A Distributed Augmented Lagrangian Method over Stochastic Networks for Economic Dispatch of Large-Scale Energy Systems

A Distributed Augmented Lagrangian Method over Stochastic Networks for Economic Dispatch of Large-Scale Energy Systems

Ananduta, W. (TU Delft Team Bart De Schutter)
Ocampo-Martinez, Carlos (Universitat Politecnica de Catalunya)
Nedic, Angelia (Arizona State University)

2021

In this paper, we propose a distributed model predictive control (MPC) scheme for economic dispatch of energy systems with a large number of active components. The scheme uses a distributed optimization algorithm that works over random communication networks and asynchronous updates, implying the resiliency of the proposed scheme with respect to communication problems, such as link failures, data packet drops, and delays. The distributed optimization algorithm is based on the augmented Lagrangian approach, where the dual of the considered convex economic dispatch problem is solved. Furthermore, in order to improve the convergence speed of the algorithm, we adapt Nesterov's accelerated gradient method and apply the warm start method to initialize the variables. We show through numerical simulations of a well-known case study the performance of the proposed scheme.

Acceleration
Communication networks
Economics
Index terms -economic dispatch
model predictive control
multi-agent optimization
Optimization
Predictive control
Production
Stochastic processes
stochastic time-varying network

http://resolver.tudelft.nl/uuid:8f220e48-add5-4063-9c74-8f5b8688789d

https://doi.org/10.1109/TSTE.2021.3073510

1949-3029

IEEE Transactions on Sustainable Energy, 12 (4), 1927-1934

Accepted Author Manuscript

Institutional Repository

journal article

© 2021 W. Ananduta, Carlos Ocampo-Martinez, Angelia Nedic