Centrally coordinated control of multiple HVDC links for power oscillation damping
2010 (English)In: POWER CONTROL AND OPTIMIZATION, 2010, Vol. 1239, 134-140 p.Conference paper (Refereed)
This paper presents a method of how to design a centrally coordinated controller for several HVDC links. The controller increases the damping of the power oscillations by modulating the current through the HVDC links coordinately. To design a centrally coordinated controller a reduced order open system model is estimated. The open system model of the power system is developed by using black-box system identifications techniques. The current setpoint change through the HVDC links is the set of input signals and, the speeds of the generators are the set of outputs. Numerical Algorithms for Subspace State-Space System Identification (N4SID) is used to identify a model. This controller design method increases the damping significantly which is shown for a small power system.
Place, publisher, year, edition, pages
2010. Vol. 1239, 134-140 p.
, AIP Conference Proceedings, ISSN 0094-243X ; 1239
Coordinated control, HVDC link, Modal Analysis, Small Signal Stability, System Modeling
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-36418DOI: 10.1063/1.3459741ISI: 000283210500017ScopusID: 2-s2.0-77955759201ISBN: 978-0-7354-0785-5OAI: oai:DiVA.org:kth-36418DiVA: diva2:430721
3rd Global Conference on Power Control and Optimization Gold Coast, AUSTRALIA, FEB 02-04, 2010