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Distributed routing algorithms to manage power flow in agent-based active distribution network

Phuong Nguyen ; Wil Kling ; Giorgos Georgiadis (Institutionen för data- och informationsteknik, Nätverk och system, Datakommunikation och distribuerade system (Chalmers)) ; Marina Papatriantafilou (Institutionen för data- och informationsteknik, Nätverk och system (Chalmers) ) ; Tuan Le (Institutionen för energi och miljö, Elteknik) ; Lina Bertling (Institutionen för energi och miljö, Elteknik)
IEEE PES Conference on Innovative Smart Grid Technologies Europe, Gothenburg, Sweden, October 10-13, 2010 (2010)
[Konferensbidrag, refereegranskat]

The current transition from passive to active electric distribution networks comes with problems on bi-directional power flow in the network and the uncertainty in the forecast of power generation from grid-connected renewable and distributed energy sources. The power flow management would need to be distributed, flexible, and intelligent in order to cope with these challenges. Considering the optimal power flow (OPF) problem as a minimum cost flow represented with the graph, this paper applies a cost-scaling push-relabel algorithm in order to solve the OPF in a distributed agent environment. The algorithm’s performance is compared with the successive shortest path algorithm developed in our previous work. The simulation is implemented for both meshed and radial networks. The simulation results have shown the advantages of the cost- scaling push-relabel algorithm over the shortest path algorithm in the radial networks with respect to significantly reduced number of exchanged messages on the agent platform, and thus the reduced time for calculation. This will be of great importance if the method is to be applied to a large system.

Nyckelord: Active distribution network, Costs-caling, Graph theory, Multi-agent system, Optimal power flow, Push-relabel, Smart grid



Denna post skapades 2010-08-13. Senast ändrad 2011-01-11.
CPL Pubid: 124496

 

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