Power-flow control and stability enhancement of four parallel-operated offshore wind farms using a line-commutated HVDC link

Li Wang, Kuo Hua Wang, Wei Jen Lee, Zhe Chen

Research output: Contribution to journalArticlepeer-review

57 Citations (Scopus)

Abstract

This paper presents an effective control scheme using a line-commutated high-voltage direct-current (HVDC) link with a designed rectifier current regulator (RCR) to simultaneously perform both power-fluctuation mitigation and damping improvement of four parallel-operated 80-MW offshore wind farms delivering generated power to a large utility grid. The proposed RCR of the HVDC link is designed by using modal control theory to contribute adequate damping to the studied four offshore wind farms under various wind speeds. A systematic analysis using a frequency-domain approach based on eigenvalue analysis and a time-domain scheme based on nonlinear model simulations is performed to demonstrate the effectiveness of the proposed control scheme. It can be concluded from the simulation results that the proposed HVDC link combined with the designed RCR can not only render adequate damping characteristics to the studied offshore wind farms under various wind speeds but also effectively mitigate power fluctuations of the offshore wind farms under wind-speed disturbance conditions.

Original languageEnglish
Article number5352307
Pages (from-to)1190-1202
Number of pages13
JournalIEEE Transactions on Power Delivery
Volume25
Issue number2
DOIs
Publication statusPublished - 2010 Apr

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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