SMC CONTROL APPLIED TO A BUCK CONVERTER: COMPARISON TO A PID CONTROLLER

This paper aims to control the output voltage of a buck converter using a Sliding Mode Controller (SMC) on an AVR experimental setup. The controller has been implemented with SIMULINK followed by simulations in order to check its convergence and to compare SMC's robustness to PID's. We have shown that the designed SMC reaches convergence and is more robust than the classic PID controller. We also pointed out that the robustness of the SMC is widely variable from one noised parameter in the Buck converter model to another. Complementary work can be done to explain this variation of the robustness offered by the SMC.