Damping of Subsynchronous Resonance in a Hybrid System with a Steam-Turbine Generator and an Offshore Wind Farm Using a Unified Power-Flow Controller

Li Wang, Shi Ying Zeng, Wen Kai Feng, Anton Victorovich Prokhorov, Hazlie Mokhlis, Chua Kein Huat, Manoj Tripathy

Research output: Contribution to journalArticlepeer-review

Abstract

This article proposes a unified power-flow controller (UPFC) to suppress subsynchronous resonance occurred in a hybrid power-generation system connected to an infinite bus through a series-capacitor compensated line. The hybrid power-generation system contains a steam-turbine generator (STG) and an offshore wind farm (OWF) based on doubly-fed induction generator (DFIG). The d-q axis equivalent-circuit model under three-phase balanced loading conditions is derived to establish the complete system model including the STG set, the DFIG-based OWF, the series-capacitor compensated line, the UPFC, etc. A damping controller of the proposed UPFC is designed by using pole-assignment approach based on modal control theory to effectively damp out unstable STG modes of the studied system. Both small-signal stability and transient simulation results of the studied system are systematically performed. The simulation results show that the proposed UPFC joined with the designed damping controller can effectively suppress unstable STG modes of the studied power system.

Original languageEnglish
Article number9237123
Pages (from-to)110-120
Number of pages11
JournalIEEE Transactions on Industry Applications
Volume57
Issue number1
DOIs
Publication statusPublished - 1 Jan 2021

Keywords

  • Doubly-fed induction generator (DFIG)
  • offshore wind farm (OWF)
  • series-capacitor compensated line
  • stability
  • steam-turbine generator (STG)
  • subsynchronous resonance (SSR)
  • unified power-flow controller (UPFC)

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Damping of Subsynchronous Resonance in a Hybrid System with a Steam-Turbine Generator and an Offshore Wind Farm Using a Unified Power-Flow Controller'. Together they form a unique fingerprint.

Cite this