Low-frequency oscillation analysis of AC/DC system with offshore wind farm integration via MMC-based HVDC
In recent years, the low-frequency oscillation (LFO) problem has become increasingly significant with rapid increase in the size of AC/DC interconnected power system containing large-scale wind power. This article aims to conduct the LFO analysis when an offshore wind farm is integrated into the AC...
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Wiley
2019-04-01
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Series: | The Journal of Engineering |
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Online Access: | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8534 |
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author | Zhongrui Nie Libao Shi Yue Zhao Yixin Ni |
author_facet | Zhongrui Nie Libao Shi Yue Zhao Yixin Ni |
author_sort | Zhongrui Nie |
collection | DOAJ |
description | In recent years, the low-frequency oscillation (LFO) problem has become increasingly significant with rapid increase in the size of AC/DC interconnected power system containing large-scale wind power. This article aims to conduct the LFO analysis when an offshore wind farm is integrated into the AC power system through module multilevel converter (MMC)-based high-voltage direct current (HVDC). First, the basic mathematical models including the MMC with detailed control strategy and the permanent magnet synchronous generator (PMSG) are described. The eigenvalue analysis is then applied to conduct the LFO study. An interconnected AC/DC test system with a wind farm connected though the MMC-based HVDC transmission line is designed as benchmark. To validate the analysis results, the detailed simulation models built under the PSCAD/EMTDC^TM environment together with the Prony analysis are carried out. Different simulation scenarios involving the changes of point of common coupling (PCC), wind speed, length of transmission line, and wind penetration level are elaborately studied. Some meaningful conclusions are drawn to provide basic foundation for the future design of damping controller to mitigate LFO. |
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format | Article |
id | doaj.art-1b46401ea3c449c5a9789e308233ce57 |
institution | Directory Open Access Journal |
issn | 2051-3305 |
language | English |
last_indexed | 2024-12-14T12:21:37Z |
publishDate | 2019-04-01 |
publisher | Wiley |
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series | The Journal of Engineering |
spelling | doaj.art-1b46401ea3c449c5a9789e308233ce572022-12-21T23:01:28ZengWileyThe Journal of Engineering2051-33052019-04-0110.1049/joe.2018.8534JOE.2018.8534Low-frequency oscillation analysis of AC/DC system with offshore wind farm integration via MMC-based HVDCZhongrui Nie0Libao Shi1Yue Zhao2Yixin Ni3National Key Laboratory of Power Systems in Shenzhen (Graduate School at Shenzhen, Tsinghua University)National Key Laboratory of Power Systems in Shenzhen (Graduate School at Shenzhen, Tsinghua University)National Key Laboratory of Power Systems in Shenzhen (Graduate School at Shenzhen, Tsinghua University)National Key Laboratory of Power Systems in Shenzhen (Graduate School at Shenzhen, Tsinghua University)In recent years, the low-frequency oscillation (LFO) problem has become increasingly significant with rapid increase in the size of AC/DC interconnected power system containing large-scale wind power. This article aims to conduct the LFO analysis when an offshore wind farm is integrated into the AC power system through module multilevel converter (MMC)-based high-voltage direct current (HVDC). First, the basic mathematical models including the MMC with detailed control strategy and the permanent magnet synchronous generator (PMSG) are described. The eigenvalue analysis is then applied to conduct the LFO study. An interconnected AC/DC test system with a wind farm connected though the MMC-based HVDC transmission line is designed as benchmark. To validate the analysis results, the detailed simulation models built under the PSCAD/EMTDC^TM environment together with the Prony analysis are carried out. Different simulation scenarios involving the changes of point of common coupling (PCC), wind speed, length of transmission line, and wind penetration level are elaborately studied. Some meaningful conclusions are drawn to provide basic foundation for the future design of damping controller to mitigate LFO.https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8534oscillationssynchronous generatorsHVDC power convertorswind power plantspermanent magnet generatorseigenvalues and eigenfunctionsoffshore installationsAC-DC power convertorsvoltage-source convertorsmodule multilevel converter-based high-voltagepermanent magnet synchronous generatoreigenvalue analysisLFO studyinterconnected AC/DC test systemMMC-based HVDC transmission lineProny analysiswind penetration levellow-frequency oscillation analysisAC/DC systemoffshore wind farm integrationlow-frequency oscillation problemlarge-scale wind powerLFO analysisAC power system |
spellingShingle | Zhongrui Nie Libao Shi Yue Zhao Yixin Ni Low-frequency oscillation analysis of AC/DC system with offshore wind farm integration via MMC-based HVDC The Journal of Engineering oscillations synchronous generators HVDC power convertors wind power plants permanent magnet generators eigenvalues and eigenfunctions offshore installations AC-DC power convertors voltage-source convertors module multilevel converter-based high-voltage permanent magnet synchronous generator eigenvalue analysis LFO study interconnected AC/DC test system MMC-based HVDC transmission line Prony analysis wind penetration level low-frequency oscillation analysis AC/DC system offshore wind farm integration low-frequency oscillation problem large-scale wind power LFO analysis AC power system |
title | Low-frequency oscillation analysis of AC/DC system with offshore wind farm integration via MMC-based HVDC |
title_full | Low-frequency oscillation analysis of AC/DC system with offshore wind farm integration via MMC-based HVDC |
title_fullStr | Low-frequency oscillation analysis of AC/DC system with offshore wind farm integration via MMC-based HVDC |
title_full_unstemmed | Low-frequency oscillation analysis of AC/DC system with offshore wind farm integration via MMC-based HVDC |
title_short | Low-frequency oscillation analysis of AC/DC system with offshore wind farm integration via MMC-based HVDC |
title_sort | low frequency oscillation analysis of ac dc system with offshore wind farm integration via mmc based hvdc |
topic | oscillations synchronous generators HVDC power convertors wind power plants permanent magnet generators eigenvalues and eigenfunctions offshore installations AC-DC power convertors voltage-source convertors module multilevel converter-based high-voltage permanent magnet synchronous generator eigenvalue analysis LFO study interconnected AC/DC test system MMC-based HVDC transmission line Prony analysis wind penetration level low-frequency oscillation analysis AC/DC system offshore wind farm integration low-frequency oscillation problem large-scale wind power LFO analysis AC power system |
url | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8534 |
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