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Conference Paper: Comparison of the linear approximations for the dynamic security region of network-reduction power systems
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TitleComparison of the linear approximations for the dynamic security region of network-reduction power systems
 
AuthorsXue, A3 3
Hu, W3
Mei, S2 3
Ni, Y2 1
Wu, FF2 1
Lu, Q2 3
 
KeywordsDirect method
Dynamic security region
Linear approximation
Stability region
Transient stability
 
Issue Date2006
 
PublisherIEEE.
 
CitationIEEE Power Engineering Society General Meeting, Montreal, Canada, 18-22 June 2006 [How to Cite?]
DOI: http://dx.doi.org/10.1109/PES.2006.1709068
 
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 LOlinear 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. © 2006 IEEE.
 
DOIhttp://dx.doi.org/10.1109/PES.2006.1709068
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorXue, A
 
dc.contributor.authorHu, W
 
dc.contributor.authorMei, S
 
dc.contributor.authorNi, Y
 
dc.contributor.authorWu, FF
 
dc.contributor.authorLu, Q
 
dc.date.accessioned2007-10-30T06:38:15Z
 
dc.date.available2007-10-30T06:38:15Z
 
dc.date.issued2006
 
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 LOlinear 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. © 2006 IEEE.
 
dc.description.naturepublished_or_final_version
 
dc.format.extent269266 bytes
 
dc.format.extent12538 bytes
 
dc.format.extent11910 bytes
 
dc.format.mimetypeapplication/pdf
 
dc.format.mimetypetext/plain
 
dc.format.mimetypetext/plain
 
dc.identifier.citationIEEE Power Engineering Society General Meeting, Montreal, Canada, 18-22 June 2006 [How to Cite?]
DOI: http://dx.doi.org/10.1109/PES.2006.1709068
 
dc.identifier.doihttp://dx.doi.org/10.1109/PES.2006.1709068
 
dc.identifier.scopuseid_2-s2.0-35348855755
 
dc.identifier.urihttp://hdl.handle.net/10722/45908
 
dc.languageeng
 
dc.publisherIEEE.
 
dc.relation.ispartof2006 IEEE Power Engineering Society General Meeting, PES
 
dc.relation.referencesReferences in Scopus
 
dc.rights©2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
 
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License
 
dc.subjectDirect method
 
dc.subjectDynamic security region
 
dc.subjectLinear approximation
 
dc.subjectStability region
 
dc.subjectTransient stability
 
dc.titleComparison of the linear approximations for the dynamic security region of network-reduction power systems
 
dc.typeConference_Paper
 
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<contributor.author>Wu, FF</contributor.author>
<contributor.author>Lu, Q</contributor.author>
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<subject>Direct method</subject>
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Author Affiliations
  1. The University of Hong Kong
  2. IEEE
  3. Tsinghua University