Campestrini, L.
[Universidade Federal do Rio Grande do Sul]
Eckhard, D.
[Universidade Federal do Rio Grande do Sul]
Gevers, Michel
[UCL]
Bazanella, A.S.
[Universidade Federal do Rio Grande do Sul]
Model reference control design methods fail when the plant has one or more non-minimum phase zeros that are not included in the reference model, leading possibly to an unstable closed loop. This is a very serious problem for data-based control design methods, where the plant is typically unknown. In this paper, we extend the Virtual Reference Feedback Tuning method to non-minimum phase plants. This extension is based on the idea proposed in Lecchini and Gevers (2002) for Iterative Feedback Tuning. We present a simple two-step procedure that can cope with the situation where the unknown plant may or may not have non-minimum phase zeros.
Bibliographic reference |
Campestrini, L. ; Eckhard, D. ; Gevers, Michel ; Bazanella, A.S.. Virtual Reference Feedback Tuning for non-minimum phase plants. In: Automatica, Vol. 47, no. 8, p. 1778-1784 (2011) |
Permanent URL |
http://hdl.handle.net/2078.1/89400 |