Method and system to estimate variables in an integrated gasification combined cycle (IGCC) plant
Abstract
System and method to estimate variables in an integrated gasification combined cycle (IGCC) plant are provided. The system includes a sensor suite to measure respective plant input and output variables. An extended Kalman filter (EKF) receives sensed plant input variables and includes a dynamic model to generate a plurality of plant state estimates and a covariance matrix for the state estimates. A preemptive-constraining processor is configured to preemptively constrain the state estimates and covariance matrix to be free of constraint violations. A measurement-correction processor may be configured to correct constrained state estimates and a constrained covariance matrix based on processing of sensed plant output variables. The measurement-correction processor is coupled to update the dynamic model with corrected state estimates and a corrected covariance matrix. The updated dynamic model may be configured to estimate values for at least one plant variable not originally sensed by the sensor suite.
- Inventors:
- Issue Date:
- Research Org.:
- GE Global Research, Niskayuna, New York (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1093373
- Patent Number(s):
- 8538561
- Application Number:
- 13/053,690
- Assignee:
- General Electric Company (Niskayuna, NY)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01K - STEAM ENGINE PLANTS
G - PHYSICS G05 - CONTROLLING G05B - CONTROL OR REGULATING SYSTEMS IN GENERAL
- DOE Contract Number:
- FC26-07NT43094
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Kumar, Aditya, Shi, Ruijie, and Dokucu, Mustafa. Method and system to estimate variables in an integrated gasification combined cycle (IGCC) plant. United States: N. p., 2013.
Web.
Kumar, Aditya, Shi, Ruijie, & Dokucu, Mustafa. Method and system to estimate variables in an integrated gasification combined cycle (IGCC) plant. United States.
Kumar, Aditya, Shi, Ruijie, and Dokucu, Mustafa. Tue .
"Method and system to estimate variables in an integrated gasification combined cycle (IGCC) plant". United States. https://www.osti.gov/servlets/purl/1093373.
@article{osti_1093373,
title = {Method and system to estimate variables in an integrated gasification combined cycle (IGCC) plant},
author = {Kumar, Aditya and Shi, Ruijie and Dokucu, Mustafa},
abstractNote = {System and method to estimate variables in an integrated gasification combined cycle (IGCC) plant are provided. The system includes a sensor suite to measure respective plant input and output variables. An extended Kalman filter (EKF) receives sensed plant input variables and includes a dynamic model to generate a plurality of plant state estimates and a covariance matrix for the state estimates. A preemptive-constraining processor is configured to preemptively constrain the state estimates and covariance matrix to be free of constraint violations. A measurement-correction processor may be configured to correct constrained state estimates and a constrained covariance matrix based on processing of sensed plant output variables. The measurement-correction processor is coupled to update the dynamic model with corrected state estimates and a corrected covariance matrix. The updated dynamic model may be configured to estimate values for at least one plant variable not originally sensed by the sensor suite.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 17 00:00:00 EDT 2013},
month = {Tue Sep 17 00:00:00 EDT 2013}
}
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