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Robust Distillation Control – Application of H-infinity Loop Shaping
| Content Provider | Semantic Scholar |
|---|---|
| Author | Johnsen, Jørgen |
| Copyright Year | 2005 |
| Abstract | A control system for composition control of a distillation column is developed. For simulations and controller synthesis, a simpli ed rst-principles distillation column model is created. Model parameters are manually tuned to t the model to data from an experimental distillation column. For composition feedback to the controller, a temperature based composition estimator is constructed from experimental data. Robustness properties of two composition controllers, a PI controller and an H∞ loop shaping controller, are investigated. Simulations show that the H∞ controller is more robust to input gain perturbations and time delays. The pre-compensator in the H∞ loop shaping design is selected as a regular PI controller where controller gains are determined from the SIMC PI tuning rules. This way of selecting a pre-compensator makes loop shaping easier for the designer. Both of the controllers are successfully implemented on an experimental column. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://folk.ntnu.no/skoge/diplom/diplom05/johnsen/distillationControl.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
