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dc.contributor.authorSuul, Jon Are
dc.contributor.authorD'Arco, Salvatore
dc.contributor.authorRodríguez Cortés, Pedro
dc.contributor.authorMolinas Cabrera, Marta
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica
dc.date.accessioned2016-03-07T11:10:28Z
dc.date.issued2015
dc.identifier.citationSuul, J., D'Arco, S., Rodriguez, P., Molinas, M. Extended stability range of weak grids with Voltage Source Converters through impedance-conditioned grid synchronization. A: International Conference on AC and DC Power Transmission. "ACDC 2015: 11th IET International Conference on AC and DC Power Transmission: Edgbaston, Birmingham: Febrer 10-12, 2015:proceedings book". 2015, p. 1-10.
dc.identifier.urihttp://hdl.handle.net/2117/83877
dc.description.abstractThe stability range of power transfer in high impedance, weak, grids with Voltage Source Converters (VSC) can be extended a simple modification of the conventional Synchronous Reference Frame Phase Locked Loop (PLL) used for grid synchronization. By introducing an impedance-conditioning term in the voltage used by the PLL, the VSC control system is virtually synchronized to the voltage at a stronger point in the grid. By synchronization to the voltage behind the corresponding virtual impedance, the proposed approach can be utilized to influence the reactive power flow of the VSC in a way that will inherently enhance the power transfer capability of the high-impedance grid. To verify the impact of the proposed approach, an analytical model of a VSC HVDC terminal is used to calculate the achievable steady-state power transfer capability, as well as the range where small-signal stability is ensured, in a grid with low SCR when applying different levels of virtual impedance in the grid synchronization. The validity of the stability assessment based on the analytical model, and the increased stability range achieved with the proposed impedance-conditioned PLL, are also verified by time-domain simulations in the Matlab/Simulink environment.
dc.format.extent10 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència::Convertidors de corrent elèctric
dc.subjectÀrees temàtiques de la UPC::Energies::Energia elèctrica::Automatització i control de l'energia elèctrica
dc.subject.lcshPhase-locked loops
dc.subject.lcshElectric current converters
dc.subject.lcshImpedance (Electricity)
dc.subject.lcshReactive power (Electrical engineering)
dc.subject.othergrid impedance
dc.subject.othergrid synchronization
dc.subject.otherPhase Locked Loop (PLL)
dc.subject.otherstability limits
dc.subject.otherweak grids
dc.titleExtended stability range of weak grids with Voltage Source Converters through impedance-conditioned grid synchronization
dc.typeConference report
dc.subject.lemacLlaços de seguiment de fase
dc.subject.lemacConvertidors de corrent elèctric
dc.subject.lemacImpedància (Electricitat)
dc.contributor.groupUniversitat Politècnica de Catalunya. SEER - Sistemes Elèctrics d'Energia Renovable
dc.identifier.doi10.1049/cp.2015.0103
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7140571
dc.rights.accessOpen Access
drac.iddocument17553750
dc.description.versionPostprint (author's final draft)
dc.date.lift10000-01-01
upcommons.citation.authorSuul, J.; D'Arco, S.; Rodriguez, P.; Molinas, M.
upcommons.citation.contributorInternational Conference on AC and DC Power Transmission
upcommons.citation.publishedtrue
upcommons.citation.publicationNameACDC 2015: 11th IET International Conference on AC and DC Power Transmission: Edgbaston, Birmingham: Febrer 10-12, 2015:proceedings book
upcommons.citation.startingPage1
upcommons.citation.endingPage10


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