Development Two Robust Approaches by Fuzzy-Sliding Mode Control

Abstract

To reduce the phenomenon of chattering, the major disadvantage of SMC, a lot of approaches have been proposed. In our work, we have introduced hybrids between fuzzy logic and sliding mode control to improve the regulation performance of DC motor. Two fuzzy–sliding (FSMC) approaches were proposed. The hybrids of these two theories allowed giving great robustness with a rapid dynamic response without overshoot, the rise time is good. Simulation and experimental results show that robust controls are highly responsive to conventional commands. In order to meet our needs and validate our results, we have developed a test bench where the engine is controlled using a digital processor called dSpace 1103, in which we have designed a program in real time. Some results are presented and their interpretations.