg, F. (2020). Cause, classification of voltage sag, and voltage sag emulators and applications : a comprehensive overview. IEEE Access, 8, 1922-1934. doi:10.1109/ACCESS.2019.2958965 2169-3536 0000-0003-0786-6731 #NODATA# 0000-0001-5256-026X 0000-0001-5867-6423 0000-0002-0503-183X 0000-0001-8311-7412 https://hdl.handle.net/10356/145918 10.1109/ACCESS.2019.2958965 2-s2.0-85078102656 8 1922 1934 en IEEE Access © 2020 IEEE. This journal is 100% open access, which means that all content is freely available without charge to users or their institutions. All articles accepted after 12 June 2019 are published under a CC BY 4.0 license, and the author retains copyright. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, as long as proper attribution is given. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Electrical and electronic engineering
Voltage Sag Generator
Renewable Energy Systems
spellingShingle Engineering::Electrical and electronic engineering
Voltage Sag Generator
Renewable Energy Systems
Han, Yang
Feng, Yu
Yang, Ping
Xu, Lin
Xu, Yan
Blaabjerg, Frede
Cause, classification of voltage sag, and voltage sag emulators and applications : a comprehensive overview
description The large-scale application of wind power and photovoltaic power solves the energy crisis and alleviates the environmental problems caused by the use of conventional energy. However, they are at risk of being randomly tripped from the network when faced to voltage sag and severe fault events, which will lead to a sudden reduction of active power output and also complicates fault recovery process of the whole system. Moreover, it may also aggravate failures and lead to large-scale power outages, which stimulates a growing interest in analyzing the low-voltage ride-through (LVRT) capabilities of the renewable energy systems (RES) and improving the performance through developing various mathematical models and analysis tools. In this paper, a systematical overview of cause, classification of voltage sag phenomena and voltage sag emulating techniques is presented, and four voltage sag generators (VSGs) are discussed and compared, which include generator based-VSG, shunt impedance based-VSG, transformer based-VSG and full converter based-VSG. Furthermore, a closed-loop detection platform based on real-time digital simulator (RTDS) for the converter controller of a permanent magnet synchronous generator (PWSG) set is introduced, to investigate the LVRT performance of the WT system under grid voltage sag conditions. Finally, the application of VSG in RES are presented and the future research directions are also discussed.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Han, Yang
Feng, Yu
Yang, Ping
Xu, Lin
Xu, Yan
Blaabjerg, Frede
format Article
author Han, Yang
Feng, Yu
Yang, Ping
Xu, Lin
Xu, Yan
Blaabjerg, Frede
author_sort Han, Yang
title Cause, classification of voltage sag, and voltage sag emulators and applications : a comprehensive overview
title_short Cause, classification of voltage sag, and voltage sag emulators and applications : a comprehensive overview
title_full Cause, classification of voltage sag, and voltage sag emulators and applications : a comprehensive overview
title_fullStr Cause, classification of voltage sag, and voltage sag emulators and applications : a comprehensive overview
title_full_unstemmed Cause, classification of voltage sag, and voltage sag emulators and applications : a comprehensive overview
title_sort cause, classification of voltage sag, and voltage sag emulators and applications : a comprehensive overview
publishDate 2021
url https://hdl.handle.net/10356/145918
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