Practical Stability and Event-Triggered Load Frequency Control of Networked Power Systems
研究了时滞系统的实用稳定性，利用Halanay不等式和Lyapunov方法推导弱实用稳定性条件，并应用于网络化电力系统的负荷频率控制，提出事件检测控制方案以减少通信负担。
Practical stability analysis for delayed systems is discussed. Weak practical stability conditions are derived by using Halanay’s inequality and the Lyapunov method. The results are applied to address the problem of practical stability of a power system over a delay-induced communication network. An event-detection-based control scheme is proposed to reduce the communication burdens. Based on the obtained practical stability conditions and the proposed event-detection scheme, sufficient practical stability conditions for load frequency control of a networked power system are given. Furthermore, a new design approach to the event-detection-based controller is presented. Finally, a numerical simulation is given to show the effectiveness and advantage of the obtained results.