CA2215032A1 - A method of optimal scaling of variables in a multivariable predictive controller utilizing range control - Google Patents
A method of optimal scaling of variables in a multivariable predictive controller utilizing range controlInfo
- Publication number
- CA2215032A1 CA2215032A1 CA002215032A CA2215032A CA2215032A1 CA 2215032 A1 CA2215032 A1 CA 2215032A1 CA 002215032 A CA002215032 A CA 002215032A CA 2215032 A CA2215032 A CA 2215032A CA 2215032 A1 CA2215032 A1 CA 2215032A1
- Authority
- CA
- Canada
- Prior art keywords
- variables
- manipulated
- values
- controlled
- calculated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title abstract 6
- 238000004886 process control Methods 0.000 abstract 2
Landscapes
- Feedback Control In General (AREA)
Abstract
A process control system which includes at least one manipulated variable and at least one controlled variable, provides a method for robust control of a process. Predetermined constraints of the manipulated variables and the controlled variables, and the present values of the manipulated variables are obtained. A set of scale factors for the manipulated variables and the process variables are calculated. The controller (10) is initialized with the set of scale factors, the scale factors determining the relative importance of the manipulated variables and the process variables to the process. New values are calculated for the controlled variables for a predetermined number of points in the future, such that the values of the controlled variables are within the predetermined range thereby obtaining an optimal robustness of the resultant controller. The manipulated variables are also calculated to be within predetermined constraints, and the controlled variables to fall within a predetermined range when controllable. From a plurality of solutions, a most robust solution is selected. Then the manipulated variables are adjusted to cause the process control system to drive the values of the controlled variables to the calculated values.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/415,882 | 1995-04-03 | ||
| US08/415,882 US5574638A (en) | 1995-04-03 | 1995-04-03 | Method of optimal scaling of variables in a multivariable predictive controller utilizing range control |
| PCT/US1996/004486 WO1996031811A1 (en) | 1995-04-03 | 1996-04-01 | A method of optimal scaling of variables in a multivariable predictive controller utilizing range control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2215032A1 true CA2215032A1 (en) | 1996-10-10 |
| CA2215032C CA2215032C (en) | 2006-02-07 |
Family
ID=35891708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002215032A Expired - Fee Related CA2215032C (en) | 1995-04-03 | 1996-04-01 | A method of optimal scaling of variables in a multivariable predictive controller utilizing range control |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2215032C (en) |
-
1996
- 1996-04-01 CA CA002215032A patent/CA2215032C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2215032C (en) | 2006-02-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20140402 |