Please use this identifier to cite or link to this item:
http://hdl.handle.net/2282/399
|
| Title: | Modified Smith-predictor multirate control utilizing secondary process measurements |
| Authors: | Ergon, Rolf |
| Issue Date: | 2007 |
| Abstract: | The Smith-predictor is a well-known control structure for industrial time delay systems, where the basic idea is to
estimate the non-delayed process output by use of a process model, and to use this estimate in an inner feedback
control loop combined with an outer feedback loop based on the delayed estimation error. The model used may be
either mechanistic or identified from input-output data. The paper discusses improvements of the Smith-predictor
for systems where also secondary process measurements without time delay are available as a basis for the primary
output estimation. The estimator may then be identified also in the common case with primary outputs sampled at
a lower rate than the secondary outputs. A simulation example demonstrates the feasibility and advantages of the
suggested control structure. |
| Keywords: | Smith-predictor
Secondary outputs
Multirate control |
| Publisher: | Norsk forening for automatisering |
| Document type: | Journal article |
| URI: | http://hdl.handle.net/2282/399 |
| Appears in Collections: | Institutt for elektro, IT og kybernetikk
|
This item is protected by a usage licens. All items in TEORA are protected by copyright.
|
