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dc.contributor.authorSchultis, Daniel-Leon
dc.contributor.authorIlo, Albana
dc.date.accessioned2019-07-24T12:36:52Z
dc.date.available2019-07-24T12:36:52Z
dc.date.issued2019-06-03
dc.identifier.isbn978-2-9602415-0-1
dc.identifier.issn2032-9644
dc.identifier.urihttps://cired-repository.org/handle/20.500.12455/15
dc.identifier.urihttp://dx.doi.org/10.34890/37
dc.description.abstractThe increasing penetration of rooftop PV-systems modifies the reactive power flow through the distribution transformer. Additionally, the dynamic behaviour of the low voltage grid is mainly defined by the dynamics of the PV-systems and load devices. This paper studies the reactive power response of low voltage grids with connected prosumers to a voltage dip provoked by a three-phase fault in the superordinate grid.  A detailed prosumer and PV-system model is used to analyse the reactive power contribution of a low voltage grid in stabilizing the situation during and after the fault. Three scenarios are considered: without PV-systems; with PV-systems; and with PV-systems upgraded with dynamic voltage support. Results show that, compared to the case without PV-systems, the integration of PV-systems increases the Q-flow from the medium into the low voltage grid and the voltages in low voltage grid.  If PV-systems are upgraded with dynamic voltage support, the low voltage grid behaviour changes during the voltage dip: it produces reactive power thus supporting the voltage recovery process of the superordinate grid, but simultaneously, it has lower voltages. Furthermore, the post-fault stabilization process in low voltage grid is significantly delayed in this case.
dc.language.isoen
dc.publisherAIM
dc.relation.ispartofseriesCIRED Conference Proceedings
dc.titleResponse of low voltage grids with connected prosumers to a voltage dip
dc.typeConference Proceedings
dc.description.conferencelocationMadrid, Spain
dc.relation.ispartProc. of the 25th International Conference on Electricity Distribution (CIRED 2019)
dc.contributor.detailedauthorSchultis, Daniel-Leon, TU Wien, Austria
dc.contributor.detailedauthorIlo, Albana, TU Wien, Austria
dc.date.conferencedate3-6 June 2019
dc.description.peerreviewedYes
dc.title.number408
dc.description.openaccessYes
dc.contributor.countryAustria
dc.contributor.countryAustria
dc.description.conferencenameCIRED 2019
dc.contributor.affiliationTU Wien
dc.contributor.affiliationTU Wien
dc.description.sessionOperation, control and protection
dc.description.sessionidSession 3


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