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METHOD AND SYSTEM TO ESTIMATE VARIABLES IN AN INTEGRATED GASIFICATION COMBINED CYCLE (IGCC) PLANT
METHOD AND SYSTEM TO ESTIMATE VARIABLES IN AN INTEGRATED GASIFICATION COMBINED CYCLE (IGCC) PLANT
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机译:综合气化联合循环装置(IGCC)中变量估算的方法和系统
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摘要
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 co variance 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.
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