Real time implementation of interval type-2 fuzzy logic based damping controller for wind integrated power system

Abstract

In this paper, the real time simulation results using an interval type-2 fuzzy logic based damping controller of wind integrated power system is presented. The fundamental control block of the employed SATCOM includes the proposed damping controller to reduce the damping oscillations/fluctuations. Real time digital simulations (RTDS) are developed using OPAL-RT real time simulator in order to show the effectiveness of the proposed fuzzy control technique. The real time simulator (RTS) lab consists of two targets (processors). On first processor (target one) a typical wind power system has been implemented and on second processor an interval type-2 fuzzy logic algorithm is modelled and developed hence, hardware in loop (HIL) configuration is achieved. To evaluate the effectiveness of the proposed method by comparative analysis, three different scenarios (STATCOM-without damping controller, STATCOM-with type-1 FLC based damping controller and STATCOM-with interval type-2 FLC based damping controller) are considered subjected to various disturbances such as noise in wind speed and different types of network faults.