IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0539763
(2009-08-12)
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등록번호 |
US-8326513
(2012-12-04)
|
발명자
/ 주소 |
- Singh, Kapil Kumar
- Han, Fei
- Srinivasan, Shiva
- Kim, Kwanwoo
- Balasubramanyam, Preetham
- Zong, Nan
- Zhang, Qingguo
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
2 |
초록
▼
A gas turbine engine control system comprises a data acquisition and analysis system for receiving a signal from a combustion dynamics sensor and providing an output signal and a combustion dynamics control system for controlling combustion dynamics based on the output signal. The control system is
A gas turbine engine control system comprises a data acquisition and analysis system for receiving a signal from a combustion dynamics sensor and providing an output signal and a combustion dynamics control system for controlling combustion dynamics based on the output signal. The control system is associated with a purge-air flow and comprises an acoustic driver, or a flow-manipulating device, or both to perturb the purge-air flow entering the combustor can for controlling combustion dynamics.
대표청구항
▼
1. A gas turbine engine control system, comprising: a data acquisition and analysis system for receiving a signal from a combustion dynamics sensor and providing an output signal; anda combustion dynamics control system for controlling combustion dynamics based on the output signal, the control syst
1. A gas turbine engine control system, comprising: a data acquisition and analysis system for receiving a signal from a combustion dynamics sensor and providing an output signal; anda combustion dynamics control system for controlling combustion dynamics based on the output signal, the control system is associated with a purge-air flow and comprises an acoustic driver, or a flow-manipulating device, or both to perturb the purge-air flow entering a combustor can for controlling combustion dynamics. 2. The system of claim 1, wherein the control system controls combustion dynamics if the output signal is indicative of combustion dynamics. 3. The system of claim 1, wherein the flow-manipulating device comprises a perturbation valve in a path of the purge-air flow to perturb the purge-air flow. 4. The system of claim 1, wherein the acoustic driver is configured to send an acoustic wave in a path of the purge-air flow to perturb the purge-air flow. 5. The system of claim 1, wherein the purge-air flow is perturbed to cause fluctuations in equivalence ratio and flow rate for mitigating combustion dynamics. 6. The system of claim 1, wherein the control system further comprises a dedicated flow path for delivering a flow into the combustor can and an additional acoustic driver. 7. The system of claim 6, wherein the control system further comprises a controller to control the acoustic drivers, the flow-manipulating device, and the flow delivered through the dedicated flow path. 8. The system of claim 6, wherein a vortex phenomenon in the combustor can is perturbed by the additional acoustic driver, the flow delivered through the dedicated flow path, or a combination of both for controlling combustion dynamics. 9. The system of claim 8, wherein the additional acoustic driver is configured to send an acoustic wave into the combustor can to perturb the vortex phenomenon. 10. The system of claim 8, wherein the flow delivered through the dedicated flow path comprises fuel, air, or a mixture of fuel and air. 11. The system of claim 8, wherein the vortex phenomenon is perturbed to mitigate combustion dynamics. 12. The system of claim 8, wherein the vortex phenomenon comprises vortex shedding, flame-vortex interaction, or a combination thereof. 13. The system of claim 1, wherein the combustion dynamics sensor is associated with the combustor can. 14. The system of claim 13, wherein the combustion dynamics sensor comprises a dynamic pressure sensor or a flame sensor. 15. A gas turbine engine control method, comprising: receiving a signal from a combustion dynamics sensor; andcontrolling combustion dynamics based on the received signal by perturbing a purge-air flow entering a combustor can using acoustic signals, flow-manipulation, or a combination thereof. 16. The method of claim 15, wherein controlling comprises controlling combustion dynamics if the received signal is indicative of combustion dynamics. 17. The method of claim 16, wherein using flow-manipulation comprises inducing perturbation in a path of the purge-air flow to perturb the purge-air flow. 18. The method of claim 16, wherein controlling combustion dynamics by perturbing the purge-air flow entering the combustor can comprises mitigating combustion dynamics. 19. The method of claim 15, wherein controlling combustion dynamics further comprises controlling combustion dynamics based on the received signal by perturbing a vortex phenomenon in the combustor can using the acoustic signals, a dedicated flow into a combustor can, or a combination thereof. 20. The method of claim 19, wherein the dedicated flow comprises fuel, air, or a mixture of fuel and air. 21. The method of claim 19, wherein controlling combustion dynamics by perturbing the vortex phenomenon comprises mitigating combustion dynamics. 22. The method of claim 19, wherein the vortex phenomenon comprises vortex shedding, flame-vortex interaction, or a combination thereof. 23. The method of claim 15, wherein the combustion dynamics sensor is associated with a combustor can. 24. The method of claim 15, wherein the combustion dynamics sensor comprises a dynamic pressure sensor or a flame sensor. 25. A system for a gas turbine engine, comprising: a data acquisition and analysis system for receiving a signal from a combustion dynamics sensor and providing an output signal; anda combustion dynamics control system for controlling combustion dynamics based on the output signal, the control system comprising a controller and at least one of an acoustic driver, a flow-manipulating device, and a dedicated flow path for delivering a flow into a combustor can to perturb a purge-air flow entering the combustor can, perturb a vortex phenomenon in the combustor can, or both for controlling combustion dynamics. 26. A gas turbine engine control method, comprising: receiving a signal from a combustion dynamics sensor; andcontrolling combustion dynamics based on the received signal by perturbing a purge-air flow entering a combustor can, a vortex phenomenon in the combustor can, or both using acoustic signals, flow-manipulation, a dedicated flow into a combustor can, or a combination thereof.
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