An Adaptive Wide-Area Damping Control Scheme Considering Networked Induced Time Delays

This paper presents an adaptive time delay compensator design based on PMU signals for damping inter-area oscillations. Proposed design employs an adaptive switching period selection algorithm in order to provide near real-time delay compensation. Switching period is decreased adaptively when time delay characteristics change fast. For slow changing dynamics of time delay, the algorithm picks longer switching periods in order to prevent sustained oscillations. Benchmark model of the two area power system and a designed random delay model are employed for simulations. The algorithm is shown to be successful in tracking the fast changing dynamics of a communication network through simulations.