Systems, methods, and apparatus for determining steady state conditions in a gas turbine

A system for determining stability, comprising:

• a gas turbine;
• at least one memory for storing data and computer-executable instructions;
• and,
• at least one processor configured to access the at least one memory and further configured to execute the computer-executable instructions for:
• receiving a guide vane (VGV) command and a fuel stroke reference (FSR) command associated with the gas turbine;
• determining a filtered VGV change based at least in part on the received VGV command;
• determining a filtered FSR change based at least in part on the received FSR command;
• and,
• outputting a unit stability signal after a pickup delay time when the filtered VGV change is less than a predetermined VGV stability threshold and the filtered FSR change is less than a predetermined FSR stability threshold.

An apparatus for determining stability in a gas turbine, comprising:

• at least one memory for storing data and computer-executable instructions;
• and,
• at least one processor configured to access the at least one memory and further configured to execute the computer-executable instructions for:
• receiving a guide vane (VGV) command and a fuel stroke reference (FSR) command associated with a gas turbine;
• determining a filtered VGV change based at least in part on the received VGV command;
• determining a filtered FSR change based at least in part on the received FSR command;
• and,
• outputting a unit stability signal after a pickup delay time when the filtered VGV change is less than a predetermined VGV stability threshold and the filtered FSR change is less than a predetermined FSR stability threshold.