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Optimal feedforward compensators for systems with right-half plane zeros

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Author

  • Carlos Rodríguez
  • José Luis Guzmán
  • Manuel Berenguel
  • Tore Hägglund

Summary, in English

Feedforward from measurable disturbances is a powerful complement to feedback control to improve disturbance rejection capability. Recent works have remarked the necessity of a design strategy for those cases where the ideal feedforward controller is not realizable. In this paper, a simple shaping design procedure is presented together with straightforward rules to obtain optimal feedforward controllers for the case when the ideal compensator is not realizable due to right-half plane zeros in the process dynamics. Finally, some simulations and a robustness analysis demonstrate the benefits of the proposed tuning rules.

Publishing year

2014

Language

English

Pages

368-374

Publication/Series

Journal of Process Control

Volume

24

Issue

4

Document type

Journal article

Publisher

Elsevier

Topic

  • Control Engineering

Keywords

  • Process control
  • Non-minimum phase dynamicsa
  • Disturbance rejection
  • Feedforward compensator

Status

Published

Project

  • PID Control
  • LCCC
  • PICLU
  • Decentralized Control Structures

Research group

  • LCCC

ISBN/ISSN/Other

  • ISSN: 1873-2771