Discrete open loop control for power oscillation damping utilizing variable series reactance FACTS devices
2006 (English)In: PROCEEDINGS OF THE 41ST INTERNATIONAL UNIVERSITIES POWER ENGINEERING CONFERENCE, 2006, 785-789 p.Conference paper (Refereed)
This paper describes an open loop method of controlling FACTS devices for power oscillation damping. The method is based on step-wise series reactance modulation. The principle of the method is to stabilize an oscillation in a power system which is characterized by one major mode of oscillation by switching a reactance in series with one transmission line, thereby changing the total reactance between the areas participating in the oscillation. In order to stabilize the system during an oscillation, the stationary voltage angle difference between the areas is changed to coincide with the present angle at a point where the speed of the lumped machine representations of the areas is nominal. This is the case at the peaks of the oscillation. To determine the required size of the reactance step, a reduced model of the power system is used. The model parameters are continuously updated using local measurements of the active power on the reactance controlled line. Several approaches for damping with different numbers of steps are presented and verified using digital simulations of power system models.
Place, publisher, year, edition, pages
2006. 785-789 p.
Damping, Electric impedance, Electric power systems, Electric power transmission networks, Model structures, Modulation, Active Power (CO), angle difference, Digital simulations, FACTS (Flexible AC Transmission System) devices, In order, International (CO), Local measurements, machine representations, Model parameters, Open loop controlling, Open-loop method, power engineering, Power oscillation damping, Power system modelling, power systems, Reduced models, Transmission line (TL)
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-8039DOI: 10.1109/UPEC.2006.367586ISI: 000256054900159ScopusID: 2-s2.0-46849086754OAI: oai:DiVA.org:kth-8039DiVA: diva2:13254
41st International Universities Power Engineering Conference, Newcastle upon Tyne, ENGLAND, SEP 06, 2006-SEP 08, 2008
QC 201011122008-02-272008-02-272011-08-19Bibliographically approved