Transient support to frequency control from wind turbine with synchronous generator and full converter

S. Grillo, M. Marinelli, F. Silvestro, Fabrizio Sossan, O. Anaya-Lara, G. Burt

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Abstract

The aim of this paper is to describe two regulators for a wind turbine equipped with a synchronous generator and a full converter for the interconnection to the grid. The idea is to extract a temporary amount of power from the wind turbine in order to provide short-term frequency support. The wind turbine model presented is specifically designed to analyse effects of wind generation on the electric grid. The first proposed regulator works to decelerate the rotor and hence transferring part of its kinetic energy to the electric grid: this can be done with variable speed wind turbines because the presence of electronic converters decouples the rotational speed of the turbine rotor from the grid frequency. The second proposed regulator acts on the pitch angle of the blades. Normally wind generators work at maximum efficiency: in this case a reserve of power is obtained working at a degraded point in the aerodynamic characteristic and it can be injected into the grid by pitching the blade. The simulation for testing the behaviour of the two regulators is performed in Matlab-Simulink using the Phasor simulation mode of SimPowerSystems.
Original languageEnglish
Title of host publicationProceedings of the Universities Power Engineering Conference
Number of pages6
PublisherIEEE
Publication date2010
ISBN (Print)9781424476671
Publication statusPublished - 2010
Externally publishedYes
Event2010 45th International Universities' Power Engineering Conference - Cardiff, United Kingdom
Duration: 31 Aug 20103 Sep 2010
Conference number: 45

Conference

Conference2010 45th International Universities' Power Engineering Conference
Number45
Country/TerritoryUnited Kingdom
CityCardiff
Period31/08/201003/09/2010

Keywords

  • Renewable Generation
  • Wind Power
  • Distributed Generation
  • Primary Frequency Control Support

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