DocumentCode :
646167
Title :
A decomposition approach to multi-region optimal power flow in electricity networks
Author :
Chasparis, Georgios C. ; Rantzer, Anders ; Jornsten, Kurt
Author_Institution :
Dept. of Autom. Control, Lund Univ., Lund, Sweden
fYear :
2013
fDate :
17-19 July 2013
Firstpage :
3018
Lastpage :
3024
Abstract :
We present a decomposition approach to a class of social welfare optimization problems for optimal power flow in multi-region electricity networks. The electricity network is decomposed into multiple regions which decide independently over the amount of power produced within the region and exchanged with neighboring regions. We decompose the overall power flow (or social welfare) optimization into region-based optimization problems (namely, power flow game), which is based on the introduction of dual variables representing nodal and link prices. Due to the interdependencies between regions´ utilities, the social welfare maximizer might not necessarily correspond to a Nash equilibrium of the power flow game. We derive conditions under which the social welfare maximizer is a Nash equilibrium of the game, and investigate uniqueness of Nash equilibria. Finally, we examine whether convergence to the social welfare maximizer may occur under natural best-response dynamics.
Keywords :
game theory; load flow; optimisation; power markets; pricing; Nash equilibria; Nash equilibrium; decomposition approach; electricity networks; link prices; multiregion electricity networks; multiregion optimal power flow; optimization power market; power flow game; region-based optimization problems; social welfare maximizer; social welfare optimization problems; Electricity; Games; Generators; Nash equilibrium; Optimization; Production; Resource management;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Control Conference (ECC), 2013 European
Conference_Location :
Zurich
Type :
conf
Filename :
6669573
Link To Document :
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