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
A distributed consensus based algorithm for economic dispatch over time‐varying digraphs
Ke Xu,Fanghong Guo,Gangfeng Yan +2 more
Proceedings ArticleDOI
Strategic Energy Trading Among Prosumers in a Smart Grid
TL;DR: In this paper , a game-theoretic approach is proposed to balance the monetary and energy transactions between users in a smart grid (SG) consisting of prosumers connected to an energy router that manages energy and monetary transactions.
Journal ArticleDOI
A Novel Bilateral Energy Trading Mechanism for Electricity Markets with Numerous Prosumers
Bing Liu,Furan Xie,L.S. Chai +2 more
TL;DR: In this paper , a multi-bilateral economic dispatch problem that maximizes the social welfare is formulated, taking into account product differentiation and network constraints, and an energy trading mechanism is devised to improve the scalability from two aspects: an accelerated distributed clearing algorithm with less exchanged information and faster convergence rate.
References
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Convex Optimization
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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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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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