A uniaxial gas turbine system, comprising a uniaxial gas turbine, a rotary machine driven by the uniaxial gas turbine, a continuously variable transmission for transmitting a driving force from the uniaxial gas turbine to the rotary machine, and a control device for controlling the speed of the unia
A uniaxial gas turbine system, comprising a uniaxial gas turbine, a rotary machine driven by the uniaxial gas turbine, a continuously variable transmission for transmitting a driving force from the uniaxial gas turbine to the rotary machine, and a control device for controlling the speed of the uniaxial gas turbine to an optimum speed and controlling the gear ratio of the continuously variable transmission so that the speed of the rotary machine becomes a prescribed speed, whereby the speed of the gas turbine or the rotary machine can be optimized according to the load variation of the rotary machine driven by the gas turbine.
대표청구항▼
The invention claimed is: 1. A uniaxial gas turbine system comprising: a uniaxial gas turbine; a rotary machine driven by said uniaxial gas turbine; a continuously variable speed transmission of transmitting a drive force from said uniaxial gas turbine to said rotary machine; and a controller of co
The invention claimed is: 1. A uniaxial gas turbine system comprising: a uniaxial gas turbine; a rotary machine driven by said uniaxial gas turbine; a continuously variable speed transmission of transmitting a drive force from said uniaxial gas turbine to said rotary machine; and a controller of controlling a revolution speed of said uniaxial gas turbine to an optimal revolution speed and controlling a speed variation ratio of said continuously variable speed transmission so as to set a revolution speed of said rotary machine to a desired revolution speed, wherein said continuously variable speed transmission is a continuously variable speed transmission of a power split system for distributing and transmitting said revolution speed of said uniaxial gas turbine, said continuously variable speed transmission has a traction drive disposed on a low power side of said continuously variable speed transmission, and a clutch for connecting or disconnecting a transmission of said drive force between said uniaxial gas turbine and said rotary machine is disposed on an input side of said traction drive. 2. A uniaxial gas turbine system according to claim 1, wherein said optimal revolution speed is set based on an optimal fuel consumption map indicating a revolution speed at which a fuel consumption of said uniaxial gas turbine is minimum according to a load of said rotary machine. 3. A uniaxial gas turbine system according to claim 1, wherein said rotary machine has an AC generator, and said controller controls said speed variation ratio of said continuously variable speed transmission so as to keep a revolution speed of said AC generator constant. 4. A uniaxial gas turbine system according to claim 1, wherein said rotary machine has a pump. 5. A uniaxial gas turbine system according to claim 4, wherein said controller controls said speed variation ratio of said continuously variable speed transmission according to a drive torque of said pump. 6. A uniaxial gas turbine system according to claim 4, wherein said pump is a vertical shaft pump, and said continuously variable speed transmission has a bevel gear mechanism for transmitting said drive force from said uniaxial gas turbine to said vertical shaft pump. 7. A uniaxial gas turbine system according to claim 1, wherein said controller operates said clutch to disconnect said transmission of said drive force when said revolution speed of said uniaxial gas turbine is reduced due to a sudden increase in said load of said rotary machine. 8. A uniaxial gas turbine system according to claim 1, wherein said continuously variable speed transmission has a traction drive and a planetary gear transmission mechanism. 9. A uniaxial gas turbine system according to claim 8, wherein the clutch is disposed on a low torque side of said continuously variable speed transmission. 10. A method for controlling a uniaxial gas turbine system having a uniaxial gas turbine, a rotary machine driven by said uniaxial gas turbine, and a continuously variable speed transmission of transmitting a drive force from said uniaxial gas turbine to said rotary machine, comprising: controlling a revolution speed of said uniaxial gas turbine to an optimal revolution speed; and controlling a speed variation ratio of said continuously variable speed transmission so as to set a revolution speed of said rotary machine to a desired revolution speed, wherein said continuously variable speed transmission is a continuously variable speed transmission of a power split system for distributing and transmitting said revolution speed of said uniaxial gas turbine, said continuously variable speed transmission has a traction drive disposed on a low power side of said continuously variable speed transmission, and a clutch for connecting or disconnecting a transmission of said drive force between said uniaxial gas turbine and said rotary machine is disposed on an input side of said traction drive. 11. A method for controlling a uniaxial gas turbine system according to claim 10, wherein said optimal revolution speed is set based on an optimal fuel consumption map indicating a revolution speed at which a fuel consumption of said uniaxial gas turbine is minimum according to a load of said rotary machine. 12. A method for controlling a uniaxial gas turbine system according to claim 10, wherein said rotary machine has an AC generator, and said method controls said speed variation ratio of said continuously variable speed transmission so as to keep a revolution speed of said AC generator constant. 13. A method for controlling a uniaxial gas turbine system according to claim 10, wherein said rotary machine has a pump. 14. A method for controlling a uniaxial gas turbine system according to claim 13, wherein said method controls said speed variation ratio of said continuously variable speed transmission according to a drive torque of said pump. 15. A method for controlling a uniaxial gas turbine system according to claim 13, wherein said pump is a vertical shaft pump, and said continuously variable speed transmission has a bevel gear mechanism for transmitting said drive force from said uniaxial gas turbine to said vertical shaft pump. 16. A method for controlling a uniaxial gas turbine system according to claim 10, wherein said method operates said clutch to disconnect said transmission of said drive force when said revolution speed of said uniaxial gas turbine is reduced due to a sudden increase in said load of said rotary machine. 17. A method for controlling a uniaxial gas turbine system according to claim 10, wherein said continuously variable speed transmission has a traction drive and a planetary gear transmission mechanism. 18. A method for controlling a uniaxial gas turbine system according to claim 17, wherein the clutch is disposed on a low torque side of said continuously variable speed transmission.
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