Influence of tower shadow and wind turbulence on the performance of power system stabilizers for DFIG-based wind farms

F.M. Hughes, O. Anaya-Lara, G. Ramtharan, N. Jenkins, G. Strbac

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

The aim of the paper is to demonstrate the way in which mechanical power variations, due to tower shadow and wind turbulence, influence control performance of power system stabilizer (PSS) loops for doubly-fed induction generators (DFIGs). The PSS auxiliary loops are applied on a specific DFIG control scheme, the flux magnitude and angle controller (FMAC). However, since the PSS signal is applied at the output of the basic controller, the PSS performance characteristics displayed are deemed typical for DFIG control schemes in general. The relative capabilities of PSS controllers based on stator power, rotor speed, and network frequency, when the DFIG turbine is subjected to aerodynamic torque variations, are investigated via simulation studies. A two-generator aggregate model of a wind farm is introduced, which enables the influence of tower shadow and wind turbulence on both an individual turbine and on the overall wind farm itself to be assessed.
Original languageEnglish
Pages (from-to)519-528
Number of pages10
JournalIEEE Transactions on Energy Conversion
Volume23
Issue number2
DOIs
Publication statusPublished - Jun 2008

Keywords

  • doubly-fed induction generator (DFIG) control
  • dynamic stability
  • power system stabilizer
  • tower shadow
  • transient stability

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