Technique for switching between controllers
US7515975B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 31, 2006 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Jul 25, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B7/02
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A controller design for switching between m linear multivariable controllers each of whom stabilizes a linear plant has been presented. A Youla-Kucera factorization was exploited in the interest of obtaining a closed-loop system that is exponentially stable for any switching signal σ(t) in the absence of plant model uncertainty. Robustness to practical model uncertainty was also considered and lower and upper bounds on the tolerable magnitude of unstructured additive plant uncertainty were presented. Numerical example demonstrated that the two controller degrees of freedom in the proposed controller design could be used to separately modify the closed-loop steady-state (with respect to σ(t)) performance and the switching transients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.