Optimal feedforward compensators for systems with right-half plane zeros

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.

• Författare: Carlos Rodríguez; José Luis Guzmán; Manuel Berenguel; Tore Hägglund
• Avdelning/ar: Institutionen för reglerteknik
• Publiceringsår: 2014
• Språk: Engelska
• Sidor: 368-374
• Publikation/Tidskrift/Serie: Journal of Process Control
• Volym: 24
• Issue: 4
• Länkar: http://dx.doi.org/10.1016/j.jprocont.2014.02.014
• Dokumenttyp: Artikel i tidskrift
• Förlag: Elsevier
• Ämne: Control Engineering
• Nyckelord: Process control; Non-minimum phase dynamicsa; Disturbance rejection; Feedforward compensator
• Status: Published
• Projekt: PID Control; LCCC; PICLU; Decentralized Control Structures
• Forskningsgrupp: LCCC
• ISBN/ISSN/Övrigt: ISSN: 1873-2771