Fuzzy tuned PID controller for power system stability

Abstract

This paper introduces a hybrid fuzzy based PID controller to improve the performance of power system stabilization. The inadequately damped electromechanical motions in power frameworks has been an issue to power engineers for quite a while. This restrains the ability of transfer of power in transmission lines and further incites worry in the mechanical shaft of machine. Owing to large scale interconnections and structured complexity of power systems, some disturbances arise which result in poorly damped low-frequency oscillations that don't damp out with time and at some occasions system is shaken out of equilibrium. The dynamics of this framework is additionally influenced by these oscillations at low frequency. The oscillations can be reduced and in turn the stability can be increased by proper design of controllers. The oscillations can be diminished and thus the solidness can be expanded by appropriate outline of controllers. The essential element of the proposed approach is plan of a fuzzy based PID controller (FPID) that uses a rearranged configuration. FPID controller, which exploits the properties of fuzzy PI and PD controllers, is proposed. This approach doesn't require exact learning of plant's characteristics for execution of the controller. The performance when compared with the conventional controllers, the results of fuzzy controller are quite encouraging and satisfactory.