Detecting rotor anomalies
First Claim
1. A system, comprising:
- at least one vibration sensor that obtains vibration measurements from a rotor during a transient speed operation;
an on-site monitoring unit, local to the at least one vibration sensor and the rotor, that monitors the vibration measurements during the transient speed operation, the on-site monitoring unit classifying the vibration measurements into one of a plurality of predetermined ranges of rotor speed during the transient speed operation, determining maximum vibration data for each of the plurality of predetermined ranges of rotor speed during the transient speed operation, and compiling the maximum vibration data into a snapshot of the vibration measurements obtained during the transient speed operation after the rotor completes the transient speed operation; and
a remote monitoring unit, remote from the at least one vibration sensor, the rotor and the on-site monitoring unit, that detects a rotor anomaly from the snapshot of vibration measurements generated by the on-site monitoring unit.
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Accused Products
Abstract
An approach for detecting rotor anomalies is disclosed. An on-site monitoring unit monitors vibration measurements obtained from a rotor during a transient speed operation. In one aspect, the on-site monitoring unit classifies the vibration measurements into predetermined ranges of rotor speed during the transient speed operation, determines maximum vibration data for each of the predetermined ranges of rotor speed during the transient speed operation and compiles the maximum vibration data into a snapshot of the vibration measurements obtained during the transient speed operation. A remote monitoring unit detects a rotor anomaly from the snapshot of vibration measurements generated by the on-site monitoring unit.
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Citations
20 Claims
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1. A system, comprising:
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at least one vibration sensor that obtains vibration measurements from a rotor during a transient speed operation; an on-site monitoring unit, local to the at least one vibration sensor and the rotor, that monitors the vibration measurements during the transient speed operation, the on-site monitoring unit classifying the vibration measurements into one of a plurality of predetermined ranges of rotor speed during the transient speed operation, determining maximum vibration data for each of the plurality of predetermined ranges of rotor speed during the transient speed operation, and compiling the maximum vibration data into a snapshot of the vibration measurements obtained during the transient speed operation after the rotor completes the transient speed operation; and a remote monitoring unit, remote from the at least one vibration sensor, the rotor and the on-site monitoring unit, that detects a rotor anomaly from the snapshot of vibration measurements generated by the on-site monitoring unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system for detecting rotor anomalies in real-time, comprising:
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a rotor; one or more operational sensors located about the rotor to measure operational data during a transient speed operation of the rotor, the operational data including rotor speed; at least one vibration sensor that obtains vibration measurements from the rotor during the transient speed operation; and a monitoring unit that detects a rotor anomaly based on the vibration measurements and the operational data obtained during the transient speed operation, wherein the monitoring unit classifies the vibration measurements into one of a plurality of predetermined ranges of rotor speed during the transient speed operation, determines maximum vibration data for each of the plurality of predetermined ranges of rotor speed during the transient speed operation, compiles the maximum vibration data into a snapshot of the vibration measurements obtained during the transient speed operation after the rotor completes the transient speed operation, and analyzes the snapshot of the vibration measurements to determine if the vibration measurements obtained during the transient speed operation is indicative of a potential a rotor anomaly. - View Dependent Claims (16, 17, 18, 19)
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20. A computer-readable storage device storing computer instructions, which when executed, enables a computer system to perform a method for detecting rotor anomalies, the method comprising:
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receiving vibration data obtained from a rotor during a transient speed operation; classifying the vibration data into one of a plurality of predetermined ranges of rotor speed during the transient speed operation; determining maximum vibration data for each of the plurality of predetermined ranges of rotor speed during the transient speed operation; in response to the rotor completing the transient speed operation, compiling the maximum vibration data into a snapshot of the vibration data obtained during the transient speed operation; and analyzing the snapshot of the vibration data to determine if the vibration measurements obtained during the transient speed operation is indicative of a rotor anomaly, the analyzing comprises performing one of ascertaining whether the snapshot of the vibration data is indicative of a potential detection of a rotor anomaly and comparing the snapshot of the vibration data obtained during the transient speed operation to historical vibration measurement snapshots obtained from a predetermined number of previous transient speed operations performed by the rotor in response to determining the potential detection of a rotor anomaly, and comparing the snapshot of the vibration data obtained during the transient speed operation to historical vibration measurement snapshots obtained from a predetermined number of previous transient speed operations performed by the rotor and determining whether the snapshot of the vibration measurements is exhibiting non-repeatable behavior in comparison to the historical vibration measurement snapshots obtained from the predetermined number of previous transient speed operations.
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Specification