Method and system for turbomachinery surge detection
A method and system for surge detection within a gas turbine engine, comprises: measuring the compressor discharge pressure (CDP) of the gas turbine over a period of time; determining a time derivative (CDP.sub.D ) of the measured (CDP) correcting the CDP.sub.D for altitude, (CDP.sub.DCOR); estimating a short-term average of CDP.sub.DCOR.sup.2 ; estimating a short-term average of CDP.sub.DCOR ; and determining a short-term variance of corrected CDP rate of change (CDP.sub.roc) based upon the short-term average of CDP.sub.DCOR and the short-term average of CDP.sub.DCOR.sup.2. The method and system then compares the short-term variance of corrected CDP rate of change with a pre-determined threshold (CDP.sub.proc) and signals an output when CDP.sub.roc >CDP.sub.proc. The method and system provides a signal of a surge within the gas turbine engine when CDP.sub.roc remains>CDP.sub.proc for pre-determined period of time.
- Research Organization:
- Honeywell International, Inc., Morristown, NJ (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC02-97EE50470
- Assignee:
- Honeywell International, Inc. (Morristown, NJ)
- Patent Number(s):
- 6,823,254
- Application Number:
- 10/402,210
- OSTI ID:
- 1175152
- Country of Publication:
- United States
- Language:
- English
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