Distributed dynamic feedback control for smart power networks with tree topology

Conference item

In this paper, we design a distributed dynamic feedback controller that implements real-time economic optimization in power networks with tree topology. We consider the coupling between the dynamics of the power network and the appropriately formulated optimization problem in the real-time market, i.e., when the time-scale separation between markets and network dynamics fades. The design methodology is motivated by optimization decomposition methods in that the controller is derived from a primal-dual decomposition approach. We then prove the asymptotic stability of the overall (closed-loop) system in a scalable fashion. The performance of the controller is illustrated by numerical investigations. © 2014 American Automatic Control Council.

Authors: Zhang, X; Papachristodoulou, A

• Publisher: Institute of Electrical and Electronics Engineers Inc.
• Host title: Proceedings of the American Control Conference
• Pages: 1156-1161
• Publication date: 2014-01-01
• DOI: 10.1109/ACC.2014.6858966
• ISSN: 0743-1619
• ISBN: 9781479932726
• Keywords: Power systems; Decentralized control; Nonlinear systems