Recurrence of Sub-Synchronous Oscillation Accident of Hornsea Wind Farm in UK and Its Suppression Strategy

A large-scale power system breakdown in the United Kingdom caused blackouts in several important cities, losing about 3.2 percent of the load and affecting nearly 1 million power users on 9 August 2019. On the basis of the accident investigation report provided by the UK National Grid, the specific...

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Autores principales:	Xiangwu Yan, Wenfei Chang, Sen Cui, Aazim Rassol, Jiaoxin Jia, Ying Sun
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	sub-synchronous oscillations Hornsea wind farm grid-side converter asymmetric fault positive sequence voltage Technology T
Acceso en línea:	https://doaj.org/article/0974a8eec1ce47569968bc1a5f627d0d
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spelling	oai:doaj.org-article:0974a8eec1ce47569968bc1a5f627d0d2021-11-25T17:27:53ZRecurrence of Sub-Synchronous Oscillation Accident of Hornsea Wind Farm in UK and Its Suppression Strategy10.3390/en142276851996-1073https://doaj.org/article/0974a8eec1ce47569968bc1a5f627d0d2021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/22/7685https://doaj.org/toc/1996-1073A large-scale power system breakdown in the United Kingdom caused blackouts in several important cities, losing about 3.2 percent of the load and affecting nearly 1 million power users on 9 August 2019. On the basis of the accident investigation report provided by the UK National Grid, the specific reasons for the sub-synchronous oscillation of Hornsea wind farm were analyzed. The Hornsea wind power system model was established by MATLAB simulation software to reproduce the accident. To solve this problem, based on the positive and negative sequence decomposition, the control strategy of grid-side converter of doubly-fed induction generator is improved to control the positive sequence voltage of the generator terminal, which can quickly recover the voltage by compensating the reactive power at the grid side. Consequently, the influence of the fault is weakened on the Hornsea wind farm system, and the sub-synchronous oscillation of the system is suppressed. The simulation results verify the effectiveness of the proposed control strategy in suppressing the sub-synchronous oscillation of weak AC wind power system after being applied to doubly-fed induction generator, which serves as a reference for studying similar problems of offshore wind power.Xiangwu YanWenfei ChangSen CuiAazim RassolJiaoxin JiaYing SunMDPI AGarticlesub-synchronous oscillationsHornsea wind farmgrid-side converterasymmetric faultpositive sequence voltageTechnologyTENEnergies, Vol 14, Iss 7685, p 7685 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	sub-synchronous oscillations Hornsea wind farm grid-side converter asymmetric fault positive sequence voltage Technology T
spellingShingle	sub-synchronous oscillations Hornsea wind farm grid-side converter asymmetric fault positive sequence voltage Technology T Xiangwu Yan Wenfei Chang Sen Cui Aazim Rassol Jiaoxin Jia Ying Sun Recurrence of Sub-Synchronous Oscillation Accident of Hornsea Wind Farm in UK and Its Suppression Strategy
description	A large-scale power system breakdown in the United Kingdom caused blackouts in several important cities, losing about 3.2 percent of the load and affecting nearly 1 million power users on 9 August 2019. On the basis of the accident investigation report provided by the UK National Grid, the specific reasons for the sub-synchronous oscillation of Hornsea wind farm were analyzed. The Hornsea wind power system model was established by MATLAB simulation software to reproduce the accident. To solve this problem, based on the positive and negative sequence decomposition, the control strategy of grid-side converter of doubly-fed induction generator is improved to control the positive sequence voltage of the generator terminal, which can quickly recover the voltage by compensating the reactive power at the grid side. Consequently, the influence of the fault is weakened on the Hornsea wind farm system, and the sub-synchronous oscillation of the system is suppressed. The simulation results verify the effectiveness of the proposed control strategy in suppressing the sub-synchronous oscillation of weak AC wind power system after being applied to doubly-fed induction generator, which serves as a reference for studying similar problems of offshore wind power.
format	article
author	Xiangwu Yan Wenfei Chang Sen Cui Aazim Rassol Jiaoxin Jia Ying Sun
author_facet	Xiangwu Yan Wenfei Chang Sen Cui Aazim Rassol Jiaoxin Jia Ying Sun
author_sort	Xiangwu Yan
title	Recurrence of Sub-Synchronous Oscillation Accident of Hornsea Wind Farm in UK and Its Suppression Strategy
title_short	Recurrence of Sub-Synchronous Oscillation Accident of Hornsea Wind Farm in UK and Its Suppression Strategy
title_full	Recurrence of Sub-Synchronous Oscillation Accident of Hornsea Wind Farm in UK and Its Suppression Strategy
title_fullStr	Recurrence of Sub-Synchronous Oscillation Accident of Hornsea Wind Farm in UK and Its Suppression Strategy
title_full_unstemmed	Recurrence of Sub-Synchronous Oscillation Accident of Hornsea Wind Farm in UK and Its Suppression Strategy
title_sort	recurrence of sub-synchronous oscillation accident of hornsea wind farm in uk and its suppression strategy
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/0974a8eec1ce47569968bc1a5f627d0d
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Recurrence of Sub-Synchronous Oscillation Accident of Hornsea Wind Farm in UK and Its Suppression Strategy

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