Methods and systems for detecting an oscillatory event
AssigneeGeneral Electric Company
InventorsScott Edward Sherman, John Rogers Huey
Life of this patent
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Abstract
Methods and systems for detecting an oscillatory event are provided. According to one embodiment, a system may include a controller configured to provide a command signal to a positioning device and a processor communicatively coupled to the controller. The command signal may include a reference position. The processor may be configured to monitor a feedback signal responsive to the command signal. The feedback signal may include an actual position of the positioning device. The processor may be further configured to determine that within a predetermined period of time the actual position is both above a predetermined upper threshold and below a predetermined lower threshold. Based on the determination, the processor may declare the oscillatory event.
Claims20
A method for detecting an oscillatory event, the method comprising:
- providing a command signal to a positioning device, the command signal including a reference position;
- monitoring a feedback signal responsive to the command signal, the feedback signal including an actual position of the positioning device;
- determining that within a predetermined period of time:
- the actual position is above a predetermined upper threshold;
- the actual position is below a predetermined lower threshold;
- and
- based at least in part on the determination, declaring the oscillatory event.
A system for detecting an oscillatory event, the system comprising:
- a controller configured to provide a command signal to a positioning device, the command signal including a reference position;
- and
- a processor communicatively coupled to the controller and configured to:
- monitor a feedback signal responsive to the command signal, the feedback signal including an actual position of the positioning device;
- determine that within a predetermined period of time:
- the actual position is above a predetermined upper threshold;
- the actual position is below a predetermined lower threshold;
- and
- based at least in part on the determination, declare the oscillatory event.
A system for detecting an oscillatory event in an actuator of a gas turbine, the system comprising:
- the gas turbine;
- the actuator coupled to the gas turbine;
- a controller configured to provide a command signal to the actuator, the command signal including a reference position;
- and
- a processor communicatively coupled to the controller and configured to:
- monitor a feedback signal responsive to the command signal, the feedback signal including an actual position of the actuator;
- determine that within a predetermined period of time:
- the actual position is above a predetermined upper threshold;
- the actual position is below a predetermined lower threshold;
- and
- based at least in part on the determination, declare the oscillatory event.
Dependencies are inferred from the claim text.