[미국특허]
Torsional damping for gas turbine engines
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02C-007/36
F01D-025/04
F01D-015/10
H02P-021/05
F02C-003/04
F02C-007/04
F02C-007/22
F16F-015/14
F16F-015/16
H02K-005/24
H02P-009/00
H02P-023/04
F16F-015/00
H02P-023/26
출원번호
US-0018966
(2016-02-09)
등록번호
US-9938853
(2018-04-10)
발명자
/ 주소
Gemin, Paul Robert
Becker, Thomas Lee
Steen, Tod Robert
출원인 / 주소
GENERAL ELECTRIC COMPANY
대리인 / 주소
GE Aviation Patent Operation
인용정보
피인용 횟수 :
0인용 특허 :
44
초록▼
The present disclosure is directed to a gas turbine engine assembly having a compressor configured to increase pressure of incoming air, a combustion chamber, at least one turbine coupled to a generator, a torsional damper, and a controller. The combustion chamber is configured to receive a pressuri
The present disclosure is directed to a gas turbine engine assembly having a compressor configured to increase pressure of incoming air, a combustion chamber, at least one turbine coupled to a generator, a torsional damper, and a controller. The combustion chamber is configured to receive a pressurized air stream from the compressor. Further, fuel is injected into the pressurized air in the combustion chamber and ignited so as to raise a temperature and energy level of the pressurized air. The turbine is operatively coupled to the combustion chamber so as to receive combustion products that flow from the combustion chamber. The generator is coupled to the turbine via a shaft. Thus, the torsional damper is configured to dampen torsional oscillations of the generator. Moreover, the controller is configured to provide additional damping control to the generator.
대표청구항▼
1. A method of damping torsional oscillations of a shaft system of a gas turbine engine assembly, comprising: providing pressurized air to a combustion chamber;injecting fuel into the pressurized air within the combustion chamber and igniting the fuel so as to raise a temperature and energy level of
1. A method of damping torsional oscillations of a shaft system of a gas turbine engine assembly, comprising: providing pressurized air to a combustion chamber;injecting fuel into the pressurized air within the combustion chamber and igniting the fuel so as to raise a temperature and energy level of the pressurized air;providing combustion products from the combustion chamber to a turbine coupled via a shaft system to a generator; andgenerating, via the generator, AC voltage;converting, via a power converter, the AC voltage into DC voltage;converting, via the power converter, the DC voltage to another AC voltage;damping torsional oscillations of the shaft system via an electrical damper that includes at least one resistor, wherein the electrical damper is configured to operate on the DC voltage and is integral to the converter; andcontrolling, via a controller, the at least one resistor so to prohibit the generator from having a constant power load. 2. The method of claim 1, further comprising pressurizing the air via a compressor of the gas turbine engine assembly. 3. The method of claim 1, wherein the electrical damper is further configured to provide damping for forced excitations introduced to the turbine engine assembly. 4. The method of claim 1, further comprising controlling a power factor of the generator so as to provide additional torsional damping of the generator. 5. The method of claim 4, wherein controlling the power factor of the generator so as to provide additional torsional damping of the generator further comprises decreasing the power factor and creating losses internal to windings of the generator and connecting cables. 6. A method of damping torsional oscillations of a shaft system of a gas turbine engine assembly, comprising: generating, via a generator connected via the shaft system, a first AC voltage;converting, via a power converter, the first AC voltage into DC voltage;converting, via the power converter, the DC voltage into a second AC voltage;damping torsional oscillations of the shaft system via an electrical damper that includes at least one resistor, wherein the electrical damper is configured to operate on the DC voltage and is integral to the converter;controlling, via a controller, the at least one resistor so to prohibit the generator from having a constant power load; andcontrolling, via the controller, a power factor of the generator so as to provide additional torsional damping of the generator by creating losses internal to the generator. 7. The method of claim 6, wherein the shaft system operably couples a gas turbine engine and the generator. 8. The method of claim 7, further comprising integrating the electrical damper into one or more electrical circuits of the power converter.
Bowdich, Mark Daniel; Berry, Douglas Edwin; Wolff, Bruce Ernest Richard; Kramer, Gerhard; Woodruff, Scott Daniel, Power generation system and method for assembling the same.
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