Abstract
It is well known from linear systems theory that an integral control law is needed for asymptotic set-point regulation under parameter perturbations. This note presents a similar result for a class of nonlinear systems in the presence of an unknown equilibrium due to uncertain non-linearities and dynamic uncertainties. Both partial-state and output feed- back cases are considered. Sufficient small-gain type conditions are identified for existence of linear and nonlinear control laws. A procedure for robust nonlinear integral controller design is presented and illustrated via a practical example of fan speed control.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1336-1342 |
| Number of pages | 7 |
| Journal | IEEE Transactions on Automatic Control |
| Volume | 46 |
| Issue number | 8 |
| DOIs | |
| State | Published - Aug 2001 |
Keywords
- Dynamic uncertainties
- Input-to-state stability
- Nonlinear systems
- Robust integral control
- Small-gain
ASJC Scopus subject areas
- Control and Systems Engineering
- Computer Science Applications
- Electrical and Electronic Engineering
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Cite this
Jiang, Z. P., & Mareels, I. (2001). Robust nonlinear integral control. IEEE Transactions on Automatic Control, 46(8), 1336-1342. https://doi.org/10.1109/9.940947