Impedance-Based Damping Effect Analysis for the Inner Loop of Grid-Forming VSCs

Liang Zhao; Xiongfei Wang; Zheming Jin

doi:10.1049/icp.2023.2745

Impedance-Based Damping Effect Analysis for the Inner Loop of Grid-Forming VSCs

Liang Zhao, Xiongfei Wang^*, Zheming Jin

^*Corresponding author for this work

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

Abstract

This paper analyzes the damping effects of inner-loop virtual admittance (VA) control, current control (CC), and voltage decoupling (VD) control on grid-forming voltage-source converters. An impedance model is proposed to capture inner-loop dynamics, utilizing equivalent resistance to reflect the damping effect on the dc components of ac voltage/current. It reveals that CC with a finite proportional gain interacts with VA control, resulting in a negative-resistance effect. Increasing the proportional gain of CC and employing VD control can mitigate this negative-resistance effect, while also ensuring that VA control provides a positive-resistance effect. Finally, co-design guidelines for VA-CC-VD control are developed and validated through experimental results.

Original language	English
Title of host publication	22nd Wind And Solar Integration Workshop (wiw 2023)
Number of pages	6
Publisher	Institution of Engineering and Technology (IET)
Publication date	2023
Pages	254-259
ISBN (Electronic)	978-1-83953-966-4
DOIs	https://doi.org/10.1049/icp.2023.2745
Publication status	Published - 2023
Event	22nd Wind and Solar Integration Workshop, WIW 2023 - Copenhagen, Denmark Duration: 26 Sept 2023 → 28 Sept 2023

Conference

Conference	22nd Wind and Solar Integration Workshop, WIW 2023
Country/Territory	Denmark
City	Copenhagen
Period	26/09/2023 → 28/09/2023

Bibliographical note

Publisher Copyright:
© Energynautics GmbH.

Keywords

ACTIVE DAMPING
CURRENT CONTROL
GRID-FORMING CONTROL
VIRTUAL ADMITTANCE
VOLTAGE-SOURCE CONVERTERS

Access to Document

10.1049/icp.2023.2745

AUB Link

Search for the material in Aalborg University Library's search engine

Cite this

@inproceedings{2161aac7c56a4f4285bd50f5a4892ba4,

title = "Impedance-Based Damping Effect Analysis for the Inner Loop of Grid-Forming VSCs",

abstract = "This paper analyzes the damping effects of inner-loop virtual admittance (VA) control, current control (CC), and voltage decoupling (VD) control on grid-forming voltage-source converters. An impedance model is proposed to capture inner-loop dynamics, utilizing equivalent resistance to reflect the damping effect on the dc components of ac voltage/current. It reveals that CC with a finite proportional gain interacts with VA control, resulting in a negative-resistance effect. Increasing the proportional gain of CC and employing VD control can mitigate this negative-resistance effect, while also ensuring that VA control provides a positive-resistance effect. Finally, co-design guidelines for VA-CC-VD control are developed and validated through experimental results.",

keywords = "ACTIVE DAMPING, CURRENT CONTROL, GRID-FORMING CONTROL, VIRTUAL ADMITTANCE, VOLTAGE-SOURCE CONVERTERS",

author = "Liang Zhao and Xiongfei Wang and Zheming Jin",

note = "Publisher Copyright: {\textcopyright} Energynautics GmbH.; 22nd Wind and Solar Integration Workshop, WIW 2023 ; Conference date: 26-09-2023 Through 28-09-2023",

year = "2023",

doi = "10.1049/icp.2023.2745",

language = "English",

pages = "254--259",

booktitle = "22nd Wind And Solar Integration Workshop (wiw 2023)",

publisher = "Institution of Engineering and Technology (IET)",

address = "United States",

}

Impedance-Based Damping Effect Analysis for the Inner Loop of Grid-Forming VSCs. / Zhao, Liang; Wang, Xiongfei; Jin, Zheming.
22nd Wind And Solar Integration Workshop (wiw 2023). Institution of Engineering and Technology (IET), 2023. p. 254-259.

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - Impedance-Based Damping Effect Analysis for the Inner Loop of Grid-Forming VSCs

AU - Zhao, Liang

AU - Wang, Xiongfei

AU - Jin, Zheming

N1 - Publisher Copyright: © Energynautics GmbH.

PY - 2023

Y1 - 2023

N2 - This paper analyzes the damping effects of inner-loop virtual admittance (VA) control, current control (CC), and voltage decoupling (VD) control on grid-forming voltage-source converters. An impedance model is proposed to capture inner-loop dynamics, utilizing equivalent resistance to reflect the damping effect on the dc components of ac voltage/current. It reveals that CC with a finite proportional gain interacts with VA control, resulting in a negative-resistance effect. Increasing the proportional gain of CC and employing VD control can mitigate this negative-resistance effect, while also ensuring that VA control provides a positive-resistance effect. Finally, co-design guidelines for VA-CC-VD control are developed and validated through experimental results.

AB - This paper analyzes the damping effects of inner-loop virtual admittance (VA) control, current control (CC), and voltage decoupling (VD) control on grid-forming voltage-source converters. An impedance model is proposed to capture inner-loop dynamics, utilizing equivalent resistance to reflect the damping effect on the dc components of ac voltage/current. It reveals that CC with a finite proportional gain interacts with VA control, resulting in a negative-resistance effect. Increasing the proportional gain of CC and employing VD control can mitigate this negative-resistance effect, while also ensuring that VA control provides a positive-resistance effect. Finally, co-design guidelines for VA-CC-VD control are developed and validated through experimental results.

KW - ACTIVE DAMPING

KW - CURRENT CONTROL

KW - GRID-FORMING CONTROL

KW - VIRTUAL ADMITTANCE

KW - VOLTAGE-SOURCE CONVERTERS

UR - http://www.scopus.com/inward/record.url?scp=85184366760&partnerID=8YFLogxK

U2 - 10.1049/icp.2023.2745

DO - 10.1049/icp.2023.2745

M3 - Article in proceeding

AN - SCOPUS:85184366760

SP - 254

EP - 259

BT - 22nd Wind And Solar Integration Workshop (wiw 2023)

PB - Institution of Engineering and Technology (IET)

T2 - 22nd Wind and Solar Integration Workshop, WIW 2023

Y2 - 26 September 2023 through 28 September 2023

ER -

Impedance-Based Damping Effect Analysis for the Inner Loop of Grid-Forming VSCs

Abstract

Conference

Bibliographical note

Keywords

Access to Document

AUB Link

Other files and links

Fingerprint

Cite this