Optimal control of voltage source converters under power system faults

Fernando D. Bianchi, Agustí Egea-Alvarez, Adrià Junyent-Ferré, Oriol Gomis-Bellmunt

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


For the integration of renewable energy in power systems, Voltage Source Converters (VSCs) must transfer power from a DC source to an AC grid with effective control of the DC voltage. An important demand is that the converters remain connected to the grid even under severe voltage perturbations. In these situations, the power transfer capability of the converter suffers a drastic reduction, which may cause over-voltages. In this paper, a multi-variable optimal control with anti-windup compensation is proposed with the aim of improving performance, especially under severe voltage faults. The proposed control scheme is evaluated by simulations using a detailed model of the VSC.

Original languageEnglish
Pages (from-to)539-546
Number of pages8
JournalControl Engineering Practice
Issue number5
Publication statusPublished - 1 May 2012


  • grid integration
  • optimal control
  • renewable energy systems
  • voltage source converters
  • windup


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