Automatisierungstechnik in der Mechatronik - zwei Beispiele aus der Stahlindustrie

Mechatronics, once started as a scientific and industrial experiment, has shown to be a well established scientific discipline with a broad industrial area of applications. Unchanged is the claim of Mechatronics to create a scientific discipline, which offers a new apprach to industrial and scientific problems by a synergetic integration of electrical and mechanical enigneering with control. Two examples from the field of steel manufacturing systems, namely a hydraulic actuator and a bridle roll device, are chosen in order to demonstrate how one can improve the system performance by linear and nonlinear control. The theory of PCH-sytems (port controlled Hamiltonian systems) is used in the nonlinear case, and a combination of partial input-output decoupling and H2-design is applied to the linear plant. The measurements of the hydraulic actuator and the simulations of the bridle roll systems demonstrate the performance of the closed loop. Of course, the presented controllers can easily be used for similiar plants. Furthermore, the presented ideas are transferable to similar or related problems in a straightforward manner.