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US 8,297,835 B2Granted
Method and regulation system for monitoring a compressor of a gas turbine in particular
AssigneeSiemens Aktiengesellschaft
InventorsPaul Girbig, Michael Willsch
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Abstract
A regulation system for a compressor comprises a fiber-optic lattice sensor which makes it possible to determine a flow temperature of a fluid to be compressed by means of the compressor. Another aspect of the invention relates to a use of a fiber-optic Bragg lattice sensor as a temperature sensor in a regulation system.
Claims12
A method for monitoring cessation of a fluid flow of a gas turbine compressor, comprising:
- arranging a fiber-optic Bragg lattice sensor in the compressor fluid flow to monitor the temperature of the fluid flow to be compressed;
- sensing a temperature of the fluid flow to be compressed via the Bragg sensor;
- transmitting a signal of the Bragg sensor to a processing unit where the transmitted signal represents a temperature measurement value of the compressor fluid flow;
- analyzing the transmitted signal by the processing unit to determine a temperature rise from the temperature sensed by the Bragg sensor;
- and
- determining, by the processing unit, if an increase in temperature of the compressor fluid flow has occurred over a time period indicative that a flow cessation is imminent.
3 more elements
A regulation system configured to monitor cessation of a compressor flow of a gas turbine, comprising:
- a fiber-optic Bragg lattice sensor arranged in the flow stream of the compressor that measures the temperature of the flow during operation of the compressor to monitor the temperature of the fluid flow to be compressed;
- and
- a processing unit is configured to evaluate the measured flow temperature and determine if an increase in temperature of the compressor fluid flow has occurred over a time period indicative that a flow cessation is imminent.
Dependencies are inferred from the claim text.