The Application Of Consensus Of Multi-Agent System In Distributed Energy Storage System

As the focus on environmental issues increases,the widespread use of distributed generation(DG)based on renewable energy is one of the most effective solutions for achieving low carbon operation in the power industry.In recent years,microgrid has become a research hotspot in the field of renewable energy due to the effective integration of various types of DG,energy storage system(ESS)and load to achieve flexible,reliable and economic power supply.The coordinated and coordinated control of multi-agent system has been widely concerned and applied in many engineering fields.As the theoretical basis of the multi-agent system,the consensus problem has important practical and theoretical value.Different types of multi-agent consensus protocols reflect the different needs of multi-agent technology in various fields of application.This paper focuses on the application of multi-agent system consensus in ESSs,at the same time,time delay and how to reduce resource consumption are also considered.The main research contents of this paper include:Firstly,based on the event-driven mechanism and the consensus of multi-agent systems,using graph theory,matrix theory and Lyapunov theory,the control algorithm and event-driven function are designed to solve the BESS's state-of-charge(SoC)balancing control problem.The addition of an event-driven mechanism can effectively reduce the computation of the agent and the frequency of communication,thus greatly reducing communication bandwidth and energy.Secondly,in order to improve the control effect of the control strategy,by designing an n-step iterative state predictor and adding it to the control strategy as a compensation term,the convergence speed can be greatly improved and the time for the state to reach consensus can be reduced.Finally,in order to study the SoC balance with random time delay in communication networks,based on the above work,a algorithm based on random delay is proposed.And according to Lyapunov's stability conditions,an allowable delay limit is obtained.As long as the time delay condition is met,the algorithm can effectively solve the SoC balance problem with random time delay.