Process controller having adjustable parameters
Automatically generating a compensation factor for adjusting an operating parameter such that a measured carbon potential, dew point, or other controlled parameter matches the controller's set point value by inputting the measured parameter directly to the controller.
1 . A method of operating an endothermic gas generator, comprising:
measuring a dew point of gas within the generator;
providing the measured dew point to a controller, the controller coupled to the generator and configured to control one or more operating parameters of the generator based on a dew point set point;
generating, by the controller, a compensation factor based on the measured dew point;
transforming a numerical equation for calculating the compensation factor into a homogeneous form;
initializing the transformed equation based on a set of initial values;
after the transforming, iteratively solving the transformed equation to determine a value of the compensation factor that minimizes a difference between a set point value of at least one of one or more the operating parameters and a measured value of the at least one of the operating parameters;
adjusting at least one of the one or more operating parameters based on the compensation factor such that the measured dew point and the dew point set point are equal; and
controlling the operation of the endothermic gas generator based on the adjustment to the at least one of the one or more operating parameters.
2 . The method of claim 1 , further comprising providing an indication to the controller to store process data of the generator.
3 . The method of claim 2 , further comprising verifying the stored process data matches the measured dew point.
4 . The method of claim 1 , wherein a human machine interface is coupled to the controller, and the method further comprises:
receiving input from a user via the human machine interface; and
displaying the compensation factor to the user via the human machine interface.
5 . The method of claim 4 , further comprising receiving, via the human machine interface, an indication that the generated compensation factor is acceptable or unacceptable.
6 . The method of claim 5 , further comprising overwriting a previous value of the compensation factor with the generated compensation factor upon receiving, via the human machine interface, the indication that the generated compensation factor is acceptable.
7 . The method of claim 5 , further comprising discarding the generated compensation factor upon receiving, via the human machine interface, the indication that the generated compensation factor is unacceptable.
8 . The method of claim 1 , wherein the set point value is entered directly via a human machine interface that is coupled to the controller.
9 . The method of claim 1 , wherein the compensation factor is one or more of the following: CO factor, H2 factor, process factor, zone factor, gas factor, furnace factor, and calibration factor.
10 . A system for operating an endothermic gas generator, comprising:
a probe coupled to the generator configured to measure a dew point of gas within the generator; and
a controller coupled to the generator, the controller having a processor configured to:
receive the measured dew point;
control one or more operating parameters of the generator based on a dew point set point;
generate a compensation factor based on the measured dew point;
transform a numerical equation for calculating the compensation factor into a homogeneous form;
initialize the transformed equation based on a set of initial values;
after the transforming, iteratively solve the transformed equation to determine a value of the compensation factor that minimizes a difference between a set point value of at least one of one or more the operating parameters and a measured value of the at least one of the operating parameters;
adjust at least one of the one or more operating parameters based on the compensation factor such that the measured dew point and the dew point set point are equal; and
control the operation of the endothermic gas generator based on the adjustment to the at least one of the one or more operating parameters.
11 . The system of claim 10 , wherein the controller is configured to store process data of the generator.
12 . The system of claim 11 , wherein the controller is configured to verify the stored process data matches the measured dew point.
13 . The system of claim 10 , further comprising a human machine interface in communication with the controller, the human machine interface configured to receive input from a user and display the compensation factor to the user.
14 . The system of claim 13 , wherein the controller is configured to receive, via the human machine interface, an indication that the generated compensation factor is acceptable or unacceptable.
15 . The system of claim 14 , wherein the controller is configured to overwrite a previous value of the compensation factor with the generated compensation factor based on the indication that the generated compensation factor is acceptable.
16 . The system of claim 14 , wherein the controller is configured to discard the generated compensation factor based on the indication that the generated compensation factor is unacceptable.
17 . The system of claim 10 , wherein the set point value is entered directly via a human machine interface that is coupled to the controller.
18 . The system of claim 10 , wherein the compensation factor is one or more of the following: CO factor, H2 factor, process factor, zone factor, gas factor, furnace factor, and calibration factor.