Local voltage instability monitoring and protection in the presence of self-restoring loads and two-level LTCs

Lambrou, C; Mandoulidis, P; Vournas, C

dc.contributor.author	Lambrou, C	en
dc.contributor.author	Mandoulidis, P	en
dc.contributor.author	Vournas, C	en
dc.date.accessioned	2014-03-01T02:47:24Z
dc.date.available	2014-03-01T02:47:24Z
dc.date.issued	2011	en
dc.identifier.issn	19449925	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/33122
dc.subject	Load Tap Changers	en
dc.subject	protection against voltage collapse	en
dc.subject	restorative load	en
dc.subject	voltage instability monitoring	en
dc.subject	Voltage stability	en
dc.subject.other	Bulk power	en
dc.subject.other	Corrective measures	en
dc.subject.other	Distribution voltages	en
dc.subject.other	Load tap changer	en
dc.subject.other	LTC transformers	en
dc.subject.other	protection against voltage collapse	en
dc.subject.other	Protection systems	en
dc.subject.other	restorative load	en
dc.subject.other	Stable operation	en
dc.subject.other	Test systems	en
dc.subject.other	Voltage instability	en
dc.subject.other	Electric power transmission	en
dc.subject.other	Electric utilities	en
dc.subject.other	Transformer protection	en
dc.subject.other	Voltage control	en
dc.subject.other	Stability	en
dc.title	Local voltage instability monitoring and protection in the presence of self-restoring loads and two-level LTCs	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/PES.2011.6039524	en
heal.identifier.secondary	http://dx.doi.org/10.1109/PES.2011.6039524	en
heal.identifier.secondary	6039524	en
heal.publicationDate	2011	en
heal.abstract	In this paper we give an overview of a local voltage instability monitoring and protection system integrated in the controller of each bulk power delivery LTC transformer. The proposed system identifies imminent voltage instability and subsequently applies corrective measures to restore stable operation by properly adjusting the distribution voltage setpoint of the LTC. The system is extended in this paper to include also the LTCs acting on EHV/HV autotransformers and is checked in the presence of self-restoring loads. Application on a small test system and a 52-bus test system shows the performance of the proposed system and the associated problems and solutions. © 2011 IEEE.	en
heal.journalName	IEEE Power and Energy Society General Meeting	en
dc.identifier.doi	10.1109/PES.2011.6039524	en