Feedforward and Feedback Control Design for Transport Systems


Dipl.-Ing. Simon Alt

Stefan Schaut, M.Sc.





The project focusses model based feedforward and feedback control designs for transport systems with spatially distributed control input. Examples for transport systems with a spatially acting input are conduit systems or conveyor belts in process and production industry, which are used for the transport of material between different process stages and conditioning of the convoyed goods at the same time. Technical applications are furnaces for the tempering of piece goods, gas-heated glassfeeders or hardening processes in steel industry. In all of these applications, heating or cooling devices are acting along the transport path.  

The control task is typically defined by the subsequent process stage and concerns for example start up processes and setpoint changes, which require to implement suitable control strategies.

For control design the transient input output behavior of transport systems has to be taken into account and requires model-based design approaches. The distributed acting control input results in a complex input output behavior which is governed by a distributed parameter model.

Based on suitable  system representations different feedforward and feedback control designs are implemented, i.e. inversion-based, flatness-based and optimal control strategies.

Journal publications
  • S. Alt, M. Zeitz & O. Sawodny, “Steuerungsentwurf von linearen Transportsystemen mit örtlich verteiltem Eingriff”, at - Automatisierungstechnik, 63, pp. 438-449, 2015, doi:10.1515/auto-2014-1147
Peer-reviewed conference publications
  • S. Alt, F. Malchow & O. Sawodny, “Compensation of Spatially Distributed Disturbances in Heat Conduction Systems”, IEEE International Conference on Automation Science and Engineering (CASE), 2014, pp. 860-865, doi:10.1109/CoASE.2014.6899426
  • S. Alt, I. Steinmetz & O. Sawodny, “Feedforward controller design for a spatially distributed transport system considering input constraints”, Control Automation Robotics and Vision, 2014, doi:10.1109/ICARCV.2014.7064467
  • S. Alt, F. Malchow & O. Sawodny, “Inversion Based Feedforward Control for Higher-Dimensional Parabolic Systems with Spatially Distributed Control Input”, IEEE Conference on Decision and Control (CDC), 2013, pp. 3732-3737, doi:10.1109/CDC.2013.6760458