Reactive power grid adequacy studies for distribution grids with high distributed generation

Kraiczy, Markus

dc.date.accessioned	2021-01-19T12:07:11Z
dc.date.available	2021-01-19T12:07:11Z
dc.date.issued	2020
dc.identifier	doi:10.17170/kobra-202011102116
dc.identifier.uri	http://hdl.handle.net/123456789/12418
dc.description	Zugleich: Dissertation, Universität Kassel, 2020
dc.language.iso	eng
dc.publisher	kassel university press
dc.rights	Namensnennung 4.0 International	*
dc.rights.uri	http://creativecommons.org/licenses/by/4.0/	*
dc.subject.ddc	600
dc.title	Reactive power grid adequacy studies for distribution grids with high distributed generation	eng
dc.type	Buch
dcterms.abstract	The study aims to develop practicable grid planning procedures for an advanced reactive power management at the transmission-distribution (T-D) interface by making use of controllable reactive power sources at the distribution level, like distributed energy resources (DER) and reactive power compensators. In Germany, also the high voltage level is mainly considered as a part of distribution grid, and the T-D interface is determined at the interface between high voltage and extra high voltage level. A predefined reactive power range at the T-D interface is considered and the term reactive power grid adequacy is subsequently used, to describe the compliance level of the distribution level with the predefined reactive power range at the T-D interface. For this reason, the applicability of common methods in (active power) grid adequacy studies on research questions in reactive power grid adequacy studies are analyzed and discussed. The reactive power grid adequacy study is performed for a real German distribution grid section with very high distributed generation. In a first step, two different assessment approaches are developed, with a technical assessment, based on detailed annual power flow simulations, and a theoretical assessment, based on an analytic assessment of coincident measurement data at the T-D interface and the distributed generation. In a next step, the active and reactive power transfers at the T-D interface and the underlying substations are analyzed and relevant impact factors, correlations and dependencies are identified. Based on this assessment, the reactive power demand of the underlying distribution grid is characterized and an estimate on the future reactive power demand at the distribution level is provided. In a next step, transparent and practicable performance indicators for DER reactive power support at the T-D interface are developed and applied. The proposed performance indicator can be used to identify interesting DER types and DER reactive power capability characteristics for an advanced reactive power management at the T-D interface. Finally, a techno-economic assessment tool for the additional reactive power compensation demand at the distribution level is developed. The tool bases on a detailed assessment of the annual duration curve of the reactive power transfer at the T-D interface with or without DER reactive power support and enables a comprehensive sensitivity analysis of different cost and simulation assumptions. For the investigated case study, a relevant DER reactive power support potential at the T-D interface is determined and DER reactive power support could relevantly reduce the additional reactive power compensation demand at the distribution level. Nevertheless, the effectiveness of DER reactive power support is highly sensitive on the applied case study and depends among other things especially on the applied requirements at the T-D interface. The developed planning approaches can be adjusted for different requirements at the T-D interface and are applicable for different case study areas.	eng
dcterms.accessRights	open access
dcterms.creator	Kraiczy, Markus
dcterms.dateAccepted	202-05-11
dcterms.extent	xxi, 209 Seiten
dcterms.isPartOf	Energy Management and Power System Operation ;; Band 12	eng
dc.contributor.corporatename	Kassel, Universität Kassel, Fachbereich Elektrotechnik / Informatik
dc.contributor.referee	Braun, Martin (Prof. Dr.)
dc.contributor.referee	Stetz, Thomas (Prof. Dr.)
dc.contributor.referee	Hofmann, Lutz (Prof. Dr.)
dc.contributor.referee	Zacharias, Peter (Prof. Dr.)
dc.publisher.place	Kassel
dc.relation.isbn	978-3-7376-0885-5
dc.subject.swd	Energiemanagement	ger
dc.subject.swd	Energieversorgung	ger
dc.subject.swd	Dezentrale Elektrizitätserzeugung	ger
dc.subject.swd	Netzplanung	ger
dc.subject.swd	Gitternetz	ger
dc.type.version	publishedVersion
dcterms.source.series	Energy Management and Power System Operation
dcterms.source.volume	Band 12
kup.iskup	true
kup.order	https://www.genialokal.de/Produkt/Markus-Kraiczy/Reactive-power-grid-adequacy-studies-for-distribution-grids-with-high-distributed-generation_lid_44500353.html
kup.price	39,00	ger
kup.series	Energy Management and Power System Operation	eng
kup.subject	Naturwissenschaft, Technik, Informatik, Medizin
kup.typ	Dissertation
kup.institution	FB 16 / Elektrotechnik / Informatik
kup.binding	Softcover
kup.size	DIN A5