Modeling of Time-Delayed Distributed Cyber-Physical Power Systems for Small-Signal Stability Analysis

Compared with a power system under centralized control, fully distributed control has stronger interdependence between its physical side and cyber side. Such is typical cyber-physical (CPS). The time delay problem one of the most critical issues in application for systems. First, information flow model established considering multiple sources delay, especially communication neighboring agents. Second, combining dynamics systems, general time-delayed CPS proposed, inverter-based microgrids. Third, stability analyzed based on proposed eigenvalue tracking algorithm. A real-world microgrid DGs frequency tested small-signal analysis. findings show that depends not only absolute value delays but also coordination merging property mode relevant CPS. accuracy obtained margin are verified by Simulink simulations.