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Changing dynamics of power systems caused by the large-scale penetration of renewable energy sources and a different behaviour of future distribution networks increase the risk of large-scale blackouts due to voltage collapse, especially in case of unforeseen network conditions (e.g., (N-k)-cases). To enable a both secure and efficient power supply, novel emergency control systems are required that...
Increasing uncertainties in power system operation require novel approaches for utilizing operational flexibility to enable a both secure and efficient power supply. This paper presents a real-time coordination approach for adaptive redispatch of generation and load in case of overloads in the electrical transmission network. For this, a previously developed multi-agent system for coordinating power...
Increasing complexity and uncertainty of power system operation have led to a rising interest in decentralized control concepts as a complement or alternative to centralized control. For decision-making on appropriate control actions, such approaches need to perform analyses of the system state and the estimated impact of control actions basing on limited system information. Thus, it has to be ensured...
Managing uncertainties becomes a major challenge in power systems with a high penetration of volatile generation and load. On the contrary, the controllability of the transmission system increases due to the evolution of a smart grid and more flexible technologies. In this paper a methodology for analyzing the impact of uncertainties and operational flexibility in the context of different market coupling...
Due to highly volatile feed-in by renewable energy sources (RES), a large amount of potential controls in future smart grids as well as the striving for gains in efficiency, power system operation becomes increasingly complex. This complexity is a particular challenge for real-time operation as centralized optimizations of the non-linear system are computationally intensive and rely on adequate data...
(N−1)-security is a decisive impact factor on both transmission system operation and network planning as it constrains the permissible states of the grid. Ensuring an (N−1)-secure operation and planning is a particular challenge in the presence of uncertainties. The inefficiency due to constrained network operation can be alleviated by fast corrective actions, e.g. by FACTS devices, HVDC or phase...
Die Betriebsführung elektrischer Transport- und Verteilnetze wird zunehmend dynamischer. Gründe hierfür sind einerseits die Herausforderungen durch hoch ausgelastete Netze sowie volatile Einspeisung, auf die die Netzbetreiber rechtzeitig reagieren müssen, andererseits der zunehmende Einsatz schnell regelbarer Betriebsmittel und leistungsstarker Kommunikations- und Informationstechnik. Um intelligente...
With the rise of smart grid technologies, the interdependencies of ICT and power systems become increasingly important in both transmission and distribution networks. For the design of time-critical applications, simulation tools for an integrated analysis of these domains are needed. In the case of electrical transmission systems, high-performance ICT solutions and fast controllable power equipment...
As operation of electrical transmission systems faces new challenges due to liberalization and integration of renewable energies, novel solutions for power system management are needed. At the same time, the development of smart grids also pushes high performance communication and information technology that contribute decisively in enabling a dynamic monitoring, protection and control of large-scale...
A key component of task preparation may be to anticipate the consequences of task‐appropriate actions. This task switching study examined whether such type of “intentional” preparatory control relies on the presentation of explicit action effects. Preparatory BOLD activation in a condition with task‐specific motion effect feedback was compared to identical task conditions with accuracy feedback only...
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