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Title: 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
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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 = {2013},
month = {9}
}

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