A New Control Algorithm for Directly Interconnected Offshore Wind Turbine Generators

Emir Omerdic, Jakub Osmic, Daniel Toal, Cathal W. O'donnell

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A new control algorithm for Directly Interconnected offshore Wind Turbines with permanent magnet synchronous Generators (DIWTG) is presented. In the DΓWTG offshore wind park configuration, Wind Turbines with Permanent Magnet Synchronous Generators (WTPMSG) are directly connected to the offshore AC collection grid without using a power converter. The offshore AC collection grid is then connected, via a transformer, to the offshore AC transmission grid. In order to achieve maximum power point tracking, the (collective) speed of DΓWTGs is controlled by an onshore back to back converter. By measuring the active power and speed of the permanent magnet generators, wind speed at each turbine is estimated and used for calculation of the reference speed of WTPMSGs. Voltage control at the power converter side is performed in a way which allow the DΓWTGs to be operated at a constant V/f where the maximum resultant frequency at nominal wind speed is 16.67 Hz.

Original languageEnglish
Title of host publication2019 54th International Universities Power Engineering Conference, UPEC 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728133492
DOIs
Publication statusPublished - Sep 2019
Event54th International Universities Power Engineering Conference, UPEC 2019 - Bucharest, Romania
Duration: 3 Sep 20196 Sep 2019

Publication series

Name2019 54th International Universities Power Engineering Conference, UPEC 2019 - Proceedings

Conference

Conference54th International Universities Power Engineering Conference, UPEC 2019
Country/TerritoryRomania
CityBucharest
Period3/09/196/09/19

Keywords

  • Control
  • directly interconnected
  • offshore
  • PMSG
  • wind turbine

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