A gossip-based asynchronous distributed algorithm for economic dispatch problem with transmission losses

Considering the transmission losses of power, this paper proposes a gossip-based distributed algorithm to solve the economic dispatch problem in smart grids. Unlike the existing works, two contributions are introduced. The supply-demand constraint of the economic dispatch problem includes transmissi...

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Bibliographic Details
Published in:IEEE Innovative Smart Grid Technologies--Asia pp. 770 - 775
Main Authors: Wang, Rui, Li, Qiqiang, Shi, Yang, Wang, Luhao
Format: Conference Proceeding
Language:English
Published: IEEE 01.05.2019
Subjects:
Communication networks
consensus
Convergence
Distributed algorithm
Distributed algorithms
economic dispatch problem
Economics
Generators
Propagation losses
smart grid
Smart grids
transmission losses
ISSN:2378-8542
Online Access:Get full text
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Summary:Considering the transmission losses of power, this paper proposes a gossip-based distributed algorithm to solve the economic dispatch problem in smart grids. Unlike the existing works, two contributions are introduced. The supply-demand constraint of the economic dispatch problem includes transmission losses. The amount of transmission losses induced by each generator can be represented as a quadratic function, which introduces nonlinear constraints in the economic dispatch problem. However, the existing algorithms do not handle this issue. On the other hand, the proposed algorithm is based on gossip algorithm, which implies that only two nodes are activated randomly to exchange their information at each time slot. Therefore, the algorithm does not need to simultaneously delivery information between all nodes, which will increase the risk of information congestion and the computing burden of controllers. Simulation results illustrate that the convergence of the algorithm and compared with the centralized algorithm, the effectiveness of the algorithm is shown.
ISSN:2378-8542
DOI:10.1109/ISGT-Asia.2019.8881641