Wind turbine fault detection using acoustic, vibration, and electrical signals
First Claim
1. A method for determining a fault condition for a component of a drivetrain in a wind turbine, comprising:
- detecting an audible acoustic signal with at least one acoustic signal measuring device positioned proximate to a mechanical component of the wind turbine;
detecting a vibration resulting from a rotation of a wind turbine component with at least one vibration signal measuring device positioned proximate to at least one of a drivetrain, a generator, or other device of the wind turbine,transmitting the acoustic signal and the vibration signal to a controller;
receiving the acoustic signal from the at least one acoustic signal measuring device;
receiving the vibration signal from the at least one vibration signal measuring device;
analyzing the acoustic signal to determine an analyzed acoustic signal by extracting an envelope from the acoustic signal and estimating a power spectral density for the acoustic signal;
analyzing the vibration signal to determine an analyzed vibration signal by extracting an envelope from the vibration signal and estimating a power spectral density for the vibration signal;
determining a fault condition for the component based at least in part on the analyzed acoustic signal and analyzed vibration signal; and
performing a corrective action for the wind turbine based at least in part on the fault condition.
3 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods for detecting faults are provided. A method for determining a fault condition for a component of a drivetrain in a wind turbine can include receiving an acoustic signal from an acoustic signal measuring device. The method can further include receiving a vibration signal from a vibration signal measuring device. The method can further include analyzing the acoustic signal to determine an analyzed acoustic signal. The method can further include analyzing the vibration signal to determine an analyzed vibration signal. The method can further include determining a fault condition for the component based at least in part on the analyzed acoustic signal and analyzed vibration signal. The fault condition can further be determined based at least in part on an analyzed electrical signal.
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Citations
20 Claims
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1. A method for determining a fault condition for a component of a drivetrain in a wind turbine, comprising:
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detecting an audible acoustic signal with at least one acoustic signal measuring device positioned proximate to a mechanical component of the wind turbine; detecting a vibration resulting from a rotation of a wind turbine component with at least one vibration signal measuring device positioned proximate to at least one of a drivetrain, a generator, or other device of the wind turbine, transmitting the acoustic signal and the vibration signal to a controller; receiving the acoustic signal from the at least one acoustic signal measuring device; receiving the vibration signal from the at least one vibration signal measuring device; analyzing the acoustic signal to determine an analyzed acoustic signal by extracting an envelope from the acoustic signal and estimating a power spectral density for the acoustic signal; analyzing the vibration signal to determine an analyzed vibration signal by extracting an envelope from the vibration signal and estimating a power spectral density for the vibration signal; determining a fault condition for the component based at least in part on the analyzed acoustic signal and analyzed vibration signal; and performing a corrective action for the wind turbine based at least in part on the fault condition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A control system, comprising:
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at least one acoustic signal measurement device positioned proximate to a mechanical component of a wind turbine and configured to detect an audible acoustic signal; an electrical signal measurement device; at least one vibration signal measurement device positioned proximate to at least one of a drivetrain, a generator, or other device of the wind turbine and configured to detect a vibration resulting from a rotation of the wind turbine component; and one or more processors and one or more memory devices configured to store instructions that when executed by the one or more processors cause the one or more processors to perform operations, the operations configured to; receive first data indicative of an audible acoustic signal from the at least one acoustic signal measurement device; receive second data indicative of a vibration signal from the at least one vibration signal measurement device; receive third data indicative of an electrical signal from the electrical signal measurement device; process the first data, second data, and third data by estimating a power spectral density for each respective data to determine a first processed data, a second processed data, and a third processed data; and determine a fault condition based at least in part on the first processed data, the second processed data, and the third processed data. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A wind turbine system, comprising:
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a wind turbine comprising a drivetrain, the drivetrain comprising a plurality of components, the plurality of components comprising a plurality of bearings, races, and gears; at least one acoustic signal measurement device positioned proximate to a mechanical component of the wind turbine and configured to detect an audible acoustic signal; an electrical signal measurement device; at least one vibration signal measurement device positioned proximate to at least one of a drivetrain, a generator, or other device of the wind turbine and configured to detect a vibration resulting from a rotation of the wind turbine component; and one or more processors and one or more memory devices configured to store instructions that when executed by the one or more processors cause the one or more processors to perform operations, the operations comprising; receive first data indicative of an audible acoustic signal from the acoustic signal measurement device; receive second data indicative of a vibration signal from the vibration signal measurement device; receive third data indicative of an electrical signal from the electrical signal measurement device; process the first data, second data, and third data by estimating a power spectral density and extracting one or more fault signature amplitudes for each respective data to determine a first processed data, a second processed data, and a third processed data; and determine a fault condition for at least one component in the plurality of components based at least in part on the first processed data, the second processed data, and the third processed data. - View Dependent Claims (18, 19, 20)
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Specification