Alstom Technology Limited

General Electric Technology Gmbh

Combustion Engineering, Inc.

Carl H Neuschaefer

Xinsheng Lou

Carl R Bozzuto

Armand A Levasseur

Thomas D Williams

Abhinaya Joshi

George D Mylchreest

Matthew David Allen

Joseph E Kowles

Chuan Wang

Shizhong Yang

Peter W Rzasa

Frank Glazer

Michael Chris Tanca

Armand Alfred Levasseur

Carl Bozzuto

A method for operating a combustion chamber is provided. The method includes introducing a fuel into the combustion chamber via a plurality of nozzles, each nozzle having an associated stoichiometry for an output end of the nozzle. The method further includes measuring the stoichiometry of each nozzle via one or more sensors to obtain stoichiometric data, and determining that at least one of a frequency and an amplitude of spectral line fluctuations derived from the stoichiometric data has exceeded a threshold. The method further includes adjusting the stoichiometry of at least one of the nozzles based at least in part on the stoichiometric data so as to maintain a flame stability of the combustion chamber.

System and method for operating a combustion chamber

A method for controlling at least one operational parameter of a plant () having a combustion unit () can include estimating a status of at least one operational variable of the plant to identify an estimated value for the operational variable. For each operational variable, the estimated value for the operational variable can be compared with a measured value of the operational variable to determine an uncertainty value based on a difference in value between the measured value and the estimated value for the operational variable. A control signal can be generated based on a reference signal, the measured value, and the deviation value for sending to at least one element of the plant () for controlling a process of the plant ().

Apparatus and method for controlling at least one operational parameter of a plant

A control system () for optimizing a chemical looping process of a power plant includes an optimizer (), an income algorithm () and a cost algorithm () and a chemical looping process models. The process models are used to predict the process outputs from process input variables. Some of the process in puts and output variables are related to the income of the plant; and some others are related to the cost of the plant operations. The income algorithm () provides an income input to the optimizer () based on a plurality of input parameters () of the power plant. The cost algorithm () provides a cost input to the optimizer () based on a plurality of output parameters () of the power plant. The optimizer () determines an optimized operating parameter solution based on at least one of the income input and the cost input, and supplies the optimized operating parameter solution to the power plant.

Integrated controls design optimization

A system for optimizing and controlling a circulating fluidized bed combustion (FBC) system () and an air pollution control (APC) system () includes a controller () and an optimizer (). The controller () is connected to the FBC system () and/or the APC system (). The optimizer () is connected to the controller (). The optimizer () provides an optimized setpoint () to the controller () based on an economic parameter () and system outputs () from the FBC system () and the APC system (). The controller () provides an optimized input () to the FBC system () and/or the APC system () based on the optimized setpoint () from the optimizer () to optimize operation of the FBC system () and/or the APC system ().

Modeling and control optimization system for integrated fluidized bed combustion process and air pollution control system

The video image of the end effector (26) and work surface (32) in the vicinity of the end effector is converted into a series of continually generated digitized images (132), which are further processed to detect and track the relative motion between the end effector and the work surface. After calibration (126), whereby an index of coordinates and arm orientation is established for a known positioning of the end effector relative to a known reference feature (28a) on the work surface, the tracking (168) of the motion of the end effector is utilized to continually update the index (104) to indicate the actual coordinate and orientation of the end effector relative to the work surface. The updated index is displayed on a live video monitor (44), and can be used as input to the feedback circuit (94) of the manipulator control system. In another embodiment of the invention, a high resolution monitor (52) displays an image of substantially the entire work surface, and particularly the features of interest, in the nature of a work surface map, and superimposes thereon a visual indication of the location, orientation and movement of the end effector, using the updated index information.

Machine vision system for position sensing

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Enfield, CT, United States of America

Carl H Neuschaefer