Impact of frequency control from wind turbine generator linked to HVDC system on sub-synchronous oscillation

Dongyeong Lee; Sungwoo Kang; Junghun Lee; Gilsoo Jang

doi:10.1016/j.egyr.2023.05.077

Impact of frequency control from wind turbine generator linked to HVDC system on sub-synchronous oscillation

Dongyeong Lee, Sungwoo Kang, Junghun Lee, Gilsoo Jang

Research output: Contribution to journal › Article › peer-review

Abstract

With global trends of carbon neutrality, offshore wind energy is considered as the most promising resource. However, as large-scale renewable energy resources replace the existing synchronous generators (SG), concerns about the system stability are growing. Owing to the absence of system supports provided by the SG. Therefore, operators require the wind generators to participate in frequency control. In addition, controls have been devised to perform frequency support even when large-scale offshore wind farm (OWF) linked to High Voltage Direct Current (HVDC). However, this frequency support control's impacts on the overall system stability are not investigated in deeply yet. Therefore, in this study, the impacts of frequency control from OWF-linked HVDC system using communication-less scheme on the system instability were investigated using small-signal stability analysis. Its results revealed that this frequency support control caused instability. Modal analysis and simulations support these interpretations and improve the understanding its mechanism and dynamics.

Original language	English
Pages (from-to)	116-124
Number of pages	9
Journal	Energy Reports
Volume	9
DOIs	https://doi.org/10.1016/j.egyr.2023.05.077
Publication status	Published - 2023 Oct

Bibliographical note

Funding Information:
This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government (MOTIE) (No. 20210501010010 ) and supported by Korea Electric Power Corporation ( R20XO02-4 ).

Publisher Copyright:
© 2023 The Author(s)

Keywords

Frequency support control
Modal analysis
Small-signal stability
Sub-synchronous oscillation
Wind-linked HVDC system

ASJC Scopus subject areas

General Energy

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.egyr.2023.05.077

Cite this

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title = "Impact of frequency control from wind turbine generator linked to HVDC system on sub-synchronous oscillation",

abstract = "With global trends of carbon neutrality, offshore wind energy is considered as the most promising resource. However, as large-scale renewable energy resources replace the existing synchronous generators (SG), concerns about the system stability are growing. Owing to the absence of system supports provided by the SG. Therefore, operators require the wind generators to participate in frequency control. In addition, controls have been devised to perform frequency support even when large-scale offshore wind farm (OWF) linked to High Voltage Direct Current (HVDC). However, this frequency support control's impacts on the overall system stability are not investigated in deeply yet. Therefore, in this study, the impacts of frequency control from OWF-linked HVDC system using communication-less scheme on the system instability were investigated using small-signal stability analysis. Its results revealed that this frequency support control caused instability. Modal analysis and simulations support these interpretations and improve the understanding its mechanism and dynamics.",

keywords = "Frequency support control, Modal analysis, Small-signal stability, Sub-synchronous oscillation, Wind-linked HVDC system",

author = "Dongyeong Lee and Sungwoo Kang and Junghun Lee and Gilsoo Jang",

note = "Funding Information: This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government (MOTIE) (No. 20210501010010 ) and supported by Korea Electric Power Corporation ( R20XO02-4 ). Publisher Copyright: {\textcopyright} 2023 The Author(s)",

year = "2023",

month = oct,

doi = "10.1016/j.egyr.2023.05.077",

language = "English",

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AU - Lee, Dongyeong

AU - Kang, Sungwoo

AU - Lee, Junghun

AU - Jang, Gilsoo

N1 - Funding Information: This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government (MOTIE) (No. 20210501010010 ) and supported by Korea Electric Power Corporation ( R20XO02-4 ). Publisher Copyright: © 2023 The Author(s)

PY - 2023/10

Y1 - 2023/10

N2 - With global trends of carbon neutrality, offshore wind energy is considered as the most promising resource. However, as large-scale renewable energy resources replace the existing synchronous generators (SG), concerns about the system stability are growing. Owing to the absence of system supports provided by the SG. Therefore, operators require the wind generators to participate in frequency control. In addition, controls have been devised to perform frequency support even when large-scale offshore wind farm (OWF) linked to High Voltage Direct Current (HVDC). However, this frequency support control's impacts on the overall system stability are not investigated in deeply yet. Therefore, in this study, the impacts of frequency control from OWF-linked HVDC system using communication-less scheme on the system instability were investigated using small-signal stability analysis. Its results revealed that this frequency support control caused instability. Modal analysis and simulations support these interpretations and improve the understanding its mechanism and dynamics.

AB - With global trends of carbon neutrality, offshore wind energy is considered as the most promising resource. However, as large-scale renewable energy resources replace the existing synchronous generators (SG), concerns about the system stability are growing. Owing to the absence of system supports provided by the SG. Therefore, operators require the wind generators to participate in frequency control. In addition, controls have been devised to perform frequency support even when large-scale offshore wind farm (OWF) linked to High Voltage Direct Current (HVDC). However, this frequency support control's impacts on the overall system stability are not investigated in deeply yet. Therefore, in this study, the impacts of frequency control from OWF-linked HVDC system using communication-less scheme on the system instability were investigated using small-signal stability analysis. Its results revealed that this frequency support control caused instability. Modal analysis and simulations support these interpretations and improve the understanding its mechanism and dynamics.

KW - Frequency support control

KW - Modal analysis

KW - Small-signal stability

KW - Sub-synchronous oscillation

KW - Wind-linked HVDC system

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DO - 10.1016/j.egyr.2023.05.077

M3 - Article

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SN - 2352-4847

VL - 9

SP - 116

EP - 124

JO - Energy Reports

JF - Energy Reports

ER -

Impact of frequency control from wind turbine generator linked to HVDC system on sub-synchronous oscillation

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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