IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0546498
(2014-11-18)
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등록번호 |
US-9803561
(2017-10-31)
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발명자
/ 주소 |
- Davis, Jr., Lewis Berkley
- Day, Scott Arthur
- Jordan, Jr., Harold Lamar
- Morgan, Rex Allen
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
45 |
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 output to match a nominal mega-watt power output value, and subsequently measuring an actual emissions value for each GT; adjusting an operating condition of each GT in the set of GTs based upon a difference between the respective measured actual emissions value and a nominal emissions value at the ambient condition; and calculating a degradation for each GT in the set of GTs over a period.
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 power output parameter and an emissions parameter, wherein the at least one compu
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 power output parameter and an emissions 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 power output parameter of each gas turbine in the set to match a nominal value of the power output parameter of the set, and subsequently measure a respective actual value of the emissions parameter for each gas turbine in the set;perform a first adjustment to a respective operating parameter of each gas turbine in the set based upon a difference between the respective actual value of the emissions parameter and a nominal value of the emissions parameter at the respective measured ambient condition for each gas turbine in the set,wherein the first 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 power output parameter versus the emissions 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 power output parameter versus the emissions parameter; andcalculate a degradation, indicative of a degradation amount over a time period, for each gas turbine in the set. 2. The computing system of claim 1, wherein the respective base load level is associated with a base load value of the power output parameter and a base load value of the emissions 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 power output parameter of the set and the nominal value of the emissions 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 emissions parameter and the nominal value of the emissions parameter at the respective measured ambient condition for each gas turbine in the set into a difference between a respective value of the power output parameter along the first line and the nominal value of the power output parameter of the set for each gas turbine in the set. 5. The computing system of claim 4, wherein the first adjustment to the respective operating parameter of each gas turbine in the set includes adjusting the respective operating parameter of each gas turbine in the set by a fraction of the difference between the respective value of the power output parameter along the first line and the nominal value of the power output parameter of the set, such that the power output parameter of each gas turbine in the set approaches and then reaches a respective nominal value of the power output parameter along the first line. 6. The computing system of claim 1, wherein, as part of the calculation of the degradation for each gas turbine in the set, the at least one computing device is further configured to: select a set of degradation variables and assign each of the degradation variables with a randomly selected degradation value. 7. The computing system of claim 6, wherein the set of the degradation variables includes a ranked sub-group of variables selected from a larger group of variables. 8. 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 power output parameter and an emissions 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 power output parameter of each gas turbine in the set to match a nominal value of the power output parameter of the set, and subsequently measuring a respective actual value of the emissions parameter for each gas turbine in the set;performing a first adjustment to a respective operating parameter of each gas turbine in the set based upon a difference between the respective actual value of the emissions parameter and a nominal value of the emissions parameter at the respective measured ambient condition for each gas turbine in the set,wherein the first 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 power output parameter versus the emissions 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 power output parameter versus the emissions parameter; andcalculating a degradation, indicative of a degradation amount over a time period, for each gas turbine in the set. 9. The computer program product of claim 8, wherein the respective base load level is associated with a base load value of the power output parameter and a base load value of the emissions parameter for the respective measured ambient condition. 10. The computer program product of claim 8, 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 power output parameter of the set and the nominal value of the emissions parameter at the respective measured ambient condition. 11. The computer program product of claim 8, which when executed, causes the at least one computing device to convert the difference between the respective actual value of the emissions parameter and the nominal value of the emissions parameter at the respective measured ambient condition for each gas turbine in the set into a difference between a respective value of the power output parameter along the first line and the nominal value of the power output parameter of the set for each gas turbine in the set. 12. The computer program product of claim 11, wherein the first adjustment to the respective operating parameter of each gas turbine in the set includes adjusting the respective operating parameter of each gas turbine in the set by a fraction of the difference between the respective value of the power output parameter along the first line and the nominal value of the power output parameter of the set value, such that the power output parameter of each gas turbine in the set approaches and then reaches a respective nominal value of the power output parameter along the first line. 13. The computer program product of claim 8, wherein the calculating of the degradation for each gas turbine in the set includes: selecting a set of degradation variables and assigning each of the degradation variables with a randomly selected degradation value. 14. The computer program product of claim 13, wherein the selecting of the set of degradation variables includes selecting a ranked sub-group of variables from a larger group of variables. 15. A computer-implemented method of tuning each gas turbine in a set of a plurality of gas turbines based upon a power output parameter and an emissions 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 power output parameter of each gas turbine in the set to match a nominal value of the power output parameter of the set, and subsequently measuring a respective actual value of the emissions parameter for each gas turbine in the set;performing a first adjustment to a respective operating parameter of each gas turbine in the set based upon a difference between the respective actual value of the emissions parameter and a nominal value of the emissions parameter at the respective measured ambient condition for each gas turbine in the set,wherein the first 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 power output parameter versus the emissions 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 power output parameter versus the emissions parameter; andcalculating a degradation, indicative of a degradation amount over a time period, for each gas turbine in the set. 16. The computer-implemented of claim 15, wherein the respective base load level is associated with a base load value of the power output parameter and a base load value of the emissions parameter for the respective measured ambient condition, 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 power output parameter and the nominal value of the emissions parameter at the respective measured ambient condition, the computer-implemented method further including converting the difference between the respective actual value of the emissions parameter and the nominal value of the emissions parameter at the respective measured ambient condition for each gas turbine in the set into a difference between a respective value of the power output parameter along the first line and the nominal value of the power output parameter of the set for each gas turbine in the set. 17. The computer-implemented method of claim 16, wherein the first adjustment to the respective operating parameter of each gas turbine in the set includes adjusting the respective operating parameter of each gas turbine in the set by a fraction of the difference between the respective value of the power output parameter along the first line and the nominal value of the power output parameter of the set, such that the power output parameter of each gas turbine in the set approaches and then reaches a respective nominal value of the power output parameter along the first line. 18. The computer-implemented method of claim 15, wherein the commanding of each gas turbine in the set to adjust the respective actual value of the power output parameter of each gas turbine in the set to match the nominal value of the power output parameter of the set moves the emissions parameter for each gas turbine in the set closer to the nominal value of the emissions parameter at the respective measured ambient condition without matching the nominal value of the emissions parameter at the respective measured ambient condition. 19. The computer-implemented method of claim 18, wherein the calculating of the degradation for each gas turbine in the set includes: selecting a set of degradation variables and assigning each of the degradation variables with a randomly selected degradation value. 20. The computer-implemented method of claim 19, wherein the selecting of the set of the degradation variables includes selecting a ranked sub-group of variables from a larger group of variables.
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