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

Energies

Yingjun Wu¹  Jun Xie¹  Hailong Wang¹  Rong Fu¹ 

[1] College of Automation, Nanjing University of Posts and Telecommunications, Nanjing 210023, China;

关键词: distributed control;    consensus protocol;    multi-agent system;    dynamic loads;    frequency regulation;   

DOI  :  10.3390/en8087930

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown