Sonderkolloquium: Prof. PhD Mario Paolone + Konstantina Christakou, DESL, École polytechnique fédérale de Lausanne

18.06.2014 von 14:00 bis 14:00

Titel : A Composable Method for the Real-Time Control of Active Distribution Networks with Explicit Power Setpoints

Abstract: The classic approach to the control of medium and low voltage distribution networks involves a combination of both frequency and voltage controls at different
time scales. With the increased penetration of stochastic resources, distributed generation and demand response, it shows severe limitations both in the optimal/safe operation of these networks as well as in aggregating the network resources for upper-layer power systems. To overcome this difficulty, we propose a radically different control philosophy, which enables low and medium voltage distribution networks as well as and their resources to directly communicate with each other in order to define explicit real-time setpoints for active/reactive power absorptions or injections. We propose a protocol for the explicit control of power flows and voltage, combined with a recursive abstraction framework. The method is composable, i.e. subsystems can be aggregated into abstract models that hide most of their internal complexity. Within this control framework we specifically analyze the case of a low-overhead decentralized Demand Response (DR) control mechanism, henceforth called Grid Explicit Congestion Notification (GECN), intended for deployment by distribution network operators (DNOs) to provide ancillary services to the grid by a seamless control of a large population of elastic appliances.
Contrary to classic DR approaches, the proposed scheme aims to continuously support the grid needs in terms of voltage control by broadcasting low-bit rate control signals on a fast time scale (i.e., every few seconds). Overall, the proposed DR mechanism is designed to i) indirectly reveal storage capabilities of end-customers and ii) have a negligible impact on the end-customer.

Speakers CVs
Mario Paolone was born in Italy, in 1973. He received the M.Sc. degree (with honors) in electrical engineering and the Ph.D. degree from the University of Bologna, Italy, in 1998 and 2002, respectively. In 2005, he was appointed Researcher in Electric Power Systems at the University of Bologna where he was with the Power Systems Laboratory until 2011. In 2010, he received Associate Professor eligibility from the Politecnico di Milano, Italy. Currently, he is Associate Professor at the Swiss Federal Institute of Technology, Lausanne, Switzerland, where he accepted the EOS Holding Chair of Distributed Electrical Systems Laboratory. He is secretary and member of several IEEE and Cigré Working Groups. He was co-chairperson of the technical committee of the 9th edition of the International Conference of Power Systems Transients. In 2013, he was the recipient of the IEEE EMC Society Technical Achievement Award. His research interests are in the area of power systems, with particular reference to real-time monitoring and operation, power system protections, power systems dynamics, and power system transients.

Konstantina Christakou was born in Greece, in 1987. In 2010, she graduated from the National Technical University of Athens, Greece. Since September 2011, she is pursuing the Ph.D. degree at École Polytechnique Fédérale de Lausanne (EPFL), Switzerland, where she is working under the joint supervision of Prof. Jean-Yves Le Boudec (LCA2) and Mario Paolone (DESL). Her current research interests include control and real-time operation of electrical grids with special reference to power distribution networks.

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