Designing hybrid AC/DC transmission structures for large electricity systems
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Elektrotechnik & Informationstechnik https://doi.org/10.1007/s00502-020-00837-2
Designing hybrid AC/DC transmission structures for large electricity systems B. Klöckl, G. Deiml, C. Petino, W. Winter
This paper reviews ongoing planning for power-electronic-dominated power systems and for the technological implementation of multi-vendor multi-terminal HVDC transmission systems in hybrid AC/DC structures in Germany and Europe. Existing system needs and the possibilities to achieve embedded multi-terminal HVDC overlay grids are described. Additional research activities on technical topics in order to answer open research questions for the secure and reliable operation of power-electronic-dominated power systems are highlighted. The need for European cooperation including TSO, vendors and research institutes is described. As an example, simulation results are given and discussed with respect to multi-terminal HVDC planning options. Keywords: HVDC; hybrid AC/DC systems; power electronics; grid planning; stability
Das Design hybrider Drehstrom/Gleichstrom-Übertragungsstrukturen für große elektrische Energiesysteme. Dieser Beitrag beschreibt die Planungen zur Vorbereitung zukünftiger leistungselektronisch geprägter Energiesysteme und der Imple¨ in hybriden AC/DCmentierung von Multi-Vendor-Multiterminal-Funktionalitäten für Hochspannungsgleichstromübertragung (HGU) Systemen in Deutschland und Europa. Bestehende Systemanforderungen und die Möglichkeiten zur Eingliederung von MultiterminalHGÜ-Overlay-Netzen werden beschrieben. Weiterführende Forschungsaktivitäten zu technischen Fragestellungen rund um den sicheren und zuverlässigen Betrieb von leistungselektronisch dominierten Systemen werden herausgestellt. Die Notwendigkeit europäischer Zusammenarbeit zwischen Übertragungsnetzbetreibern, Herstellern und Forschungseinrichtungen wird beschrieben. Beispielhaft werden Simulationsergebnisse für Multiterminal-HGÜ-Systeme als Planungsoption diskutiert. Schlüsselwörter: HGÜ (Hochspannungsgleichstromübertragung); Leistungselektronik; Netzplanung; Stabilität
Received July 28, 2020, accepted September 30, 2020 © Springer-Verlag GmbH Austria, ein Teil von Springer Nature 2020
1. Introduction Energy sectors worldwide are currently experiencing a major transition in order to reach political objectives to reduce or even remove greenhouse gas emissions. A key element of this transition is the decarbonisation of the electric power system. In Europe, the full decarbonisation of the power sector is foreseen by the year 2050. Under such boundary conditions, a higher electrification of other sectors is expected resulting in considerable increase of electricity consumption and thus transport requirements. Although the increase of electricity generation from variable Renewable Energy Sources (RES) has to a certain degree successfully been achieved in many EU member states, further action is needed towards a carbon neutral power system. As one element, the massive deployment of offshore wind generation as well as long distance transport requi
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