Damping torque analysis of VSC-HVDC supplementary damping controller for small-signal stability

Tao Zhou; Zhong Chen; Bixing Ren; Siqi Bu; Puyu Wang

doi:10.1109/ACCESS.2020.3036495

Damping torque analysis of VSC-HVDC supplementary damping controller for small-signal stability

Tao Zhou, Zhong Chen, Bixing Ren, Siqi Bu, Puyu Wang

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

12 Citations (Scopus)

Abstract

In order to improve the small-signal stability of AC/DC hybrid systems containing voltage-source converter based high-voltage direct current (VSC-HVDC), this article extends damping torque analysis (DTA) theory to VSC-HVDC supplementary damping controller to analyze its dynamic impacts and inhibit oscillations. Firstly, this article presents the mechanism and procedure of VSC supplementary damping controller and establishes the linearized model of AC/DC system with damping controllers. On this basis, the DTA theory of VSC supplementary damping controller and the equation of damping torque index (DTI) are derived. The theory can be applied to the design of the damping controller including the selection of installation location and channel as well as the parameter tuning. Finally, case studies are carried out in two AC/DC hybrid systems containing VSC-HVDC. The simulation results verify the correctness and feasibility of DTI analysis. VSC damping controllers designed by the proposed method can effectively suppress oscillations and improve the dynamic stability of the AC/DC system.

Original language	English
Pages (from-to)	202696-202706
Number of pages	11
Journal	IEEE Access
Volume	8
DOIs	https://doi.org/10.1109/ACCESS.2020.3036495
Publication status	Published - Nov 2020

Keywords

AC/DC system
Damping torque analysis (DTA)
Small-signal stability
Supplementary damping controller
VSC-HVDC

ASJC Scopus subject areas

General Computer Science
General Materials Science
General Engineering

More information

10.1109/ACCESS.2020.3036495

Cite this

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title = "Damping torque analysis of VSC-HVDC supplementary damping controller for small-signal stability",

abstract = "In order to improve the small-signal stability of AC/DC hybrid systems containing voltage-source converter based high-voltage direct current (VSC-HVDC), this article extends damping torque analysis (DTA) theory to VSC-HVDC supplementary damping controller to analyze its dynamic impacts and inhibit oscillations. Firstly, this article presents the mechanism and procedure of VSC supplementary damping controller and establishes the linearized model of AC/DC system with damping controllers. On this basis, the DTA theory of VSC supplementary damping controller and the equation of damping torque index (DTI) are derived. The theory can be applied to the design of the damping controller including the selection of installation location and channel as well as the parameter tuning. Finally, case studies are carried out in two AC/DC hybrid systems containing VSC-HVDC. The simulation results verify the correctness and feasibility of DTI analysis. VSC damping controllers designed by the proposed method can effectively suppress oscillations and improve the dynamic stability of the AC/DC system.",

keywords = "AC/DC system, Damping torque analysis (DTA), Small-signal stability, Supplementary damping controller, VSC-HVDC",

author = "Tao Zhou and Zhong Chen and Bixing Ren and Siqi Bu and Puyu Wang",

note = "Funding Information: This work was supported in part by the National Key Research and Development Program under Grant 2016YFB0900602, and in part by the Jiangsu Key Laboratory of Smart Grid Technology and Equipment. Publisher Copyright: {\textcopyright} 2020 Institute of Electrical and Electronics Engineers Inc.. All rights reserved.",

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T1 - Damping torque analysis of VSC-HVDC supplementary damping controller for small-signal stability

AU - Zhou, Tao

AU - Chen, Zhong

AU - Ren, Bixing

AU - Bu, Siqi

AU - Wang, Puyu

N1 - Funding Information: This work was supported in part by the National Key Research and Development Program under Grant 2016YFB0900602, and in part by the Jiangsu Key Laboratory of Smart Grid Technology and Equipment. Publisher Copyright: © 2020 Institute of Electrical and Electronics Engineers Inc.. All rights reserved.

PY - 2020/11

Y1 - 2020/11

N2 - In order to improve the small-signal stability of AC/DC hybrid systems containing voltage-source converter based high-voltage direct current (VSC-HVDC), this article extends damping torque analysis (DTA) theory to VSC-HVDC supplementary damping controller to analyze its dynamic impacts and inhibit oscillations. Firstly, this article presents the mechanism and procedure of VSC supplementary damping controller and establishes the linearized model of AC/DC system with damping controllers. On this basis, the DTA theory of VSC supplementary damping controller and the equation of damping torque index (DTI) are derived. The theory can be applied to the design of the damping controller including the selection of installation location and channel as well as the parameter tuning. Finally, case studies are carried out in two AC/DC hybrid systems containing VSC-HVDC. The simulation results verify the correctness and feasibility of DTI analysis. VSC damping controllers designed by the proposed method can effectively suppress oscillations and improve the dynamic stability of the AC/DC system.

AB - In order to improve the small-signal stability of AC/DC hybrid systems containing voltage-source converter based high-voltage direct current (VSC-HVDC), this article extends damping torque analysis (DTA) theory to VSC-HVDC supplementary damping controller to analyze its dynamic impacts and inhibit oscillations. Firstly, this article presents the mechanism and procedure of VSC supplementary damping controller and establishes the linearized model of AC/DC system with damping controllers. On this basis, the DTA theory of VSC supplementary damping controller and the equation of damping torque index (DTI) are derived. The theory can be applied to the design of the damping controller including the selection of installation location and channel as well as the parameter tuning. Finally, case studies are carried out in two AC/DC hybrid systems containing VSC-HVDC. The simulation results verify the correctness and feasibility of DTI analysis. VSC damping controllers designed by the proposed method can effectively suppress oscillations and improve the dynamic stability of the AC/DC system.

KW - AC/DC system

KW - Damping torque analysis (DTA)

KW - Small-signal stability

KW - Supplementary damping controller

KW - VSC-HVDC

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DO - 10.1109/ACCESS.2020.3036495

M3 - Journal article

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JO - IEEE Access

JF - IEEE Access

ER -

Damping torque analysis of VSC-HVDC supplementary damping controller for small-signal stability

Abstract

Keywords

ASJC Scopus subject areas

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