Load Frequency Control is one of the most essential frequency management technologies in modern power systems
(LFC). When employing LFC over a vast region, communication latency is unavoidable. A delay might not only affect system
performance but also cause system instability. An alternate design strategy for constructing delay compensators for LFC in one
or more control areas utilising an AFPI controller and ANFIS is proposed in this paper. For one-area LFC, a sufficient and
required condition for designing a delay compensator is described. It is demonstrated that for multi-area LFC with Area Control
Errors (ACEs), each control area can have its own delay controller designed as if it were a one-area system if the index of
coupling among the areas is less than the small gain theorem's threshold value.
