Automated maximum sustained rate system and method
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02D-029/06
H02P-009/04
H02P-009/00
F01K-015/00
F01K-011/02
F01K-007/16
F02N-011/06
출원번호
US-0294057
(2016-10-14)
등록번호
US-10033317
(2018-07-24)
발명자
/ 주소
Schultz, Paul Clarence
출원인 / 주소
Florida Power & Light Company
대리인 / 주소
Giunta, Jeffrey N.
인용정보
피인용 횟수 :
0인용 특허 :
26
초록▼
In the context of electric power generation facilities, a system and method that enable control of maximum sustained rate of change in output to accommodate changing load conditions and to facilitate efficient use of system resources are disclosed. In accordance with aspects of the disclosed subject
In the context of electric power generation facilities, a system and method that enable control of maximum sustained rate of change in output to accommodate changing load conditions and to facilitate efficient use of system resources are disclosed. In accordance with aspects of the disclosed subject matter, a ramp rate for an electric generator source may be set, operating parameters may be monitored, rates of change or discrepancies of the operating parameters over time may be computed; and output signals may then be used selectively to control certain system components.
대표청구항▼
1. A method comprising: setting a ramp rate for an electric source;monitoring operating parameters at components of the source including one or more of a boiler, a steam turbine, an electric generator, and a stack;computing rates of change or discrepancies of the operating parameters over time; andp
1. A method comprising: setting a ramp rate for an electric source;monitoring operating parameters at components of the source including one or more of a boiler, a steam turbine, an electric generator, and a stack;computing rates of change or discrepancies of the operating parameters over time; andproviding output signals as a result of said monitoring and said computing selectively to control one of the boiler, the turbine, or the generator,wherein said setting a ramp rate comprises utilizing the output signals selectively to vary the ramp rate based on the operating parameters,wherein said setting a ramp rate further comprises utilizing input from a distributed control system component remote from the electric source, andwherein said setting a ramp rate further comprises utilizing input from a solar generator source having a solar unit controller in communication with the distributed control system component. 2. The method of claim 1 wherein the operating parameters include throttle pressure at the boiler, first stage metal temperature at the turbine, megawatt error at the generator, and opacity at the stack. 3. The method of claim 2 wherein said providing output signals comprises selectively transmitting the output signals to ones of the boiler, turbine, generator, and stack to control the operating parameters. 4. An electric power generation system comprising: a generator source including a boiler, a steam turbine, an electric generator, and a stack, each of said boiler, turbine, generator, and stack comprising an associated control component;a unit controller in communication with the associated control component at each of said boiler, turbine, generator, and stack; said unit controller configured and operative to perform a method comprising: setting a ramp rate for said generator source, the ramp rate indicative of a change in output level of said generator;receiving data representative of operating parameters from the associated control component at one or more of said boiler, turbine, generator, and stack;computing rates of change or discrepancies of the operating parameters over time; andproviding output signals as a result of the receiving and the computing selectively to control one of said boiler, turbine, or generator;an additional generator source, an additional unit controller, and a distributed control system component in communication with said unit controller and said additional unit controller; anda solar generator source having a solar unit controller, wherein said distributed control system component is in communication with said solar unit controller, and setting a ramp rate comprises utilizing input from said solar unit controller. 5. The system of claim 4 wherein the operating parameters include throttle pressure at said boiler, first stage metal temperature at said turbine, megawatt error at said generator, and opacity at said stack. 6. The system of claim 5 wherein providing output signals comprises selectively transmitting the output signals to the associated control component at ones of said boiler, turbine, generator, and stack to control the operating parameters. 7. The system of claim 4 wherein setting a ramp rate comprises utilizing the output signals selectively to vary the ramp rate based on the operating parameters. 8. The system of claim 4 wherein, for each of said unit controller and said additional unit controller, setting a ramp rate comprises utilizing input from said distributed control system component. 9. The system of claim 8 wherein the setting a ramp rate further comprises utilizing, at said distributed control system component, the output signals from said unit controller selectively to vary the ramp rate at said additional generator source. 10. A method of utilizing resources at an electric power generation facility, said method comprising: employing a plurality of electric power sources, each of the plurality of power sources including a boiler, a steam turbine, an electric generator, a stack, and a unit controller;providing a distributed control system component remote from the electrical power sources and in communication with the unit controller at each of the plurality of power sources;for each of the of power sources: setting a ramp rate, the ramp rate indicative of a change in output level of said generator;monitoring operating parameters of one or more of the boiler, turbine, generator, and stack;computing rates of change or discrepancies of the operating parameters over time; andproviding output signals as a result of said monitoring and said computing selectively to control one of the boiler, the turbine, or the generator,wherein said setting a ramp rate comprises utilizing the output signals selectively to vary the ramp rate based on the operating parameters,wherein said setting a ramp rate further comprises utilizing input from the distributed control system component, andwherein said setting a ramp rate further comprises utilizing input from a solar generator source having a solar unit controller in communication with the distributed control system component; andreceiving, at the distributed control system component, responsive to said monitoring, said computing, and said providing, data representative of the operating parameters at each of the plurality of power sources. 11. The method of claim 10 wherein the operating parameters include throttle pressure at the boiler, first stage metal temperature at the turbine, megawatt error at the generator, and opacity at the stack. 12. The method of claim 11 wherein said providing output signals comprises selectively transmitting the output signals to ones of the boiler, the turbine, the generator, and the stack to control the operating parameters. 13. The method of claim 10 wherein said setting a ramp rate comprises utilizing the output signals selectively to vary the ramp rate based on the operating parameters. 14. The method of claim 13 wherein said setting a ramp rate further comprises utilizing input from the distributed control system component. 15. The method of claim 14 wherein said setting a ramp rate for each of the plurality of power sources comprises utilizing the operating parameters from each of the others of the plurality of power sources. 16. The method of claim 15 wherein said setting a ramp rate further comprises maximizing ramp rate for a number of the plurality of power sources necessary to satisfy a steady state load.
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이 특허에 인용된 특허 (26)
Martens Alan (Berwyn PA) Myers Gerry A. (Swarthmore PA), Adaptive temperature control system for the supply of steam to a steam turbine.
Martz Lyle F. (Verona PA) Kiscaden Roy W. (Springfield PA) Uram Robert (East Pittsburgh PA), Gas turbine and steam turbine combined cycle electric power generating plant having a coordinated and hybridized control.
McCarty William L. (West Chester FL) Wescott Kermit R. (Winter Springs FL), Gas turbine control system having maximum instantaneous load-pickup limiter.
Yannone Robert A. (Aldan PA) Shields James J. (Philadelphia PA), Gas turbine power plant control apparatus including a speed/load hold and lock system.
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Yannone Robert A. (Aldan PA) Shields James J. (Philadelphia PA), Gas turbine power plant control apparatus including an ambient temperature responsive control system.
Yannone Robert A. (Aldan PA) Shields James J. (Philadelphia PA), Gas turbine power plant control apparatus including an ambient temperature responsive control system.
Martens Alan (Berwyn PA) Myers Gerald A. (Swarthmore PA) McCarty William L. (West Chester PA) Wescott Kermit R. (Kennett Square PA), Heat recovery steam generator outlet temperature control system for a combined cycle power plant.
Kawamura Hideyuki,JPX ; Harashima Toshihiko,JPX ; Takahashi Shoei,JPX ; Ishida Takeshi,JPX, Method of controlling load on power plant and load control system for carrying out the same.
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