IP Library Granted Patent US 12710729
Granted Patent B2
US 12710729 · App. 18/734,561 · Granted Aug 18, 2026

Process controller having adjustable parameters

Inventor: Samuel Roberts (Littlehampton, GB)
Assignee: Eurotherm Limited
G05B13/021F27D19/00G05B15/02G05B19/0428F27D2019/0012F27D2019/0018F27D2019/0028
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Quick Facts
Patent No.
US 12710729
App. No.
18/734,561
Granted
Aug 18, 2026
Kind
B2
Abstract

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.

Claims (38)

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.