A hybrid state estimator based on measurement system decomposition

Korres, GN

dc.contributor.author	Korres, GN	en
dc.date.accessioned	2014-03-01T02:41:39Z
dc.date.available	2014-03-01T02:41:39Z
dc.date.issued	2001	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30584
dc.subject	""Squared"" and ""Unsquared"" Measurements	en
dc.subject	Critical measurements	en
dc.subject	Flow islands	en
dc.subject	Maximal observable island	en
dc.subject	Positive definite matrix	en
dc.subject	State Estimation	en
dc.subject.other	Bad data processing	en
dc.subject.other	Critical measurements	en
dc.subject.other	Estimation problem	en
dc.subject.other	Flow islands	en
dc.subject.other	Gain matrices	en
dc.subject.other	Hybrid state	en
dc.subject.other	Injection measurement	en
dc.subject.other	Maximal observable island	en
dc.subject.other	Measurement system	en
dc.subject.other	Numerically robust	en
dc.subject.other	Observability analysis	en
dc.subject.other	Positive definite	en
dc.subject.other	Positive-definite matrices	en
dc.subject.other	Storage requirements	en
dc.subject.other	Weighted least squares approach	en
dc.subject.other	Data processing	en
dc.subject.other	State estimation	en
dc.subject.other	Flow measurement	en
dc.title	A hybrid state estimator based on measurement system decomposition	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/PTC.2001.964951	en
heal.identifier.secondary	http://dx.doi.org/10.1109/PTC.2001.964951	en
heal.identifier.secondary	964951	en
heal.publicationDate	2001	en
heal.abstract	This paper presents a flexible method for the solution of the State Estimation problem. The problem is formulated as a Weighted Least Squares (WLS) approach, where all the flow measurements and only a small number of selected non-redundant injection measurements are ""squared"" in the gain matrix, while the remaining injection measurements are maintained in ""unsquared"" form. The gain matrices are positive definite and can be easily factorized using well-known sparsity techniques. The method is numerically robust and reasonable in extra storage requirements. An observability analysis and bad data processing scheme are also proposed. The method is illustrated with the IEEE 14-bus system. © 2001 IEEE.	en
heal.journalName	2001 IEEE Porto Power Tech Proceedings	en
dc.identifier.doi	10.1109/PTC.2001.964951	en
dc.identifier.volume	3	en
dc.identifier.spage	434	en
dc.identifier.epage	439	en