Stability analysis of grid-connected VSC based on impedance modelling

Liang Yuan; Ke Meng; Jingjie Huang; Yilun Sun; Zhao Y Dong

doi:10.1049/cp.2019.0475

Stability analysis of grid-connected VSC based on impedance modelling

Liang Yuan
, Ke Meng^*
, Jingjie Huang
, Yilun Sun
, Zhao Y Dong

^*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

1 Citation (Scopus)

Abstract

Recently, real field incidents have shown that permanent magnet synchronous generator (PMSG) based wind farm are prone to subsynchronous oscillation (SSO) issues when integrated into weak AC systems. The mechanism behind this subsynchronous interaction (SSI) is still unclear, and great concern has been aroused to the stability of grid-connected voltage-sourced converters (VSC) both in academia and industry. The main approaches to analysing the SSO issues include the frequency scan method, eigenvalue analysis method, time domain simulation and impedance modelling method. Depending on the domain that impedance model derived from, existing literature of impedance modelling can be classified into three categories, namely sequence domain impedance, dq domain impedance, and polar coordinates impedance. This paper focuses on the emerging impedance modelling and aims to provide a comprehensive understanding of different modelling method. Detailed derivation of these three impedance methods is presented. Through the stability analysis of VSC, the pros and cons of different methods are compared. Finally, A detailed VSC model is built in the RTDS to validate the results. © 2019 Institution of Engineering and Technology. All rights reserved.

Original language	English
Title of host publication	8th Renewable Power Generation Conference (RPG 2019)
Publisher	IEEE
ISBN (Electronic)	978-1-83953-124-8
ISBN (Print)	978-1-83953-125-5
DOIs	https://doi.org/10.1049/cp.2019.0475
Publication status	Published - Oct 2019
Externally published	Yes
Event	8th Renewable Power Generation Conference (RPG 2019) - Shanghai, China Duration: 24 Oct 2019 → 25 Oct 2019

Conference

Conference	8th Renewable Power Generation Conference (RPG 2019)
Place	China
City	Shanghai
Period	24/10/19 → 25/10/19

UN SDGs

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

SDG 7 Affordable and Clean Energy

Research Keywords

Impedance Modelling
Small Signal Stability
Subsynchronous Oscillations
Voltage Source Conveter (VSC)

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@inproceedings{d33f9727d86c441d9fb2735ad48c838d,

title = "Stability analysis of grid-connected VSC based on impedance modelling",

abstract = "Recently, real field incidents have shown that permanent magnet synchronous generator (PMSG) based wind farm are prone to subsynchronous oscillation (SSO) issues when integrated into weak AC systems. The mechanism behind this subsynchronous interaction (SSI) is still unclear, and great concern has been aroused to the stability of grid-connected voltage-sourced converters (VSC) both in academia and industry. The main approaches to analysing the SSO issues include the frequency scan method, eigenvalue analysis method, time domain simulation and impedance modelling method. Depending on the domain that impedance model derived from, existing literature of impedance modelling can be classified into three categories, namely sequence domain impedance, dq domain impedance, and polar coordinates impedance. This paper focuses on the emerging impedance modelling and aims to provide a comprehensive understanding of different modelling method. Detailed derivation of these three impedance methods is presented. Through the stability analysis of VSC, the pros and cons of different methods are compared. Finally, A detailed VSC model is built in the RTDS to validate the results. {\textcopyright} 2019 Institution of Engineering and Technology. All rights reserved.",

keywords = "Impedance Modelling, Small Signal Stability, Subsynchronous Oscillations, Voltage Source Conveter (VSC)",

author = "Liang Yuan and Ke Meng and Jingjie Huang and Yilun Sun and Dong, \{Zhao Y\}",

year = "2019",

month = oct,

doi = "10.1049/cp.2019.0475",

language = "English",

isbn = "978-1-83953-125-5",

booktitle = "8th Renewable Power Generation Conference (RPG 2019)",

publisher = "IEEE",

address = "United States",

note = "8th Renewable Power Generation Conference (RPG 2019) ; Conference date: 24-10-2019 Through 25-10-2019",

}

TY - GEN

T1 - Stability analysis of grid-connected VSC based on impedance modelling

AU - Yuan, Liang

AU - Meng, Ke

AU - Huang, Jingjie

AU - Sun, Yilun

AU - Dong, Zhao Y

PY - 2019/10

Y1 - 2019/10

N2 - Recently, real field incidents have shown that permanent magnet synchronous generator (PMSG) based wind farm are prone to subsynchronous oscillation (SSO) issues when integrated into weak AC systems. The mechanism behind this subsynchronous interaction (SSI) is still unclear, and great concern has been aroused to the stability of grid-connected voltage-sourced converters (VSC) both in academia and industry. The main approaches to analysing the SSO issues include the frequency scan method, eigenvalue analysis method, time domain simulation and impedance modelling method. Depending on the domain that impedance model derived from, existing literature of impedance modelling can be classified into three categories, namely sequence domain impedance, dq domain impedance, and polar coordinates impedance. This paper focuses on the emerging impedance modelling and aims to provide a comprehensive understanding of different modelling method. Detailed derivation of these three impedance methods is presented. Through the stability analysis of VSC, the pros and cons of different methods are compared. Finally, A detailed VSC model is built in the RTDS to validate the results. © 2019 Institution of Engineering and Technology. All rights reserved.

AB - Recently, real field incidents have shown that permanent magnet synchronous generator (PMSG) based wind farm are prone to subsynchronous oscillation (SSO) issues when integrated into weak AC systems. The mechanism behind this subsynchronous interaction (SSI) is still unclear, and great concern has been aroused to the stability of grid-connected voltage-sourced converters (VSC) both in academia and industry. The main approaches to analysing the SSO issues include the frequency scan method, eigenvalue analysis method, time domain simulation and impedance modelling method. Depending on the domain that impedance model derived from, existing literature of impedance modelling can be classified into three categories, namely sequence domain impedance, dq domain impedance, and polar coordinates impedance. This paper focuses on the emerging impedance modelling and aims to provide a comprehensive understanding of different modelling method. Detailed derivation of these three impedance methods is presented. Through the stability analysis of VSC, the pros and cons of different methods are compared. Finally, A detailed VSC model is built in the RTDS to validate the results. © 2019 Institution of Engineering and Technology. All rights reserved.

KW - Impedance Modelling

KW - Small Signal Stability

KW - Subsynchronous Oscillations

KW - Voltage Source Conveter (VSC)

UR - https://www.scopus.com/pages/publications/85081564648

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85081564648&origin=recordpage

U2 - 10.1049/cp.2019.0475

DO - 10.1049/cp.2019.0475

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 978-1-83953-125-5

BT - 8th Renewable Power Generation Conference (RPG 2019)

PB - IEEE

T2 - 8th Renewable Power Generation Conference (RPG 2019)

Y2 - 24 October 2019 through 25 October 2019

ER -

Stability analysis of grid-connected VSC based on impedance modelling

Abstract

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UN SDGs

Research Keywords

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