Application-Oriented Reactive Power Management in German Distribution Systems Using Distributed Energy Resources
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Beschreibung
Due to higher penetration of renewable energy sources, grid reinforcements, and the utilization of local voltage control strategies, a significant change in the reactive power behavior as well as an increased demand for additional reactive power flexibility in the German power system can be predicted. In this thesis, an application-oriented reactive power management concept is proposed, which allows distribution system operators (DSO) to enable a certain amount of reactive power flexibility at the grid interfaces while supporting voltage imitations in the grid. To evaluate its feasibility, the proposed concept is applied for real distribution grids in the south of Germany and is investigated comprehensively in different case studies. The results prove the feasibility and reliability of the proposed concept, which allows the DSO to control the reactive power exchange at grid interfaces without causing undesired local voltage problems. In addition, it can be simply adjusted and widely applied in real distribution grids without requiring high investment costs for complex information and communication infrastructures. As a significant contribution, this thesis provides an ideal bridging solution for DSOs who are facing reactive power issues but have no detailed and advanced monitoring system.
Autor*in
Haonan Wang
Themen in »Application-Oriented Reactive Power Management in German Distribution Systems Using Distributed Energy Resources«
decentralized energy resources distribution system grid interface reactive power management voltage problem