Application of probabilistic control in gas turbine tuning for exhaust energy-fuel flow parameters, related control systems, computer program products and methods

摘要

Various embodiments include a system having: at least one computing device configured to tune a set of gas turbines (GTs) by performing actions including: commanding each GT in the set of GTs to a base load level, based upon a measured ambient condition for each GT; commanding each GT in the set of GTs to adjust a respective exhaust energy to match a nominal exhaust energy value, and subsequently measuring an actual fuel flow value for each GT; and adjusting an operating condition of each GT in the set of GTs based upon a difference between the respective measured actual fuel flow value and a nominal fuel flow value at the ambient condition.

主权项

1. A computing system comprising:
at least one computing device having at least one controller, the at least one computing device configured to tune each gas turbine in a set of a plurality of gas turbines based upon an exhaust energy parameter and a fuel flow parameter, wherein the at least one computing device is configured to:
command each gas turbine in the set to a respective base load level based upon a respective measured ambient condition;command each gas turbine in the set to adjust a respective actual value of the exhaust energy parameter of each gas turbine in the set to match a nominal value of the exhaust energy parameter of the set, and subsequently measure a respective actual value of the fuel flow parameter for each gas turbine in the set; andperform an adjustment to a respective operating parameter of each gas turbine in the set based upon a difference between the respective actual value of the fuel flow parameter and a nominal value of the fuel flow parameter at the respective measured ambient condition for each gas turbine in the set,wherein the adjustment to the respective operating parameter of each gas turbine in the set aligns each gas turbine in the set onto a first line in a graphical space plotting the exhaust energy parameter versus the fuel flow parameter,wherein the first line is orthogonal to a characteristic line in the graphical space, wherein the characteristic line is a mean characteristic line of all of the plurality of gas turbines in the set, at the respective base load level of each gas turbine in the set, plotting the exhaust energy parameter versus the fuel flow parameter.