A gas turbine engine includes a compressor, a combustor adjacent the compressor, a turbine adjacent the combustor, a shaft, a motor, a variable frequency drive, a stored energy source and a ride thru unit. The motor is coupled to the shaft. The variable frequency drive is electrically connected to t
A gas turbine engine includes a compressor, a combustor adjacent the compressor, a turbine adjacent the combustor, a shaft, a motor, a variable frequency drive, a stored energy source and a ride thru unit. The motor is coupled to the shaft. The variable frequency drive is electrically connected to the motor and to an AC power source. The ride thru unit electrically connects to the variable frequency drive, the AC power source and the stored energy source. The ride thru unit includes at least one DC to DC voltage converter.
대표청구항▼
1. A gas turbine engine, comprising: a compressor including a compressor rotor assembly including a plurality of compressor disk assemblies;a combustor adjacent the compressor;a turbine adjacent the combustor, the turbine including a turbine rotor assembly including a plurality of turbine disk assem
1. A gas turbine engine, comprising: a compressor including a compressor rotor assembly including a plurality of compressor disk assemblies;a combustor adjacent the compressor;a turbine adjacent the combustor, the turbine including a turbine rotor assembly including a plurality of turbine disk assemblies;a shaft coupled to the compressor rotor assembly and at least one turbine disk assembly;a motor coupled to the shaft;a variable frequency drive electrically connected to the motor and to an AC power source and configured to slow roll the gas turbine engine at shutdown, the variable frequency drive including an AC to DC voltage converter and a DC to AC voltage converter;a stored energy source; anda ride thru unit electrically connected to the variable frequency drive, the AC power source and the stored energy source, the ride thru unit including at least one DC to DC voltage converter, operable to monitor an AC power of the AC power source, and provide power from the stored energy source to the variable frequency drive through the ride thru unit when an interruption or loss of the AC power is detected while the shaft is turned with the motor for a predetermined amount of time after shutdown of the gas turbine engine; anda lube oil system including a lube oil variable frequency drive;wherein the lube oil variable frequency drive is electrically connected to the ride thru unit and the ride thru unit is further configured to provide power from the stored energy source to the lube oil variable frequency drive through the ride thru unit up to a second predetermined amount of time when an interruption or loss of the AC power is detected during operation of the gas turbine engine, and shut down the gas turbine engine when the interruption or loss of the AC power lasts longer than the second predetermined amount of time. 2. The gas turbine engine of claim 1, wherein the at least one DC to DC voltage converter is configured to convert the power from the stored energy source to 510 VDC when the AC power is detected and convert the power from the stored energy source to 560 VDC when the AC power is not detected. 3. The gas turbine engine of claim 1, wherein the predetermined amount of time is from four to five hours. 4. The gas turbine engine of claim 1, wherein the predetermined amount of time is four hours. 5. The gas turbine engine of claim 1, wherein the stored energy source includes a battery. 6. The gas turbine engine of claim 1, wherein the ride thru unit is electrically connected to a DC bus of the variable frequency drive. 7. The gas turbine engine of claim 1, wherein the second predetermined amount of time is between ten and twenty seconds. 8. The gas turbine engine of claim 1, wherein the gas turbine engine includes a dual shaft configuration including the shaft and a power turbine shaft, wherein the shaft is a gas producer shaft. 9. A gas turbine engine, comprising: a compressor including a compressor rotor assembly including a plurality of compressor disk assemblies;a combustor adjacent the compressor;a turbine adjacent the combustor, the turbine including a turbine rotor assembly including a plurality of turbine disk assemblies;a shaft coupled to the compressor rotor assembly and at least one turbine disk assembly;a motor coupled to the shaft;a variable frequency drive electrically connected to the motor and to an AC power source and configured to slow roll the gas turbine engine at shutdown, the variable frequency drive including an AC to DC voltage converter and a DC to AC voltage converter;a stored energy source; anda ride thru unit electrically connected to the variable frequency drive, the AC power source and the stored energy source, the ride thru unit including at least one DC to DC voltage converter, operable to monitor an AC power of the AC power source, and provide power from the stored energy source to the variable frequency drive through the ride thru unit when an interruption or loss of the AC power is detected while the shaft is turned with the motor for a predetermined amount of time after shutdown of the gas turbine engine; and a fuel variable frequency drive;wherein the fuel variable frequency drive is electrically connected to the ride thru unit and the ride thru unit is further configured to provide power from the stored energy source to the fuel variable frequency drive through the ride thru unit up to a second predetermined amount of time when an interruption or loss of the AC power is detected during operation of the gas turbine engine, and shut down the gas turbine engine when the interruption or loss of the AC power lasts longer than the second predetermined amount of time. 10. The gas turbine engine of claim 9, wherein the second predetermined amount of time is between three and ten seconds. 11. A gas turbine engine, comprising: a compressor including a compressor rotor assembly including a plurality of compressor disk assemblies;a combustor adjacent the compressor;a turbine adjacent the combustor, the turbine including a turbine rotor assembly including a plurality of turbine disk assemblies;a shaft coupled to the compressor rotor assembly and at least one turbine disk assembly;a starter motor coupled to the shaft configured to rotate the shaft after shutdown of the gas turbine engine;a variable frequency drive electrically connected to the starter motor and to an alternating current power source;a stored energy source including a battery; anda ride thru unit electrically connected to the variable frequency drive, the stored energy source, and the alternating current power source, the ride thru unit configured to supply DC power to the variable frequency drive from the stored energy source when a loss in the alternating current power supplied to the variable frequency drive occurs while the starter motor rotates the shaft after shutdown of the gas turbine engine; anda lube oil system including a lube oil variable frequency drive;wherein the lube oil variable frequency drive is electrically connected to the ride thru unit and the ride thru unit is further configured to provide power from the stored energy source to the lube oil variable frequency drive through the ride thru unit up to a second predetermined amount of time when an interruption or loss of the AC power is detected during operation of the gas turbine engine, and shut down the gas turbine engine when the interruption or loss of the AC power lasts longer than the second predetermined amount of time. 12. The gas turbine engine of claim 11, further comprising: a fuel variable frequency drive;wherein the fuel variable frequency drive is electrically connected to the ride thru unit and the ride thru unit is further configured to provide power from the stored energy source to the fuel variable frequency drive through the ride thru unit up to a second predetermined amount of time when an interruption or loss of the AC power is detected during operation of the gas turbine engine, and shut down the gas turbine engine when the interruption or loss of the AC power lasts longer than the second predetermined amount of time. 13. The gas turbine engine of claim 9, wherein the at least one DC to DC voltage converter is configured to convert the power from the stored energy source to 510 VDC when the AC power is detected and convert the power from the stored energy source to 560 VDC when the AC power is not detected. 14. The gas turbine engine of claim 9, wherein the predetermined amount of time is from four to five hours. 15. The gas turbine engine of claim 9, wherein the predetermined amount of time is four hours. 16. The gas turbine engine of claim 11, wherein the at least one DC to DC voltage converter is configured to convert the power from the stored energy source to 510 VDC when the AC power is detected and convert the power from the stored energy source to 560 VDC when the AC power is not detected. 17. The gas turbine engine of claim 11, wherein the predetermined amount of time is from four to five hours. 18. The gas turbine engine of claim 11, wherein the predetermined amount of time is four hours. 19. The gas turbine engine of claim 1, wherein the gas turbine engine includes a dual shaft configuration including the shaft and a power turbine shaft, wherein the shaft is a gas producer shaft. 20. The gas turbine engine of claim 11, wherein the gas turbine engine includes a dual shaft configuration including the shaft and a power turbine shaft, wherein the shaft is a gas producer shaft.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (4)
Easter Michael J. (Pineville NC), Hydraulic turning arrangement for a turbine rotor.
Gupta,Suresh C.; Burnham,Douglas R.; Teets,J. Michael; Teets,Jon W., Method and apparatus for controlling output current of turbine/alternator on common shaft.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.