Title:
APPARATUS AND METHOD FOR AUTOMATED DATA SELECTION IN MODEL IDENTIFICATION AND ADAPTATION IN MULTIVARIABLE PROCESS CONTROL
Document Type and Number:
WIPO Patent Application WO/2013/170041
Kind Code:
A3
Abstract:
A computer-based apparatus and method for automated data screening and selection in model identification and model adaptation in multivariable process control is disclosed. Data sample status information, PID control loop associations and internally built MISO (Multi-input, Single-output) predictive models are employed to automatically screen individual time-series of data, and based on various criteria bad data is automatically identified and marked for removal. The resulting plant step test/operational data is also repaired by interpolated replacement values substituted for certain removed bad data that satisfy some conditions. Computer implemented data point interconnection and adjustment techniques are provided to guarantee smooth/continuous replacement values.
Inventors:
ZHAO HONG (US)
HARMESE MAGIEL J (US)
HARMESE MAGIEL J (US)
Application Number:
PCT/US2013/040363
Publication Date:
January 23, 2014
Filing Date:
May 09, 2013
Export Citation:
Assignee:
ASPEN TECHNOLOGY INC (US)
International Classes:
G05B13/04
Foreign References:
| US20080183311A1 | 2008-07-31 | |||
| GB2409293A | 2005-06-22 |
Attorney, Agent or Firm:
CARROLL, Alice, O. et al. (Brook Smith & Reynolds, P.c.,530 Virginia Rd, P.o. Box 913, Concord MA, US)
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