Stability analysis of a hybrid multi-infeed HVDC system connected between two offshore wind farms and two power grids

Abstract

This paper presents the stability simulation results of two equivalent aggregated offshore wind farms (OWFs) based on doubly-fed induction generator (DFIG) fed to two power grids through a multi-infeed hybrid HVDC system. The multi-infeed hybrid HVDC system consists of a line-commutated converter (LCC) based HVDC link and a voltage-source converter (VSC) based HVDC link. A static synchronous compensator (STATCOM) is connected at the rectifier station of the LCC-based HVDC link. A unified approach based on modal control theory of pole-assignment approach is employed to design damping controllers for the two HVDC links, respectively. Steady-state results under different wind speeds of the two OWFs are carried out. Comparative dynamic responses of the studied system with and without the designed damping controllers for the two HVDC links under wind-speed changes are also achieved. Comparative transient simulations of the studied system with and without the STATCOM subject to a three-phase fault are also performed.

Original language	English
Title of host publication	IEEE Industry Application Society, 52nd Annual Meeting
Subtitle of host publication	IAS 2016
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781467386715
DOIs	https://doi.org/10.1109/IAS.2016.7731960
Publication status	Published - 2 Nov 2016
Event	52nd Annual Meeting on IEEE Industry Application Society, IAS 2016 - Portland, United States Duration: 2 Oct 2016 → 6 Oct 2016

Conference

Conference	52nd Annual Meeting on IEEE Industry Application Society, IAS 2016
Country	United States
City	Portland
Period	2.10.16 → 6.10.16

Keywords

damping controller
multi-infeed HVDC system
offshore wind farm
simulations
Stability
static synchronous compensator

ASJC Scopus subject areas

Energy Engineering and Power Technology
Renewable Energy, Sustainability and the Environment

Access to Document

10.1109/IAS.2016.7731960

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Stability analysis of a hybrid multi-infeed HVDC system connected between two offshore wind farms and two power grids. / Wang, Li; Yang, Zhi Hao; Prokhorov, Anton V.

IEEE Industry Application Society, 52nd Annual Meeting: IAS 2016. Institute of Electrical and Electronics Engineers Inc., 2016. 7731960.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Wang, L, Yang, ZH & Prokhorov, AV 2016, Stability analysis of a hybrid multi-infeed HVDC system connected between two offshore wind farms and two power grids. in IEEE Industry Application Society, 52nd Annual Meeting: IAS 2016., 7731960, Institute of Electrical and Electronics Engineers Inc., 52nd Annual Meeting on IEEE Industry Application Society, IAS 2016, Portland, United States, 2.10.16. https://doi.org/10.1109/IAS.2016.7731960

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abstract = "This paper presents the stability simulation results of two equivalent aggregated offshore wind farms (OWFs) based on doubly-fed induction generator (DFIG) fed to two power grids through a multi-infeed hybrid HVDC system. The multi-infeed hybrid HVDC system consists of a line-commutated converter (LCC) based HVDC link and a voltage-source converter (VSC) based HVDC link. A static synchronous compensator (STATCOM) is connected at the rectifier station of the LCC-based HVDC link. A unified approach based on modal control theory of pole-assignment approach is employed to design damping controllers for the two HVDC links, respectively. Steady-state results under different wind speeds of the two OWFs are carried out. Comparative dynamic responses of the studied system with and without the designed damping controllers for the two HVDC links under wind-speed changes are also achieved. Comparative transient simulations of the studied system with and without the STATCOM subject to a three-phase fault are also performed.",

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AB - This paper presents the stability simulation results of two equivalent aggregated offshore wind farms (OWFs) based on doubly-fed induction generator (DFIG) fed to two power grids through a multi-infeed hybrid HVDC system. The multi-infeed hybrid HVDC system consists of a line-commutated converter (LCC) based HVDC link and a voltage-source converter (VSC) based HVDC link. A static synchronous compensator (STATCOM) is connected at the rectifier station of the LCC-based HVDC link. A unified approach based on modal control theory of pole-assignment approach is employed to design damping controllers for the two HVDC links, respectively. Steady-state results under different wind speeds of the two OWFs are carried out. Comparative dynamic responses of the studied system with and without the designed damping controllers for the two HVDC links under wind-speed changes are also achieved. Comparative transient simulations of the studied system with and without the STATCOM subject to a three-phase fault are also performed.

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