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: Chapter in Book/Report/Conference proceedingChapter

Abstract

This chapter 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 (Wang et al., IEEE Trans Power Delivery 25(2):1190-1202, 2010).

Original languageEnglish
Title of host publicationWind Energy Conversion Systems Technology and Trends
Pages385-414
Number of pages30
DOIs
Publication statusPublished - 2012 Dec 1

Publication series

NameGreen Energy and Technology
Volume78
ISSN (Print)1865-3529
ISSN (Electronic)1865-3537

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Industrial and Manufacturing Engineering
  • Management, Monitoring, Policy and Law

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  • Cite this

    Wang, L., Wang, K. H., Lee, W. J., & Chen, Z. (2012). Power-Flow Control and Stability Enhancement of Four Parallel-Operated Offshore Wind Farms Using a Line-Commutated HVDC Link. In Wind Energy Conversion Systems Technology and Trends (pp. 385-414). (Green Energy and Technology; Vol. 78). https://doi.org/10.1007/978-1-4471-2201-2_16