On wind turbine's loss of synchronisation during severe faults

Amir Arasteh; Nicolaos A. Cutululis

doi:10.1002/we.2739

On wind turbine's loss of synchronisation during severe faults

Amir Arasteh^*, Nicolaos A. Cutululis

^*Corresponding author for this work

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Abstract

Grid codes mandate that wind turbines (WTs) remain connected even during severe faults. This requirement can lead to WTs' loss of synchronisation (LoS) with the AC grid under severe symmetrical faults. In this paper, the LoS is illustrated by the power balance principle. Then, a solution with improved performance for avoiding LoS during severe faults is proposed, implemented and verified by simulations. The results show that the solution eliminates the steady-state frequency deviation during faults, resulting in a smoother WT transient during and post-fault.

Original language	English
Journal	Wind Energy
Volume	25
Issue number	8
Pages (from-to)	1485-1490
Number of pages	6
ISSN	1095-4244
DOIs	https://doi.org/10.1002/we.2739
Publication status	Published - 2022

Keywords

Grid following converters
Loss of synchronisation
PLL instability
Severe symmetrical faults

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title = "On wind turbine's loss of synchronisation during severe faults",

abstract = "Grid codes mandate that wind turbines (WTs) remain connected even during severe faults. This requirement can lead to WTs' loss of synchronisation (LoS) with the AC grid under severe symmetrical faults. In this paper, the LoS is illustrated by the power balance principle. Then, a solution with improved performance for avoiding LoS during severe faults is proposed, implemented and verified by simulations. The results show that the solution eliminates the steady-state frequency deviation during faults, resulting in a smoother WT transient during and post-fault.",

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AU - Arasteh, Amir

AU - Cutululis, Nicolaos A.

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AB - Grid codes mandate that wind turbines (WTs) remain connected even during severe faults. This requirement can lead to WTs' loss of synchronisation (LoS) with the AC grid under severe symmetrical faults. In this paper, the LoS is illustrated by the power balance principle. Then, a solution with improved performance for avoiding LoS during severe faults is proposed, implemented and verified by simulations. The results show that the solution eliminates the steady-state frequency deviation during faults, resulting in a smoother WT transient during and post-fault.

KW - Grid following converters

KW - Loss of synchronisation

KW - PLL instability

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U2 - 10.1002/we.2739

DO - 10.1002/we.2739

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On wind turbine's loss of synchronisation during severe faults

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Keywords

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