Load Frequency Control of Multiarea Interconnected Power Systems With Time Delays

Abstract

Finite-dimensional decentralized controller design methods are developed for load-frequency control of interconnected multiarea power systems subject to time delays. Each service area may contain different types of governors and turbines, and are subject to different time delays. The controllers proposed for each service area are simple to implement, and they offer freedom in the design parameters, which may be used to improve achievable system performance. They also have integral action so that the frequency deviation outputs due to constant load disturbances go to zero asymptotically.