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Energies 2015, 8(8), 7930-7944; doi:10.3390/en8087930

A Distributed Control Strategy for Frequency Regulation in Smart Grids Based on the Consensus Protocol

College of Automation, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
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Academic Editor: William Holderbaum
Received: 29 April 2015 / Revised: 9 July 2015 / Accepted: 23 July 2015 / Published: 31 July 2015
(This article belongs to the Special Issue Control of Energy Storage)
View Full-Text   |   Download PDF [414 KB, uploaded 31 July 2015]   |  

Abstract

This paper considers the problem of distributed frequency regulation based on the consensus control protocol in smart grids. In this problem, each system component is coordinated to collectively provide active power for the provision of ancillary frequency regulation service. Firstly, an approximate model is proposed for the frequency dynamic process. A distributed control algorithm is investigated, while each agent exchanges information with neighboring agents and performs behaviors based on communication interactions. The objective of each agent is to converge to a common state considering different dynamic load characteristics, and distributed frequency control strategy is developed to enable the agents to provide active power support. Then, the distributed proportional integral controllers with the state feedback are designed considering the consensus protocol with topology . The theory of distributed consensus protocol isfurther developed to prove the stability of the proposed control algorithm. Whenproperly controlled, the controllers can provide grid support services in a distributed manner that turn out the grid balanced globally. Finally, simulations of the proposed distributed control algorithm are tested to validate the availability of the proposed approach and the performance in the electrical networks. View Full-Text
Keywords: distributed control; consensus protocol; multi-agent system; dynamic loads; frequency regulation distributed control; consensus protocol; multi-agent system; dynamic loads; frequency regulation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Fu, R.; Wu, Y.; Wang, H.; Xie, J. A Distributed Control Strategy for Frequency Regulation in Smart Grids Based on the Consensus Protocol. Energies 2015, 8, 7930-7944.

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