Aspects of the disclosure include apparatuses and program products for recovering speed in a driveline assembly. An apparatus in one embodiment may include: a sensor measuring a shaft speed of a rotatable shaft within a driveline assembly, wherein the driveline assembly includes: a load coupled to t
Aspects of the disclosure include apparatuses and program products for recovering speed in a driveline assembly. An apparatus in one embodiment may include: a sensor measuring a shaft speed of a rotatable shaft within a driveline assembly, wherein the driveline assembly includes: a load coupled to the rotatable shaft, a primary power source coupled to the load through the rotatable shaft to deliver a first power output to the load, and a secondary power source coupled to the load through the rotatable shaft to deliver a second power output to the load, wherein the second power output is less than the first power output; and a controller in communication with the secondary power source and the sensor, wherein the controller increases the second power output in response to the shaft speed being less than a minimum speed threshold.
대표청구항▼
1. An apparatus comprising: a sensor measuring a shaft speed of a rotatable shaft within a driveline assembly, wherein the driveline assembly includes: a load coupled to the rotatable shaft,a gas turbine coupled to the load through the rotatable shaft to deliver a first power output to the load, and
1. An apparatus comprising: a sensor measuring a shaft speed of a rotatable shaft within a driveline assembly, wherein the driveline assembly includes: a load coupled to the rotatable shaft,a gas turbine coupled to the load through the rotatable shaft to deliver a first power output to the load, anda motor coupled to the load through the rotatable shaft to deliver a second power output to the load, wherein the second power output is less than the first power output; anda controller in communication with the motor and the sensor, wherein the controller increases the second power output based on an operating characteristic of the driveline assembly in response to the shaft speed being less than a minimum speed threshold, wherein the operating characteristic of the driveline assembly includes one of a fuel intake of the gas turbine, an exhaust temperature of the gas turbine, and a deceleration of the rotatable shaft. 2. The apparatus of claim 1, wherein the controller is further configured to modify a power set point of the motor. 3. The apparatus of claim 1, wherein the driveline assembly further includes a torque converter coupled to the motor and the rotatable shaft, and the controller further modifies a conversion factor of the torque converter to increase or decrease the second power output. 4. The apparatus of claim 3, wherein the controller modifies the conversion factor by one of opening and closing a plurality of guide vanes of the torque converter. 5. The apparatus of claim 1, wherein the controller is further configured to communicate a speed recovery mode algorithm to the secondary power source to increase the second power output. 6. The apparatus of claim 1, wherein the gas turbine maintains a constant fuel intake and exhaust temperature as the controller increases the second power output. 7. The apparatus of claim 1, wherein the gas turbine maintains a constant first power output as the controller increases the second power output. 8. The apparatus of claim 1, wherein the controller increases the second power output in response to the shaft speed being less than a shaft speed set point and a deceleration of the rotatable shaft exceeding a deceleration threshold, wherein the shaft speed set point is greater than the minimum speed threshold. 9. The apparatus of claim 1, wherein the load comprises a compressor. 10. A program product stored on a computer readable storage medium, the program product operative to recover speed in a driveline assembly when executed, the computer readable storage medium comprising program code for: comparing a shaft speed of a rotatable shaft of the driveline assembly with a minimum speed threshold, wherein the rotatable shaft mechanically couples a load to a gas turbine and a motor, the gas turbine delivering a first power output to the load and the motor delivering a second power output to the load less than the first power output; andincreasing a set point of the motor based on an operating characteristic of the driveline assembly in response to the shaft speed being less than the minimum speed threshold, wherein the operating characteristic of the driveline assembly includes one of a fuel intake of the gas turbine, an exhaust temperature of the gas turbine, and a deceleration of the rotatable shaft. 11. The program product of claim 10, further comprising program code for: determining whether the shaft speed is below a shaft speed set point, wherein the shaft speed set point is greater than the minimum speed threshold;comparing a deceleration of the rotatable shaft with a deceleration threshold; andincreasing the set point of the motor in response to the shaft speed being below the shaft speed set point and the deceleration of the rotatable shaft exceeding the deceleration threshold. 12. The program product of claim 10, wherein the increasing of the set point of the motor includes increasing a power set point of the motor. 13. The program product of claim 12, further comprising program code for converting a speed control algorithm of the motor from a speed recovery mode to a speed control mode in response to the second power output reaching the motor power set point. 14. The program product of claim 12, wherein the increasing of the power set point of the motor includes maximizing the power set point of the motor. 15. The program product of claim 12, wherein increasing the power set point of the motor includes converting a control algorithm of the motor from a speed mode to a power mode. 16. The program product of claim 10, further comprising program code for adjusting a guide vane position of a torque converter coupled between the motor and the rotatable shaft in response to the shaft speed being less than the minimum speed threshold. 17. The program product of claim 10, further comprising program code for decreasing the set point of the motor in response to the shaft speed exceeding the minimum speed threshold. 18. An apparatus comprising: a motor coupled to a torque converter, wherein the torque converter couples the motor to a load and a gas turbine through a rotatable shaft within a driveline assembly, and multiplies a power output of the motor to the rotatable shaft by a conversion factor; anda controller component of the motor in communication with the torque converter, wherein the controller component increases the conversion factor of the torque converter based on an operating characteristic of the driveline assembly in response to a shaft speed of the rotatable shaft being less than a minimum speed threshold, wherein the operating characteristic of the driveline assembly includes one of a fuel intake of the gas turbine, an exhaust temperature of the gas turbine, and a deceleration of the rotatable shaft. 19. The apparatus of claim 18, wherein the controller component of the motor increases the conversion factor in response to the shaft speed being less than a shaft speed set point and a deceleration of the rotatable shaft exceeding a deceleration threshold, wherein the shaft speed set point is greater than the minimum speed threshold.
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이 특허에 인용된 특허 (3)
Waddington Clive (Stratford CT), Integrated power system.
Mirsky Saul ; Staroselsky Naum ; Batson Brett W. ; Narayanan Krishnan, Prevention of parameter excursions during process compressor surge in gas turbines.
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