Blending of uncertain nonminimum-phase plants for elimination or reduction of nonminimum-phase property†
- 1 September 1979
- journal article
- research article
- Published by Taylor & Francis in International Journal of Systems Science
- Vol. 10 (9) , 1007-1024
- https://doi.org/10.1080/00207727908941638
Abstract
The benefits of feedback achievable in nonminimum-phase (nmp) systems are severely limited. However, if there are two parallel nmp branches whose outputs can be measured, then it may be possible to eliminate or reduce the nmp property with respect to some parts of the system, even if each of the two branches has uncertain parameters. It is always possible to do so for a finite, nonzero range of uncertainties for any complexity of pole-zero patterns of the branches. A design philosophy and methodology is presented for the general problem, permitting one to approach an optimum solution. under various constraints.Keywords
This publication has 2 references indexed in Scilit:
- Optimum synthesis of non-minimum phase feedback systems with plant uncertainty†International Journal of Control, 1978
- A synthesis theory for linear time-varying feedback systems with plant uncertaintyIEEE Transactions on Automatic Control, 1975