Voltage control of multiterminal VSC-HVDC transmission systems for offshore wind power plants: design and implementation in a scaled platform

Agustí Egea-Alvarez, Fernando Bianchi, Adrià Junyent-Ferre, Gabriel Gross, Oriol Gomis-Bellmunt

Research output: Contribution to journalArticlepeer-review

137 Citations (Scopus)

Abstract

This paper deals with multiterminal voltage source converter (VSC) HVDC transmission systems for the connection of offshore wind power plants to the main land ac grid. A droop-based control scheme is considered. The droop controllers have been designed base on a mixed sensitivity criterion by solving a convex optimization problem with linear matrix inequalities. The system is analyzed by means of simulations and experimentally in a scaled platform. Simulations show the control performance during a wind speed change and a voltage sag in the main ac grid. Experimental results include wind power changes (increase and decrease) and an eventual VSC loss (both considering grid-side and wind farm VSC loss). In all the cases, the simulation and the experimental results have shown a good system performance.

Original languageEnglish
Article number6365310
Pages (from-to)2381-2391
Number of pages11
JournalIEEE Transactions on Industrial Electronics
Volume60
Issue number6
DOIs
Publication statusPublished - 1 Jan 2013

Keywords

  • HVDC
  • multiterminal HVDC (M-HVDC)
  • offshore wind power
  • voltage control
  • wind power generation

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