Interval Type-2 Fuzzy-Based Dynamic Event-Triggered Distributed Control for Multiarea Power Systems Against Hybrid Attacks
研究了多区域电力系统在拒绝服务和欺骗混合攻击下的动态事件触发分布式负载频率控制问题，提出新机制节省网络资源并设计模糊控制器保证系统稳定。
This article investigates the dynamic event-triggered distributed load frequency control (LFC) problem for interval type-2 (IT2) fuzzy-based multiarea power systems under hybrid malicious attacks, i.e., denial-of-service (DoS) attacks and deception attacks. Based on the acknowledgment (ACK) character technique, a new dynamic event-triggered mechanism (DETM) is proposed to further save network resources. Considering the uncertain nonlinearity in turbine and governor dynamics, a novel stochastic switching IT2 fuzzy power system model is built under hybrid attacks and DETMs. To achieve LFC, a distributed fuzzy controller is designed to incorporate the neighborhood information of power systems. Then, a novel piecewise Lyapunov functional is developed to make the closed-loop system mean-square exponentially stable with $H_{\infty }$ disturbance attenuation performance. With the developed three-step estimation method, the boundary information of membership function (MF) product terms is acquired and introduced into the stability analysis to reduce the conservativeness of stability conditions. Finally, three-area power systems are given to show the effectiveness of the distributed security control algorithm.