Publicação:
An active/reactive predispatch model incorporating ramp rate constraints solved by dual decomposition/lagrangian relaxation

dc.contributor.authorNepomuceno, Leonardo [UNESP]
dc.contributor.authorDa Silva, Paulo Sérgio [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:21:12Z
dc.date.available2014-05-27T11:21:12Z
dc.date.issued2004-12-01
dc.description.abstractThe Predispatch model (PD) calculates a short-term generation policy for power systems. In this work a PD model is proposed that improves two modeling aspects generally neglected in the literature: voltage/reactive power constraints and ramp rate constraints for generating units. Reactive power constraints turn the PD into a non-linear problem and the ramp rate constraints couple the problem dynamically in time domain. The solution of the PD is turned into a harder task when such constraints are introduced. The dual decomposition/ lagrangian relaxation technique is used in the solution approach for handing dynamic constraints. As a result the PD is decomposed into a series of independent Optimal Power Flow (FPO) sub problems, in which the reactive power is represented in detail. The solution of the independent FPO is coordinated by means of Lagrange multipliers, so that dynamic constraints are iteratively satisfied. Comparisons between dispatch policies calculated with and without the representation of ramp rate constraints are performed, using the IEEE 30 bus test system. The results point-out the importance of representing such constraints in the generation dispatch policy. © 2004 IEEE.en
dc.description.affiliationElectrical Engineering Department São Paulo State University UNESP, Bauru-SP, 17033-360
dc.description.affiliationUnespElectrical Engineering Department São Paulo State University UNESP, Bauru-SP, 17033-360
dc.format.extent633-638
dc.identifierhttp://dx.doi.org/10.1109/TDC.2004.1432453
dc.identifier.citation2004 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America, p. 633-638.
dc.identifier.doi10.1109/TDC.2004.1432453
dc.identifier.lattes2013445187247691
dc.identifier.lattes1713208286133403
dc.identifier.orcid0000-0002-7801-8505
dc.identifier.scopus2-s2.0-22744447441
dc.identifier.urihttp://hdl.handle.net/11449/67981
dc.identifier.wosWOS:000228358400112
dc.language.isoeng
dc.relation.ispartof2004 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectDual decomposition/lagrangian relaxation
dc.subjectHydrothermal power systems
dc.subjectPower generation dispatch
dc.subjectRamp rate constraints
dc.subjectCapacitors
dc.subjectCosts
dc.subjectDecomposition
dc.subjectElectric potential
dc.subjectElectric transformers
dc.subjectReactive power
dc.subjectElectric power generation
dc.titleAn active/reactive predispatch model incorporating ramp rate constraints solved by dual decomposition/lagrangian relaxationen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://www.ieee.org/publications_standards/publications/rights/rights_policies.html
dspace.entity.typePublication
unesp.author.lattes2013445187247691
unesp.author.lattes1713208286133403[2]
unesp.author.orcid0000-0002-7801-8505[2]
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Engenharia, Baurupt
unesp.departmentEngenharia Elétrica - FEBpt

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