Distributed consensus-based economic dispatch considering grid operation

Conference paper (2018)

Authors

P.P. Vergara Barrios University of Southern Denmark, University of Campinas

Hamid R. Shaker University of Southern Denmark

Bo Norregaard University of Southern Denmark

Luiz Da Silva University of Campinas

Affiliation

External organisation

Microgrid Reactive power Distributed optimization Economic dispatch

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Published Date

2018

Language

English

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Abstract

In this paper, an optimal distributed approach is presented to solve the economic dispatch (ED) problem in an islanded microgrid. Active and reactive resources are taken into account in the optimization problem aiming to consider the operational requirements of the electrical system. The optimization framework is based on primal-dual constrained decomposition. Additionally, two consensus algorithms are develop to be executed in parallel by each unit, aiming to estimate locally the value of the dual variables. Convergence is guaranteed under the common convexity assumptions. Simulations were performed on the standard IEEE 30-bus system considering dispatchable and renewable generation units. The capability of the algorithm to responds in variations in load consumption, renewable generation and faults in units were assessed. Result shows the flexibility and effectiveness of the proposed approach.