Offshore AC Grid Management for an AC Integrated VSC-HVDC Scheme with Large WPPs

Research output: Research - peer-reviewConference contribution

Abstract

Point-to-point VSC-HVDC Wind power plant (WPP)
links connected offshore by AC cables can be called an AC
integrated VSC-HVDC scheme or virtual multi-terminal DC
(MTDC) grid. Since, the AC integrated VSC-HVDC scheme
forms an offshore AC grid, parallel operation of offshore VSC-
HVDC converters is required. This paper compares three
offshore converter control topologies: (i) feedforward control of
AC voltage and frequency, (ii) feedback control of AC voltage,
and (iii) feedback control of AC voltage and frequency with an
inner current loop. The performance of power and current
based droops has been assessed for the parallel offshore
converters. Simulations carried out in DIgSILENT Power
Factory are presented to illustrate the effect of these offshore
converter control strategies on the dynamics of the AC system
following the offshore grid disturbances.

Bibliographical metadata

Original languageEnglish
Title of host publication2016 IEEE PES GM Proceedings
PublisherInstitute of Electrical and Electronics Engineers
DOIs
StatePublished - Jul 2016
Event2016 IEEE PES General Meeting - Boston Hotel and the John B. Hynes Veterans Memorial Convention Center, Boston, United States
Duration: 17 Jul 201621 Jul 2016
http://www.pes-gm.org/2016/venue/

Conference

Conference2016 IEEE PES General Meeting
CountryUnited States
CityBoston
Period17/07/1621/07/16
Internet address