Control system and method for controlling dual fuel operation of industrial gas turbine power plants, preferably employing a digital computer
阅读：812发布：2023-09-22
专利汇可以提供Control system and method for controlling dual fuel operation of industrial gas turbine power plants, preferably employing a digital computer专利检索，专利查询，专利分析的服务。并且A gas turbine power plant is provided with an industrial gas turbine capable of sustained operation on either gas or liquid fuel, or a mixture of the two. One of more of such turbinegenerator plants are operated by a hybrid digital computer control system during all turbine operating modes. Optimum scheduling of either or both fuels under load is achieved by computer directed dual fuel subsystem operation. Computer determined fuel demands are continuously satisfied through either independent or simultaneous operation of the gas and liquid fuel subsystems.，下面是Control system and method for controlling dual fuel operation of industrial gas turbine power plants, preferably employing a digital computer专利的具体信息内容。
1. A gas turbine electric power plant comprising a gas turbine having a compressor and combustion and turbine elements, a generator having a field winding and being coupled to said turbine for drive power, a fuel system having plural subsystems for supplying one or more fuels to the gas tubrine combustion element, means for exciting said generator field winding, a control system including a digital computer and an input/output system therefor, a plurality of sensors disposed to monitor selected turbine parameters, said plurality of sensors comprising at least an arrangemnt of fuel pressure sensors, said plurality of sensors providing control system inputs representative of said turbine parameters, means for selectively operating one or more of said plural fuel subsystems to energize said turbine, and for controlling said exciting means, and means for operating said computer to make control action determinations for implementation by said plural fuel subsystem operating means and said exciting control means, said fuel system control actions being determined in response to time varying combinations of said sensors inputs, each of said combinations comprising at least an input from said fuel pressure sensors.
2. An electric power plant as set forth in claim 1 wherein said computer operating means operates to determine control actions for simultaneous implementation by said plural fuel subsystems operating means to maintain gas turbine operation over a predefined range of exhaust temperatures, over at least one interval of gas turbine operation.
3. An electric power plant as set forth in claim 1 wherein means are provided for detecting generator load and said computer operating means further provides for controlling said plural fuel subsystem operating meAns in response to detected load to regulate the generator loads substantially to a predetermined value.
4. An electric power plant as set forth in claim 2 wherein means ary provided for detecting generator load and said computer operating means further provides for controlling said plural fuel subsystem operating means in response to detected load to regulate the generator load substantially to a predetermined value.
5. An electric power plant as set forth in claim 1 wherein said computer operating means operates to determine control actions for implementation by one of said plural fuel subsystems operating means in response to an input from said fuel pressure sensors indicating a deficiency of fuel supply to another of said plural fuel subsystems.
6. An electric power plant as set forth in claim 2 wherein said computer operating means further operates to determine control actions for implementation by one of said plural fuel subsystems operating means in response to an input from said fuel pressure sensors indicating a deficiency of fuel supply to another of said plural fuel subsystems.
7. An electric power plant as set forth in claim 5 wherein means are provided for detecting generator load and said computer operating means further provides for controlling said plural fuel subsystems operating means in response to detected load to regulate the generator load substantially to a predetermined value.
8. An electric power plant as set forth in claim 6 wherein means are provided for detecting generator load and said computer operating means further provides for controlling said plural fuel subsystems operating means in response to detected load to regulate the generator load substantially to a predetermined value.
9. An electric power plant as set forth in claim 1 wherein said computer operating means operates to determine control actions for implementation by one of said plural fuel subsystem operating means over a first interval of operation of said gas turbine and on the occurrence of one or more predefined events, further operates to determine control actions for implementation by another of said plural fuel subsystem operating means over a second interval of operation of said gas turbine.
10. an electric power plant as set forth in claim 2 wherein said computer operating means further operates to determine control actions for a simultaneous implementation by said plural fuel subsystem operating means to maintain gas turbine operation over a predefined range of turbine exhaust temperatures, over a third interval of operation of said gas turbine, intermediate said first and second intervals.
11. An electric power plant as set forth in claim 10 wherein means are provided for detecting generator load and said computer operating means further provides for controlling said plural fuel subsystem operating means in response to detected load to regulate the generator load substantially to a predetermined value.
12. An electric power plant as set forth in claim 10 wherein said computer operating means further operates to vary the duration of said third interval in a manner functionally related to said turbine exhaust temperature.
13. An electric power plant as set forth in claim 11 wherein said computer operating means further operates to vary the duration of said third interval in a manner functionally related to said turbine exhaust temperatures.
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