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Conference Paper: Comparison of the linear approximations for the dynamic security region of network-reduction power systems

TitleComparison of the linear approximations for the dynamic security region of network-reduction power systems
Authors
KeywordsLinear Approximation
Dynamic Security Region
Transient Stability
Stability Region
Direct Method
Issue Date2006
PublisherIEEE
Citation
IEEE Power Engineering Society General Meeting, Montreal, Canada, 18-22 June 2006 How to Cite?
AbstractThe dynamic security region (DSR) of bulk power system has been accepted more and more in recent years for providing plenty of security information and good prospect in online application. This paper compares three linear approximations for the dynamic security region of network-reduction power systems. The three linear approximations are the Q-linear approximation based on the quadratic approximation of stability region, the L-linear approximation based on the linear approximation of stability region and the L0-linear approximation based on the invariant assumption of the normal vector for the boundary of the stability region corresponding to different control variable. The three linear approximations are all obtained with a same critical point lying just on the boundary of dynamic security region. The critical point is searched with numerical simulation. The accuracy of the three linear approximations is compared, using the linear approximation obtained with the curve fitting approach or the actual boundary of DSR searched as the benchmark. Simulation results in IEEE 3-machine 9-bus system and 10-machine 39-bus New England system show that all the three linear approximations display fairly accurate estimation. Furthermore, from the computational viewpoint, the L-linear and the L0-linear method are two alternative choices to approximate the dynamic security region.
Persistent Identifierhttp://hdl.handle.net/10722/99818
ISSN

 

DC FieldValueLanguage
dc.contributor.authorXue, ACen_HK
dc.contributor.authorHu, Wen_HK
dc.contributor.authorMei,Sen_HK
dc.contributor.authorNi, Yen_HK
dc.contributor.authorWu, FFen_HK
dc.contributor.authorLu, Q-
dc.date.accessioned2010-09-25T18:45:23Z-
dc.date.available2010-09-25T18:45:23Z-
dc.date.issued2006en_HK
dc.identifier.citationIEEE Power Engineering Society General Meeting, Montreal, Canada, 18-22 June 2006-
dc.identifier.issn1932-5517-
dc.identifier.urihttp://hdl.handle.net/10722/99818-
dc.description.abstractThe dynamic security region (DSR) of bulk power system has been accepted more and more in recent years for providing plenty of security information and good prospect in online application. This paper compares three linear approximations for the dynamic security region of network-reduction power systems. The three linear approximations are the Q-linear approximation based on the quadratic approximation of stability region, the L-linear approximation based on the linear approximation of stability region and the L0-linear approximation based on the invariant assumption of the normal vector for the boundary of the stability region corresponding to different control variable. The three linear approximations are all obtained with a same critical point lying just on the boundary of dynamic security region. The critical point is searched with numerical simulation. The accuracy of the three linear approximations is compared, using the linear approximation obtained with the curve fitting approach or the actual boundary of DSR searched as the benchmark. Simulation results in IEEE 3-machine 9-bus system and 10-machine 39-bus New England system show that all the three linear approximations display fairly accurate estimation. Furthermore, from the computational viewpoint, the L-linear and the L0-linear method are two alternative choices to approximate the dynamic security region.-
dc.languageengen_HK
dc.publisherIEEE-
dc.relation.ispartofIEEE Power Engineering Society General Meetingen_HK
dc.subjectLinear Approximation-
dc.subjectDynamic Security Region-
dc.subjectTransient Stability-
dc.subjectStability Region-
dc.subjectDirect Method-
dc.titleComparison of the linear approximations for the dynamic security region of network-reduction power systemsen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailNi, Y: yxni@eee.hku.hken_HK
dc.identifier.emailWu, FF: ffwu@eee.hku.hken_HK
dc.identifier.authorityNi, Y=rp00161en_HK
dc.identifier.authorityWu, FF=rp00194en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/PES.2006.1709068-
dc.identifier.hkuros120487en_HK

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