Engine and electrical machine health monitoring
First Claim
1. A method for monitoring the health of at least one of a prime mover and an electrical machine coupled with the prime mover, the method comprising:
- pulsing the electrical machine to induce a change in torque on the electrical machine;
measuring a response to the change in torque on the electrical machine caused by pulsing of the electrical machine, the response indicative of a change in one or more operating parameters of the prime mover; and
determining a health estimate of at least one of the electrical machine and the prime mover based at least in part on the response.
1 Assignment
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Accused Products
Abstract
Systems and methods for estimating engine and electrical machine health are provided. The systems and methods therefore include features that provide for improved health estimates of one or more engines and/or electrical machines of one or more engines having an electrical machine embedded therein or coupled thereto. In particular, the systems and methods therefore include features for utilizing sensed or measured operating parameters of the electrical machines and/or operating parameters of the prime mover to estimate the health of the prime mover and/or the electrical machines embedded therein or coupled thereto.
20 Citations
20 Claims
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1. A method for monitoring the health of at least one of a prime mover and an electrical machine coupled with the prime mover, the method comprising:
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pulsing the electrical machine to induce a change in torque on the electrical machine; measuring a response to the change in torque on the electrical machine caused by pulsing of the electrical machine, the response indicative of a change in one or more operating parameters of the prime mover; and determining a health estimate of at least one of the electrical machine and the prime mover based at least in part on the response. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for monitoring the health of at least one of a prime mover and an electrical machine coupled with the prime mover, the method comprising:
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obtaining operating data indicative of one or more operating parameters of the electrical machine measured over a predetermined time during operation of the prime mover and the electrical machine; generating a parameter function based at least in part on the operating data, wherein the parameter function is indicative of at least one of the operating parameters of the electrical machine trended from a present time to at least a future time in which the parameter function intersects a predetermined threshold indicative of a value in which the electrical machine is no longer able to supply a predetermined power output to a load connected thereto; and determining a health estimate of at least one of the electrical machine and the prime mover based at least in part on the parameter function. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A gas turbine engine defining a radial direction and an axial direction, the gas turbine engine comprising:
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a compressor section, a combustion section, and a turbine section arranged in serial flow order, the compressor section, the combustion section, and the turbine section at least partially defining a core air flowpath; one or more sensors for sensing one or more operating parameters of the gas turbine engine during operation; a rotary component rotatable with at least one of a portion of the compressor section and a portion of the turbine section; a static frame member; an electric machine rotatable with the rotary component, the electric machine mounted to the static frame member or coupled to the rotary component, or both; a power source; and a health monitoring system comprising one or more computing devices communicatively coupled with the electrical machine and the one or more sensors, the one or more computing devices comprising one or more processors and one or more memory devices, the one or more memory devices storing instructions that when executed by the one or more processors cause the one or more processors to perform operations, the one or more computing devices configured to; cause the power source to pulse the electrical machine; obtain one or more signals from the one or more sensors indicative of a response to a change in torque on the electrical machine caused by pulsing the electrical machine via the power source, the response indicative of a change in one or more operating parameters of the gas turbine engine; compare the response to a baseline response; determine a delta between the response and the baseline response; and determine a health estimate of the gas turbine engine based at least in part on the delta between the response and the baseline response. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification