LFC of Three Area Power System with hyHS-RS Tuned T2-Fuzzy Controller in Constraint to Eoconomic Dispatch

This article demonstrates a research work on load frequency control (LFC) of a multi generating station based three area power system in concern to the Economic load dispatch (ELD). Both the action of LFC and ELD are obtained in a common platform with employing a noble fuzzy type-2 controller under a disturbance of step load perturbation of 2%. The controller has an advantages of highly accessing area since the concerned membership function creates a three dimensional structure as per its process. Further, this controller handles the huge uncertainty of power system smoothly due to its 3D structure. This enables to this controller for providing improved control performances as compared to the standard type-1 fuzzy controller and conventional PID controller. Since the outcomes of the controller largely depends upon the selection of proper parameter, this study has applied a novel hybridized harmony search and random search (hyHA-RS) technique for optimal gain formulation of this type-2 fuzzy controller. The optimal property of the suggested hyHS-RS techniques also has been examined over original random search and harmony search algorithms by simulated responses and results. Finally, it is concluded that applied hyHS-RS tuned T2-Fuzzy controller is much effective to obtain LFC and ELD in a common power system scenario.