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A Privacy-preserving Algorithm for ac microgrid Cyber-physical System Against False Data Injection Attacks

Journal of Modern Power Systems and Clean Energy 2023年第5期11卷 1646-1658页

作者： Jun Yang Yu Zhang College of Information Science and Engineering Northeastern UniversityShenyangChina Liaoning Provincial Transportation Planning and Design Institute Co. Ltd.ShenyangChina

A new privacy-preserving algorithm based on the Paillier cryptosystem including a new cooperative control strategy is proposed in this paper, which can resist the false data injection(FDI) attack based on the finite-time control theory and the data encryption strategy. Compared with the existing algorithms, the proposed privacy-preserving algorithm avoids the direct transmission of the ciphertext of frequency data in communication links while avoiding complex iterations and communications. It builds a secure data transmission environment that can ensure data security in the ac microgrid cyber-physical system(CPS). This algorithm provides effective protection for ac microgrid CPS in different cases of FDI attacks. At the same time, it can completely eliminate the adverse effects caused by the FDI attack. Finally, the effectiveness, security, and advantages of this algorithm are verified in the improved IEEE 34-node test microgrid system with six distributed generators(DGs) in different cases of FDI attacks.

关键词： ac microgrid cyber-physical system(CPS) distributed cooperative control false data injection(FDI)attack Paillier cryptosystem

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Distributed Mean-Square Consensus for microgrid Networks with Switching Topology

Distributed Mean-Square Consensus for Microgrid Networks wit...

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第40届中国控制会议

作者： Jingang Lai Xiaoqing Lu E.ON Energy Research Center RWTH Aachen University School of Electrical Engineering and Automation Wuhan University

This paper proposes a discrete-time distributed mean-square consensus cooperation scheme that can achieve DC bus voltage restoration and maintain proportional current sharing of DC microgrids in mean square via a sparse communication network subject to dynamic communication topology and multiplicative noise disturbances. The cyber networks are exposed to multiplicative noise disturbance and the switching of dynamic communication topologies, which terribly reduce the stability and quality of whole system. To eliminate the adverse effects of dynamic communication topology and Brownian noise disturbances,a robust state-dependent multiplicative noise-resiliency distributed resilient control algorithm is developed for DC microgrids.Through adopting stochastic stability theory and Lyapunov function, the sufficient conditions considering dynamic communication topology and noise interferences is derived to guarantee the stability operation of the whole closed-loop system. As a result the suggested method decreases the sensitivity of the system to failures and increases its reliability. Finally, a DC microgrid test system in MATLAB/SIMULINK is utilized to verify the effectiveness of the proposed controller design scheme.

关键词： distributed cooperative control multiagent communication network noise disturbance ac microgrid

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Distributed Power Sharing Control for Low-voltage microgrids Through Multiagent Networks Subject to Disturbances

Distributed Power Sharing Control for Low-voltage Microgrids...

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第37届中国控制会议

作者： Jingang Lai Xiaoqing Lu Xinghuo Yu Wei Yao Jinyu Wen Shijie Cheng School of Electrical and Electronic Engineering Huazhong University of Science and Technology Department of Automation Wuhan University School of Engineering RMIT University

This paper develops a stochastic distributed power sharing control for ac microgrids with massive current-controlled voltage source inverter（CCVSI）-based distributed generators（DG）. A novel distributed cooperative control strategy has been proposed achieve the accurate power sharing property among DGs in ac microgrids through multiagent networks subject to transmission time delays and noise disturbances. A Lyapunov-based stochastic distributed cooperative control protocols are designed for DGs, in which manner the criteria for the stability analysis and delays boundedness considering noise disturbances to maintain the system stable are derived. With the proposed control protocols, the accurate power sharing can be well achieved even if the communication delays may exist in noise environments. Moreover, the proposed control protocols are implemented through sparse communication networks and thus meet the plug-and-play feature of the future smart grid. Finally, the effectiveness of the proposed control strategy has been evaluated by offline time-domain simulations in MATLAB/Simulink environment.

关键词： distributed cooperative control multiagent communication network noise disturbance ac microgrid

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