Distributed Control of Networked Microgrid with Heterogeneous Energy Storage Units Considering Multiple Types of Time Delays  

作　　者：Guoxiu Jing Bonan Huang Rui Wang Chao Yang Qiuye Sun 

机构地区：[1]School of Information Science and Engineering,Northeastern University,Shenyang 110819,China [2]Information and Communication Branch,State Grid Liaoning Electric Power Company Ltd.,Shenyang 110004,China

出　　处：《Journal of Modern Power Systems and Clean Energy》2024年第6期1930-1941,共12页现代电力系统与清洁能源学报(英文)

基　　金：This work was supported in part by the National Key Research and Development Program of China(No.2018YFA0702200);the National Natural Science Foundation of China(No.52377079);the Liaoning Revitalization Talents Program of China(No.XLYC2007181);the Fundamental Research Funds for the Central Universities(No.N2204010).

摘　　要：This paper focuses on the distributed control prob-lem in a networked microgrid(NMG)with heterogeneous ener-gy storage units(HESUs)in the environment considering multi-ple types of time delays,which include the state,input,and communication delays.To address this problem,a state feed-back control(SFC)strategy based on nested predictor is pro-posed to mitigate the influence of multiple types of time delays.First,a distributed control method founded upon voltage ob-server is developed,which can realize proportional power distri-bution according to the state of charge(SOC)of the HESUs,while adjusting the average voltage of the point of common cou-pling(PCC)bus in the NMG to its rated value.Then,consider-ing that there exists steady-state error resulting from the initial value of the observer and impact of time delays,an SFC strate-gy is proposed to further improve the robustness of the NMG against time delays.Finally,the experimental results demon-strate that the proposed distributed control method is capable of fully compensating for the state,input,and communication delay.Moreover,the NMG exhibits remarkable resistance to multiple types of time delays,which has higher reliability and robustness.

关 键 词：Networked microgrid(NMG) heterogeneous energy storage unit(HESU) distributed control time delay 

分 类 号：G63[文化科学—教育学]