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

138 Citations (Scopus)


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
Issue number6
Publication statusPublished - 1 Jan 2013


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

Cite this