Adaptive control system with efficiently constrained adaptation
US6094601A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 1, 1997 |
| Grant date | Jul 25, 2000 |
| Priority date | — |
| Expiry date | Oct 1, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K2210/512
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An adaptive control system implements a back-projection technique to limit adaptation of adaptive parameters in the system so that system actuators are not driven beyond desired physical limitations. When the optimal controller solution lies outside of a desired region in the parameter space, chosen in accordance with the physical limitations of the system, adaptation is back-projected onto or near a smooth convex surface defining the edge of the desired region. Adaptation is preferably normalized to improve adaptation convergence. Back-projection is preferably compensated in accordance with adaptation normalization to facilitate convergence. To lessen computational burdens, adaptation and/or back-projection is accomplished in accordance with a time-sharing technique in which orthogonal components are separately processed. The technique can be implemented in tonal control systems, and in systems capable of controlling non-periodic disturbances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.