Position Control of Servo Drive System Based on Interval Type-2 Fuzzy Logic Algorithm

This paper is extension of major research of application of fuzzy logic for position control of precision electromechanical system specifically pointing and tracking system of telescope. Proposed interval type-2 fuzzy logic algorithm is evolution type-1 algorithm for improving the efficiency of a drive system due to the fact that in type-2 fuzzy systems membership functions are tridimensional and include in their entire period footprint of uncertainty. To prove the effectiveness of the presented method of fuzzy type-2 logic we compared it with the traditional PI controller. The obtained results show good steady-state and dynamic performance and workability of the presented algorithm.