Comparison Between Predictive Sliding Mode Control and Sliding Mode Control with Predictive Sliding Function

This paper shows comparison between the Predictive Sliding Mode Controller (PSMC) and the Sliding Mode Controller with Predictive Sliding Function (SMC-PSF). The proposed controllers combine the design of Sliding Mode Control (SMC) with Model Predictive Control (MPC). This combination improves the performance of these two control laws. In fact, using a non-minimum phase system, the performances of the (PSMC) and the (SMC-PSF), in terms of strong robustness to external disturbance, parameters variation, chattering elimination and fast convergence were judged better, in comparison with SMC and MPC. Comparing the two controllers PSMC and SMC-PSF, the simulation results show that the SMC-PSF is more able to eliminate oscillations at the phase of convergence and at the presence of hard parameters variation.