Journal ArticleDOI
Consensus-Based Energy Management in Smart Grid With Transmission Losses and Directed Communication
TLDR
A consensus-based algorithm is designed to solve the problem of distributed energy management for both generation and demand side in smart grid by taking transmission losses into account and it is proved the convergence and optimality of the proposed algorithm is achieved.Abstract:
This paper investigates the problem of distributed energy management for both generation and demand side in smart grid. Different from existing works, we formulate a social welfare maximization problem for a more practical scenario by taking transmission losses into account. The formulated problem is non-convex due to the non-convexity of the power balance equality constraint caused by the transmission losses. To solve the problem, we first transform the equality constraint into an inequality constraint and obtain a new convex optimization problem. We then derive a sufficient condition to guarantee that the new problem has the same solution as the original one. Because of the coupling in the constraint, Lagrange duality method is adopted to decompose the problem. Considering the general communication topology among generators and demands, i.e., directed connected topology, we design a consensus-based algorithm to solve the problem in a distributed way. We also prove the convergence and optimality of the proposed algorithm, under which the social welfare maximization is achieved. Extensive simulations validate the theoretical results and demonstrate the effectiveness of the proposed algorithm.read more
Citations
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Journal ArticleDOI
Consensus-Based Dispatch Optimization of a Microgrid Considering Meta-Heuristic-Based Demand Response Scheduling and Network Packet Loss Characterization
TL;DR: In this article , a consensus-based distributed algorithm is proposed for solving the complex energy management problem in micro-grids, which leverages the virulence optimization algorithm and the earthworm optimization algorithm to optimally shift the energy consumption during peak periods to lower-priced off-peak hours.
Journal ArticleDOI
Distributed economic dispatch method for power system based on consensus
TL;DR: The key links in the process of solving economic dispatch problem are summarised, and the advantages and disadvantages of the existing distributed economic dispatch algorithm are reviewed.
Journal ArticleDOI
Noncooperative Social Welfare Optimization With Resiliency Against Network Anomaly
TL;DR: A noncooperative game-theoretic framework to model the social welfare optimization (SWO) problem with load aggregators participating in integrated economic dispatch and demand response and has guaranteed convergence to a Nash equilibrium that is also a global optimizer is presented.
Journal ArticleDOI
Computation-Efficient Distributed Algorithm for Convex Optimization Over Time-Varying Networks With Limited Bandwidth Communication
TL;DR: A novel computation-efficient quantized distributed optimization algorithm is presented in this article for solving a class of convex optimization problems over time-varying undirected networks with limited communication capacity.
Journal ArticleDOI
Stochastic Electricity Social Welfare Enhancement Based on Consensus Neighbor Virtualization
TL;DR: The neighbor virtualization concept is employed to improve the system performance by introducing a novel communication structure for distributed algorithms to handle the energy management problem in the smart grids in the presence of dispatchable loads and distributed generators.
References
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Book
Convex Optimization
Stephen Boyd,Lieven Vandenberghe +1 more
TL;DR: In this article, the focus is on recognizing convex optimization problems and then finding the most appropriate technique for solving them, and a comprehensive introduction to the subject is given. But the focus of this book is not on the optimization problem itself, but on the problem of finding the appropriate technique to solve it.
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Journal ArticleDOI
Consensus seeking in multiagent systems under dynamically changing interaction topologies
Wei Ren,Randal W. Beard +1 more
TL;DR: It is shown that information consensus under dynamically changing interaction topologies can be achieved asymptotically if the union of the directed interaction graphs have a spanning tree frequently enough as the system evolves.
Journal ArticleDOI
Autonomous Demand-Side Management Based on Game-Theoretic Energy Consumption Scheduling for the Future Smart Grid
Amir-Hamed Mohsenian-Rad,Vincent W. S. Wong,Juri Jatskevich,Robert Schober,Alberto Leon-Garcia +4 more
TL;DR: This paper presents an autonomous and distributed demand-side energy management system among users that takes advantage of a two-way digital communication infrastructure which is envisioned in the future smart grid.
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