Unified observability analysis and measurement placement in generalized state estimation

Katsikas, PJ; Korres, GN

dc.contributor.author	Katsikas, PJ	en
dc.contributor.author	Korres, GN	en
dc.date.accessioned	2014-03-01T01:19:40Z
dc.date.available	2014-03-01T01:19:40Z
dc.date.issued	2003	en
dc.identifier.issn	0885-8950	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15652
dc.subject	Circuit breaker	en
dc.subject	Generalized state estimation	en
dc.subject	Measurement placement	en
dc.subject	Observability	en
dc.subject	Observable islands	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.other	Algorithms	en
dc.subject.other	Electric circuit breakers	en
dc.subject.other	Numerical methods	en
dc.subject.other	Observability	en
dc.subject.other	State estimation	en
dc.subject.other	Measurement placement	en
dc.subject.other	Electric substations	en
dc.title	Unified observability analysis and measurement placement in generalized state estimation	en
heal.type	journalArticle	en
heal.identifier.primary	10.1109/TPWRS.2002.807074	en
heal.identifier.secondary	http://dx.doi.org/10.1109/TPWRS.2002.807074	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	This paper deals with the problem of observability analysis and measurement placement in generalized state estimation, where substations are modeled at the physical-level (bus-section/switching-device model) by explicit representation of circuit breakers. The conventional state estimator is extended by incorporating the active- and reactive-power flows through circuit breakers as state variables. The generalized measurement model is transformed to a conventional node frame of reference formulation. Any circuit breaker (flow measured or not) is substituted by two fictitious nodes and branches, the two pairs of the corresponding voltage angles and magnitudes, and additional pseudo measurements. A very efficient numerical method is proposed for observability testing and identification of observable islands. When the network is unobservable multiple measurement placement is accomplished in a noniterative manner. Results from a test system are presented.	en
heal.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC	en
heal.journalName	IEEE Transactions on Power Systems	en
dc.identifier.doi	10.1109/TPWRS.2002.807074	en
dc.identifier.isi	ISI:000180981100043	en
dc.identifier.volume	18	en
dc.identifier.issue	1	en
dc.identifier.spage	324	en
dc.identifier.epage	333	en