Modelling and control of VSC-HVDC connected to island systems
2010 (English)In: IEEE Power and Energy Society General Meeting, IEEE , 2010Conference paper (Refereed)
The recently proposed power-synchronization control for grid-connected voltage-source converters (VSCs) has been shown to be a feasible solution for high-voltage dc (HVDC) transmission connected to high-impedance weak ac systems. In this paper, power-synchronization control is investigated for VSC-HVDC connected to another type of weak ac system, i.e., low-inertia or island systems. As an example, a linear model of a typical island system feeding by a VSC-HVDC link, including a synchronous generator, an induction motor and some passive loads, is developed for tuning the control parameters of the VSCHVDC. Time simulations in PSCAD/EMTDC demonstrate that VSC-HVDC using power-synchronization control is flexible for various network conditions, such as large-ac-system connection, island systems, or passive networks. The time simulations also show that power-synchronization control can seamlessly handle transitions between the operation modes, as well as ride through ac-system faults in all network conditions.
Place, publisher, year, edition, pages
IEEE , 2010.
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject SRA - Energy
IdentifiersURN: urn:nbn:se:kth:diva-40607DOI: 10.1109/PES.2010.5589367ISI: 000287611900072ScopusID: 2-s2.0-78649620985ISBN: 978-1-4244-8357-0OAI: oai:DiVA.org:kth-40607DiVA: diva2:441658
PES General Meeting. Minneapolis, MN. JUL 25-29, 2010
QC 201111092011-09-172011-09-172012-02-24Bibliographically approved