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US 11,143,055 B2Granted
Method of monitoring a gas turbine engine to detect overspeed events and record related data
AssigneeSolar Turbines Incorporated
InventorsEduardo Bravo, Brian J. Taylor, John S. Bowen, Bruno E. Struck, Hyun D. Kim, Frederick B. Lorenz
Life of this patent
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Abstract
A control system for a gas turbine engine is disclosed. In embodiments, control system includes a controller and a high speed recorder. The controller obtains a sensor value from a sensor connected to the gas turbine engine and publishes a tag that includes the type of event, the sensor value, and a timestamp. The high speed recorder checks the tag for an overspeed event. If an overspeed event is detected, the high speed recorder records values provided by the tag.
Claims20
A method of monitoring a gas turbine engine, the method comprising:
- logging a gas producer rotor speed obtained from a sensor and a timestamp associated with the gas producer rotor speed;
- detecting a start of an overspeed event if the gas producer rotor speed exceeds a trigger threshold;
- in response to detecting the start of the overspeed event, detecting an end of the overspeed event if the gas producer rotor speed falls below a setpoint threshold;
- in response to detecting the overspeed event, generating a tag to include an overspeed event value, the gas producer rotor speed, and the timestamp;
- reading the tag which includes the overspeed event value;
- and
- in response to reading the tag which includes the overspeed event value, recording a plurality of tags including the overspeed event value, the gas producer rotor speed, the timestamp, from the start of the overspeed event to the end of the overspeed event.
4 more elements
A method of monitoring a gas turbine engine, the method comprising:
- logging a gas producer rotor speed obtained from a sensor and a timestamp associated with the gas producer rotor speed;
- detecting a start of a level one overspeed event if the gas producer rotor speed exceeds a level one trigger threshold, a start of a level two overspeed event if the gas producer rotor speed exceeds a level two trigger threshold, and start a level three overspeed event if the gas producer rotor speed exceeds a level three trigger threshold,
- in response to detecting the start of the level one overspeed event, detecting an end to the level one overspeed event if the gas producer rotor speed is less than a level one setpoint threshold;
- in response to detecting the start of the level two overspeed event, detecting an end to the level two overspeed event if the gas producer rotor speed is less than a level two setpoint threshold;
- in response to detecting the start of the level three overspeed event, detecting an end to the level three overspeed event if the gas producer rotor speed is less than a level three setpoint threshold;
- in response to detecting the level one overspeed event, generating a tag to include a level one overspeed event value, the gas producer rotor speed, and the timestamp;
- in response to detecting the level two overspeed event, generating the tag to include the level one overspeed value, a level two overspeed event value, the gas producer rotor speed, and the timestamp;
- in response to detecting the level three overspeed event, generating the tag to include the level one overspeed value, the level two overspeed value, a level three overspeed event value, the gas producer rotor speed, and the timestamp;
- reading a plurality of tags which include the level one overspeed event value, the level two overspeed event value, and the level three overspeed event value;
- and
- in response to reading the plurality of tags, recording a plurality of tags including the level one overspeed event value, level two overspeed event value, level three overspeed event value, the gas producer rotor speed, and the timestamp.
8 more elements
A control system for monitoring a gas turbine engine, the control system comprising:
- a sensor connected to the gas turbine engine;
- one or more processors configured to
- log a gas producer rotor speed obtained from the sensor and a timestamp associated with the gas producer rotor speed;
- detect a start of an overspeed event if the gas producer rotor speed exceeds a trigger threshold;
- in response to detecting the start of the overspeed event, detect an end of the overspeed event if the gas producer rotor speed falls below a setpoint threshold;
- in response to detecting the overspeed event, generate the tag to include an overspeed event value, the gas producer rotor speed, and the timestamp;
- read the tag including the overspeed event value;
- and
- in response to reading the tag, record a plurality of tags including the overspeed event value, the gas producer rotor speed, and the timestamp, from the start of the overspeed event to the end of the overspeed event.
6 more elements
Dependencies are inferred from the claim text.