Optimal Control of Wind Farms for Coordinated TSO-DSO Reactive Power Management

verfasst von: David Sebastian Stock, Francesco Sala, Alberto Berizzi, Lutz Hofmann
Abstract: The growing importance of renewable generation connected to distribution grids requires an increased coordination between transmission system operators (TSOs) and distribution system operators (DSOs) for reactive power management. This work proposes a practical and effective interaction method based on sequential optimizations to evaluate the reactive flexibility potential of distribution networks and to dispatch them along with traditional synchronous generators, keeping to a minimum the information exchange. A modular optimal power flow (OPF) tool featuring multi-objective optimization is developed for this purpose. The proposed method is evaluated for a model of a real German 110 kV grid with 1.6 GW of installed wind power capacity and a reduced order model of the surrounding transmission system. Simulations show the benefit of involving wind farms in reactive power support reducing losses both at distribution and transmission level. Different types of setpoints are investigated, showing the feasibility for the DSO to fulfill also individual voltage and reactive power targets over multiple connection points. Finally, some suggestions are presented to achieve a fair coordination, combining both TSO and DSO requirements.
Organisationseinheit(en): Institut für Elektrische Energiesysteme
Externe Organisation(en): Politecnico di Milano
Fraunhofer-Institut für Windenergiesysteme (IWES)
Typ: Artikel
Journal: ENERGIES
Band: 11
ISSN: 1996-1073
Publikationsdatum: 01.2018
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Erneuerbare Energien, Nachhaltigkeit und Umwelt, Energieanlagenbau und Kraftwerkstechnik, Energie (sonstige), Steuerung und Optimierung, Elektrotechnik und Elektronik
Ziele für nachhaltige Entwicklung: SDG 7 – Erschwingliche und saubere Energie
Elektronische Version(en): https://doi.org/10.3390/en11010173 (Zugang: Offen)
https://doi.org/10.15488/3371 (Zugang: Offen)