Distributed Detection Mechanism and Resilient Consensus Strategy for Secure Voltage Control of AC Microgrids  

作　　者：Lina Sheng Wei Gu Ge Cao 

机构地区：[1]School of Cyber Science and Engineering,Southeast University,Nanjing 211189,China [2]School of Cyber Science and Engineering,and the School of Electrical Engineering,Southeast University,Nanjing 210096,China [3]School of Electrical Engineering,Southeast University,Nanjing 210096,China

出　　处：《CSEE Journal of Power and Energy Systems》2023年第3期1066-1077,共12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(2020YFE0200400)。

摘　　要：Distributed secondary control,depending on the sparse communication topology,excels for its flexibility and expandability in microgrids.The communication network plays an important role in microgrid control,but it is vulnerable to cyber-attacks.In this paper,the mathematical model for false data injection(FDI)attacks in AC microgrids is established,and the corresponding detection mechanism based on the morphological gradient is designed for the location of cyber-attacks in communication topology.Then,we propose a median-based resilient consensus voltage control strategy to mitigate the negative effects caused by malicious cyber-attacks and ensure the safe operation of the microgrid.Combining the detection method and resilient consensus control,a novel eventdriven mitigation scheme is derived to improve the resilience of microgrids under cyber-attacks.Finally,a tested microgrid model composed of five different distributed generation(DG)units is simulated in the MATLAB/Simulink environment.The feasibility and effectiveness of the presented detection mechanism and resilient consensus strategy are verified by simulation results applying different scenarios.

关 键 词：Detection mechanism event-driven mitigation method FDI attacks microgrid voltage control resilient consensus control 

分 类 号：TM73[电气工程—电力系统及自动化]