System and method for simulating a gas turbine compressor
AssigneeGeneral Electric Company
InventorsJohn Benjamin Drohan, Randy Scott Rosson
Life of this patent
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Abstract
A method for simulating a compressor of a gas turbine may generally include determining a predicted pressure ratio and a predicted mass flow of the compressor based on a model of the gas turbine, monitoring an actual pressure ratio and an actual mass flow of the compressor, determining difference values between at least one of the predicted pressure ratio and the actual pressure ratio and the predicted mass flow and the actual mass flow, modifying the difference values using an error correction system to generate a compressor flow modifier and using the compressor flow modifier to adjust the predicted pressure ratio and the predicted mass flow.
Claims20
A method for simulating a compressor of a gas turbine, the method comprising:
- determining, with a processor, a predicted pressure ratio and a predicted mass flow of the compressor based on a model of the gas turbine;
- monitoring an actual pressure ratio and an actual mass flow of the compressor;
- determining, with the processor, difference values between at least one of the predicted pressure ratio and the actual pressure ratio and the predicted mass flow and the actual mass flow;
- modifying the difference values using an error correction system to generate a compressor flow modifier;
- using the compressor flow modifier to adjust the predicted pressure ratio and the predicted mass flow.
A method for simulating a compressor of a gas turbine, the method comprising:
- determining, with a processor, a predicted pressure ratio of the compressor based on a model of the gas turbine;
- using the predicted pressure ratio to determine a predicted mass flow of the compressor based on a compressor map of the model;
- monitoring an actual pressure ratio and an actual mass flow of the compressor;
- determining, with the processor, difference values between at least one of the predicted pressure ratio and the actual pressure ratio and the predicted mass flow and the actual mass flow;
- modifying the difference values using an error correction system to generate a compressor flow modifier;
- using the compressor flow modifier to adjust the predicted pressure ratio used with the compressor map to determine the predicted mass flow.
A system for simulating a compressor of a gas turbine, the system comprising:
- a plurality of sensors configured to monitor an actual pressure ratio and an actual mass flow of the compressor;
- a controller communicatively coupled to the plurality of sensors, the controller being configured to generate a predicted pressure ratio and a predicted mass flow of the compressor based on a model of the gas turbine, the controller being further configured to determine difference values between at least one of the predicted pressure ratio and the actual pressure ratio and the predicted mass flow and the actual mass flow, the controller being further configured to apply an error correction system to the difference values in order to generate a compressor flow modifier,
- wherein the compressor flow modifier is used by the controller to adjust the predicted pressure ratio and the predicted mass flow.
Dependencies are inferred from the claim text.