Fuzzy model predictive control based on modified fuzzy relational model

摘要

In this paper, a new approach to the fuzzy model predictive control (FMPC) is presented which is based on the modified fuzzy relational model (MFRM) introduced by Aghili and Menhaj. A comparison with PID and SMC control is provided to study the proficiency of the proposed FMPC. In this regard, DC-DC converter which has highly nonlinear characteristics is considered as the plant. First, the application of MFRM for the DC-DC converter modeling is demonstrated, and the model predictive control (MPC) is then developed for this system. The mentioned control strategies are implemented for regulating the step down DC-DC converter. Lastly, the robustness of the presented FMPC, in contrast to PID and SMC schemes is evaluated in different uncertainty conditions imposed on the output.