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 DDS-Based Energy Management Framework for Small Microgrid Operation and Control
TL;DR: The developed real-time energy management system for microgrids or nanogrids was emulated with actual residential energy consumption and irradiance data from Miami, Florida, and proved its effectiveness in reducing consumers’ bills and achieving flat peak load profiles.
Journal ArticleDOI
A Finite-Time Distributed Optimization Algorithm for Economic Dispatch in Smart Grids
TL;DR: A finite-time consensus-based distributed optimization algorithm is proposed to solve EDP and it is only required that each device in the communication network has access to its own local generation cost function, designed virtual local demand and its neighbors’ local optimization variables.
Journal ArticleDOI
False data injection attack on consensus-based distributed estimation
TL;DR: Security issues for consensus‐based distributed estimation problem in a sensor network, where an attacker with limited power injects random false data into the communication links so as to degrade the network performance, is considered.
Journal ArticleDOI
Power Compensation of Network Losses in a Microgrid With BESS by Distributed Consensus Algorithm
TL;DR: A novel distributed consensus algorithm is proposed to compensate the missing power through the discharging process of BSUs, and the state of charge (SOC) of BESS is also considered to ensure the completely compensation of the whole transmission losses.
Journal ArticleDOI
Distributed Real-Time Economic Dispatch in Smart Grids: A State-Based Potential Game Approach
Yile Liang,Feng Liu,Shengwei Mei +2 more
TL;DR: It is revealed that the stationary-state Nash equilibrium of the SPG exactly identifies the global optimum of the constrained C-RTED problem.
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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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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