H∞ Load Frequency Control of Power System Integrated With EVs Under DoS Attacks: Non-Fragile Output Sliding Mode Control Approach

This paper presents a novel non-fragile output sliding mode load frequency control (OSMLFC) strategy designed for multi-area interconnected power systems that incorporate electric vehicles (EVs), particularly in the presence of frequency-triggered denial-of-service (DoS) attacks. We delve into the realm of network communication security concerning load frequency control (LFC) power systems combined with EVs, investigating a real-time frequency-triggered DoS attack by combining real-time frequency dynamics with event-triggering mechanisms. A non-fragile output sliding mode control (SMC) method is proposed, strategically devised to balance the load and frequency aspects of the power systems. Then, a sufficient stability criterion is derived to ensure the non-fragile $H_\infty$ stability of the power system integrated with EVs, even when subjected to the perturbations caused by real-time frequency-triggered DoS attacks. The efficacy of our proposed approach and the characteristics of the real-time frequency-triggered DoS attacks are validated through extensive simulations.