Patent ID: 9547294
Date: 2017-01-17
CPC Classifications: G05B,Y02E

Claim:
1. A system in a combined cycle power plant, the system comprising: a measurement device configured to measure one or more parameters of plant subsystems, the plant subsystems including a gas turbine and a steam turbine, wherein the one or more parameters comprise a gas turbine inlet guide van angle, a steam turbine rotor stress, a steam turbine eccentricity, and a steam turbine case temperature; a model processor comprising a physics-based model configured to provide a model output of plant performance based on the one or more parameters, the model processor considering an interconnection between outputs of the gas turbine and the steam turbine of the combined cycle power plant; a user input device configured to receive a desired steam turbine steam pressure from a user; a target performance determination unit configured to determine a target plant performance based at least on the desired steam turbine steam pressure; and a controller configured to control operation of the gas turbine based on the model output to achieve the target plant performance.