Current source converter series tapping of a LCC-HVDC transmission system for integration of offshore wind power plants

J. Sau-Bassols, A. Egea-Alvarez, E. Prieto-Araujo, O. Gomis-Bellmunt

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

5 Citations (Scopus)

Abstract

When using HVDC there are two available commercial possibilities: Transmissions based on Line Commutated Converters (LCC) and based on Voltage Source Converters (VSC). VSC-HVDC is more suitable for creating offshore grids. Despite this fact, many LCC transmission systems are in operation across the sea interconnecting mainlands or islands. This work addresses the concept of connecting wind power plants in series with an LCC-HVDC transmission link already built by means of a self-commutating Current Source Converter (CSC). The idea is similar to series tapping stations which can extract power form the HVDC link. Nevertheless, a CSC can act as a rectifier or inverter, so power reversal is available and has the same advantages of a VSC. The coupling between LCC stations and the CSC is straightforward since both topologies are current source converters. The control and operation of the system under normal conditions is presented and verified by means of simulations using MATLAB Simulink.
Original languageEnglish
Title of host publication11th IET International Conference on AC and DC Power Transmission
Place of PublicationStevenage
PublisherInstitution of Engineering and Technology
Number of pages7
ISBN (Print)978-1-84919-982-7
DOIs
Publication statusPublished - 13 Jul 2015
Event11th IET International Conference on AC and DC Power Transmission - Birmingham, United Kingdom
Duration: 10 Feb 201512 Feb 2015
http://conferences.theiet.org/acdc/index.cfm

Conference

Conference11th IET International Conference on AC and DC Power Transmission
CountryUnited Kingdom
CityBirmingham
Period10/02/1512/02/15
Internet address

Keywords

  • current source converter (CSC)
  • high voltage direct current (HVDC) transmission
  • line-commutated converter (LCC)
  • offshore wind power plant
  • tapping station

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    Sau-Bassols, J., Egea-Alvarez, A., Prieto-Araujo, E., & Gomis-Bellmunt, O. (2015). Current source converter series tapping of a LCC-HVDC transmission system for integration of offshore wind power plants. In 11th IET International Conference on AC and DC Power Transmission Stevenage: Institution of Engineering and Technology. https://doi.org/10.1049/cp.2015.0052