Distributed Event-triggered Control for Frequency Restoration in Islanded Microgrids with Reduced Trigger Condition Checking  

作　　者：Yulin Chen Donglian Qi Zhenming Li Zhenyu Wang Xinyi Yang Jianliang Zhang 

机构地区：[1]College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China

出　　处：《CSEE Journal of Power and Energy Systems》2024年第5期2156-2165,共10页中国电机工程学会电力与能源系统学报（英文）

基　　金：supported by the National Key Research and Development Program of China(Basic Research Class)(2017YFB0903000);the National Natural Science Foundation of China(U1909201).

摘　　要：For islanded microgrids(MGs),distributed control is regarded as a preferred alternative to centralized control for the frequency restoration of MGs.However,distributed control with successive communication restricts the efficiency and resilience of the control system.To address this issue,this paper proposes a distributed event-triggered control strategy for the frequency secondary control in islanded MGs.The proposed event-triggered control is Zeno behavior free and enables each DG to update and propagate its state to neighboring DGs only when a specific“event”occurs,which significantly reduces the communication burden.Compared with the existing event-triggered control,a trigger condition checking period of the proposed event-triggered control is provided to reduce the computation burden when checking the trigger condition.Furthermore,using the aperiodicity and intermittent properties of the communication,a simple detection principle is proposed to detect and isolate the compromised communication links in a timely and economic fashion,which improves the resilience of the system against FDI attacks.Finally,the control effectiveness of the proposed control scheme is validated by the simulation results of the tests on an MG with 4 DGs.

关 键 词：Distributed control event-triggered control islanded microgrid secondary control 

分 类 号：TM73[电气工程—电力系统及自动化]