Patent Document ID: 20130122433
Application ID: 13294175
Patent Flag: 0

Claim One:
1. A multivariable control system for controlling a plurality of burners of a boiler in a steam cycle system, comprising: a plurality of actuators affecting the operation of the burners; a plurality of sensors sensing control variable values in the boiler; a control system coupled to the actuators and the sensors and comprising a memory and a processor; and an application stored in the memory that, when executed by the processor executes a multivariable control algorithm to determine manipulated variable values to send to the actuators to control in part the burners while in-operation based on control variable data received from the sensors and based on a plurality of gain values and executes an adaptation algorithm while the burners are in-operation to change a manipulated variable value sent to one of the burners from a first value to a second value, to maintain the manipulated variable value at the second value for a pre-determined period of time, to determine a change of a control variable value received from the sensors, to return the manipulated variable value to the first value, to determine a gain value based on a difference between the first value of the manipulated variable and the second value of the manipulated variable and based on the change in control variable data received from the sensors, and to provide the determined gain value to the multivariable control algorithm.