Stabilizing Multimachine Systems with Decentralized and Nonlinear Feedbacks

Abstract Stabilization in multimachine (synchronous generators) power systems is dealt with through a class of decentralized and nonlinear state feedback laws that can be separately designed in a generator-wise fashion, based on what we call the improved swing equations. Stability of the closed-loop power systems is robust with regard to perturbations in electric torques happening in the synchronous generators. The stabilization algorithm consists of decentralized control laws, and provides us with many more freedoms for accomodating various control indices.