Robust control solutions for some classes of hysteretic processes

The paper proposes a combined feedforward - feedback control scheme with nonlinear compensator as a solution for some classes of hysteretic processes. This is developed using the nonlinear geometric characteristic of the process and a classical robust control algorithm. The design methods for the components of the proposed structure are based on experimental tests, classic identification and closed loop pole placement methods. The applicability of the proposed method and of other recent methods is proved using a real-time structure implementation based on a RST control algorithm. A comparison between them and the analysis on advantages and disadvantages was made. In the end, its software implementation and the obtained results are also showed and commented.