Delay-Dependent Stability Analysis of Load Frequency Control Systems With Electric Vehicles
研究了含电动汽车的单区域负荷频率控制系统的时滞相关稳定性，提出了两种闭环模型和两个时滞相关稳定性判据，以获得更精确的可容许时滞上界，并揭示了其与PI控制器增益及电动汽车参数的关系。
This article investigates the problem of delay-dependent stability for the one-area load frequency control (LFC) system with electric vehicles (EVs). Two closed-loop models of the LFC system with EVs are proposed, including the model based on the model reconstructed technique and the model with uncertain parameters that considers state of charge. By employing the Lyapunov-Krasovskii functional method, two delay-dependent stability criteria are presented for the systems under study such that a more accurate admissible delay upper bound (ADUB) can be obtained. Case studies are finally carried out to disclose the interrelationship between the ADUB, PI controller gains, and other parameters of the EVs.