Hybrid modeling and control of power systems with PSS operating over wide range of operating conditions

Conventional LTI models for power systems suffer from huge limitation due to wide range of operating complexity such as load variation and parameter variation. In this paper, for such systems a modeling approach using switching scheme is proposed by considering two power subsystems with two PSS controllers. Stability of switched system is shown by existence of common quadratic Lyapunov function by numerically solving LMIs.