IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0686201
(2015-04-14)
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등록번호 |
US-9599033
(2017-03-21)
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발명자
/ 주소 |
- Morgan, Rex Allen
- Davis, Jr., Lewis Berkley
- Day, Scott Arthur
- Jordan, Jr., Harold Lamar
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
15 |
초록
▼
Various embodiments include a system having: at least one computing device configured to tune a set of gas turbines (GTs) by performing actions including: commanding each GT in the set of GTs to a base load level, based upon a measured ambient condition for each GT; commanding each GT in the set of
Various embodiments include a system having: at least one computing device configured to tune a set of gas turbines (GTs) by performing actions including: commanding each GT in the set of GTs to a base load level, based upon a measured ambient condition for each GT; commanding each GT in the set of GTs to adjust a respective fuel flow value to match a nominal fuel flow value, and subsequently measuring an actual exhaust energy value for each GT; and adjusting an operating condition of each GT in the set of GTs based upon a difference between the respective measured actual exhaust energy value and a nominal exhaust energy value at the ambient condition.
대표청구항
▼
1. A computing system comprising: at least one computing device having at least one controller, the at least one computing device configured to tune each gas turbine in a set of a plurality of gas turbines based upon a fuel flow parameter and an exhaust energy parameter, wherein the at least one com
1. A computing system comprising: at least one computing device having at least one controller, the at least one computing device configured to tune each gas turbine in a set of a plurality of gas turbines based upon a fuel flow parameter and an exhaust energy parameter, wherein the at least one computing device is configured to:command each gas turbine in the set to a respective base load level based upon a respective measured ambient condition;command each gas turbine in the set to adjust a respective actual value of the fuel flow parameter of each gas turbine in the set to match a nominal value of the fuel flow parameter of the set, and subsequently measure a respective actual value of the exhaust energy parameter for each gas turbine in the set; andperform an adjustment to a respective operating parameter of each gas turbine in the set based upon a difference between the respective actual value of the exhaust energy parameter and a nominal value of the exhaust energy parameter at the respective measured ambient condition for each gas turbine in the set,wherein the adjustment to the respective operating parameter of each gas turbine in the set aligns each gas turbine in the set onto a first line in a graphical space plotting the fuel flow parameter versus the exhaust energy parameter,wherein the first line is orthogonal to a characteristic line in the graphical space, wherein the characteristic line is a mean characteristic line of all of the plurality of gas turbines in the set, at the respective base load level of each gas turbine in the set, plotting the fuel flow parameter versus the exhaust energy parameter. 2. The computing system of claim 1, wherein the respective base load level is associated with a base load value of the fuel flow parameter and a base load value of the exhaust energy parameter for the respective measured ambient condition. 3. The computing system of claim 1, wherein in response to the command of each gas turbine in the set to the respective base load level, each gas turbine in the set does not attain at least one of the nominal value of the fuel flow parameter of the set and the nominal value of the exhaust energy parameter at the respective measured ambient condition. 4. The computing system of claim 1, wherein the at least one computing device is further configured to convert the difference between the respective actual value of the exhaust energy parameter and the nominal value of the exhaust energy parameter at the respective measured ambient condition for each gas turbine in the set into a difference between a respective value of the fuel flow parameter along the first line and the nominal value of the fuel flow parameter of the set for each gas turbine in the set. 5. The computing system of claim 4, wherein the adjustment to the respective operating parameter of each gas turbine in the set includes adjusting the operating parameter of each gas turbine in the set by a fraction of the difference between the respective value of the fuel flow parameter along the first line and the nominal value of the fuel flow parameter of the set, such that the fuel flow parameter of each gas turbine in the set approaches and then reaches a respective nominal value of the fuel flow parameter along the first line. 6. The computing system of claim 1, wherein the commanding of each gas turbine in the set to adjust the respective actual value of the fuel flow parameter of each gas turbine in the set to match the nominal value of the fuel flow parameter of the set moves the exhaust energy parameter for each gas turbine in the set closer to the nominal value of the exhaust energy parameter at the respective measured ambient condition without matching the nominal value of the exhaust energy parameter at the respective measured ambient condition. 7. A computer program product comprising program code embodied in at least one non-transitory computer readable medium, which when executed by at least one computing device having at least one controller, causes the at least one computing device to tune each gas turbine in a set of a plurality of gas turbines based upon a fuel flow parameter and an exhaust energy parameter by: commanding each gas turbine in the set to a respective base load level based upon a respective measured ambient condition;commanding each gas turbine in the set to adjust a respective actual value of the fuel flow parameter of each gas turbine in the set to match a nominal value of the fuel flow parameter of the set, and subsequently measuring a respective actual value of the exhaust energy parameter for each gas turbine in the set; andadjusting a respective operating parameter of each gas turbine in the set based upon a difference between the respective actual value of the exhaust energy parameter and a nominal value of the exhaust energy parameter at the respective measured ambient condition for each gas turbine in the set,wherein the adjusting of the respective operating parameter of each gas turbine in the set aligns each gas turbine in the set onto a first line in a graphical space plotting the fuel flow parameter versus the exhaust energy parameter,wherein the first line is orthogonal to a characteristic line in the graphical space, wherein the characteristic line is a mean characteristic line of all of the plurality of gas turbines in the set, at the respective base load level of each gas turbine in the set, plotting the fuel flow parameter versus the exhaust energy parameter. 8. The computer program product of claim 7, wherein the respective base load level is associated with a base load value of the fuel flow parameter and a base load value of the exhaust energy parameter for the respective measured ambient condition. 9. The computer program product of claim 7, wherein in response to the commanding of each gas turbine in the set to the respective base load level, each gas turbine in the set does not attain at least one of: the nominal value of the fuel flow parameter of the set and the nominal value of the exhaust energy parameter at the respective measured ambient condition. 10. The computer program product of claim 7, which when executed, causes the at least one computing device to convert the difference between the respective actual value of the exhaust energy parameter and the nominal value of the exhaust energy parameter at the respective measured ambient condition for each gas turbine in the set into a difference between a respective value of the fuel flow parameter along the first line and the nominal value of the fuel flow parameter of the set for each gas turbine in the set. 11. The computer program product of claim 10, wherein the adjusting of the respective operating parameter of each gas turbine in the set includes adjusting the operating parameter of each gas turbine in the set by a fraction of the difference between the respective value of the fuel flow parameter along the first line and the nominal value of the fuel flow parameter of the set, such that the fuel flow parameter of each gas turbine in the set approaches and then reaches a respective nominal value of the fuel flow parameter along the first line. 12. The computer program product of claim 7, wherein the commanding of each gas turbine in the set to adjust the respective actual value of the fuel flow parameter of each gas turbine in the set to match the nominal value of the fuel flow parameter of the set moves the exhaust energy parameter for each gas turbine in the set closer to the nominal value of the exhaust energy parameter at the respective measured ambient condition without matching the nominal value of the exhaust energy parameter at the respective measured ambient condition. 13. A computer-implemented method of tuning each gas turbine in a set of a plurality of gas turbines based upon a fuel flow parameter and an exhaust energy parameter, performed using at least one computing device having at least one controller, the computer-implemented method comprising: commanding each gas turbine in the set to a respective base load level based upon a respective measured ambient condition;commanding each gas turbine in the set to adjust a respective actual value of the fuel flow parameter of each gas turbine in the set to match a nominal value of the fuel flow parameter of the set, and subsequently measuring a respective actual value of the exhaust energy parameter for each gas turbine in the set; andadjusting a respective operating parameter of each gas turbine in the set based upon a difference between the respective actual value of the exhaust energy parameter and a nominal value of the exhaust energy parameter at the respective measured ambient condition for each gas turbine in the set,wherein the adjusting of the respective operating parameter of each gas turbine in the set aligns each gas turbine in the set onto a first line in a graphical space plotting the fuel flow parameter versus the exhaust energy parameter,wherein the first line is orthogonal to a characteristic line in the graphical space, wherein the characteristic line is a mean characteristic line of all of the plurality of gas turbines in the set, at the respective base load level of each gas turbine in the set, plotting the fuel flow parameter versus the exhaust energy parameter. 14. The computer-implemented method of claim 13, wherein the respective base load level is associated with a base load value of the fuel flow parameter and a base load value of the exhaust energy parameter for the respective measured ambient condition. 15. The computer-implemented method of claim 14, wherein in response to the commanding of each gas turbine in the set to the respective base load level, each gas turbine in the set does not attain at least one of: the nominal value of the fuel flow parameter of the set and the nominal value of the exhaust energy parameter at the respective measured ambient condition. 16. The computer-implemented method of claim 15, further comprising converting the difference between the respective actual value of the exhaust energy parameter and the nominal value of the exhaust energy parameter at the respective measured ambient condition for each gas turbine in the set into a difference between a respective value of the fuel flow parameter along the first line and the nominal value of the fuel flow parameter of the set for each gas turbine in the set. 17. The computer-implemented method of claim 16, wherein the adjusting of the respective operating parameter of each gas turbine in the set includes adjusting the operating parameter of each gas turbine in the set by a fraction of the difference between the respective value of the fuel flow parameter along the first line and the nominal value of the fuel flow parameter of the set, such that the fuel flow parameter of each gas turbine in the set approaches and then reaches a respective nominal value of the fuel flow parameter along the first line. 18. The computer-implemented method of claim 13, wherein the commanding of each gas turbine in the set to adjust the respective actual value of the fuel flow parameter of each gas turbine in the set to match the nominal value of the fuel flow parameter of the set moves the exhaust energy parameter for each gas turbine in the set closer to the nominal value of the exhaust energy parameter at the respective measured ambient condition without matching the nominal value of the exhaust energy parameter at the respective measured ambient condition.
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