Zusammenfassung: | |
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. © 2017 by the authors.
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Lizenzbestimmungen: | CC BY 4.0 Unported - https://creativecommons.org/licenses/by/4.0/ |
Publikationstyp: | Article |
Publikationsstatus: | publishedVersion |
Erstveröffentlichung: | 2018 |
Schlagwörter (englisch): | Active distribution system, Distributed generation, Grid ancillary services, Optimal power flow, Reactive power control, Smart grids, Transmission system, Voltage control, Wind power grid integration, Acoustic generators, Distributed power generation, Electric load flow, Electric power system interconnection, Electric power transmission, Electric power transmission networks, Electric utilities, Multiobjective optimization, Power control, Power management, Reactive power, Smart power grids, Transmissions, Voltage control, Wind power, Active distribution systems, Ancillary service, Optimal power flows, Smart grid, Transmission systems, Wind power grid integrations, Electric power system control |
Fachliche Zuordnung (DDC): | 620 | Ingenieurwissenschaften und Maschinenbau |
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