Method for remote monitoring of gas turbine
First Claim
1. A method for monitoring at a remote monitoring center a turbine driven by a supply of high temperature combustion gas generated by combustion in a combustor, the method comprising:
- a first step of receiving second data containing representative values within a predetermined period of time in a first communications mode at a plant in which the turbine is installed and monitoring the second data, wherein the second data is generated based on first data concerning a combustion oscillation of the combustion gas in the combustor obtained on a real-time basis in a normal state; and
a second step of receiving and monitoring the first data from the plant in a second communications mode a speed of which is higher than that of the first communications mode in the event of an abnormal state in which the second data is close to a value representing a predetermined critical state.
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Accused Products
Abstract
The present invention is characterized in that the state of combustion oscillation in the combustor of a turbine of a plant such as a power plant is monitored from a remote monitoring center. To monitor combustion oscillation state, combustion oscillation data on the combustor is separated into two types of data; (1) the first data obtained on a real-time basis, and (2) the second data consisting of representative values within a predetermined period of time obtained from the first data. In the normal state, a low-speed communications mode is used to send the second data, which is monitored at the monitoring center. If an abnormal state is predicted as a result of monitoring the second data, the high-speed communications mode is used to send the first data, and more detailed combustion oscillation data is monitored at-the monitoring center. When a critical state is predicted, an instruction is sent to the local site to switch the operation mode over to the low load operation mode, whenever required.
53 Citations
17 Claims
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1. A method for monitoring at a remote monitoring center a turbine driven by a supply of high temperature combustion gas generated by combustion in a combustor, the method comprising:
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a first step of receiving second data containing representative values within a predetermined period of time in a first communications mode at a plant in which the turbine is installed and monitoring the second data, wherein the second data is generated based on first data concerning a combustion oscillation of the combustion gas in the combustor obtained on a real-time basis in a normal state; and
a second step of receiving and monitoring the first data from the plant in a second communications mode a speed of which is higher than that of the first communications mode in the event of an abnormal state in which the second data is close to a value representing a predetermined critical state. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A turbine monitoring system comprising a plant in which a turbine which is driven by a supply of high temperature combustion gas generated by combustion in a combustor, and a turbine monitoring center which is connected via a communications line to the plant and located in a place remote from the plant;
wherein the monitoring center comprises;
first means for receiving second data comprising representative values within a predetermined period of time from the plant in a first communications mode and displaying the second data, wherein the second data is generated on the basis of first data concerning combustion oscillations of the combustion gas in the combustor obtained on a real-time basis in a normal state, and second means for receiving the first data from the plant in a second communications mode a speed of which is higher than that of the first communications mode in the event of an abnormal state in which the second data is close to a value representing a predetermined critical state.
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9. A method for monitoring at a remote monitoring center a turbine driven by a supply of high temperature combustion gas generated by combustion in a combustor, the method comprising:
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a first step of receiving second data containing representative values within a predetermined period of time in a first communications mode at a plant in which the turbine is installed and monitoring the second data, wherein the second data is generated based on first data concerning an operational state of the turbine obtained on a real-time basis in a normal state; and
a second step of receiving and monitoring first data from the plant in a second communications mode a speed of which is higher than that of the first communications mode in the event of an abnormal state in which the second data is close to a value representing a predetermined critical state.
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10. (Amended) A remote-controllable plant provided with a turbine which is driven by a supply of high temperature combustion gas generated by combustion in a combustor, the plant further comprising:
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means for detecting first data on combustion oscillation of combustion gas in a combustor on a real-time basis in a normal state, means for generating second data comprising representative values within a predetermined period of time based on the first data, first communications means for transmitting the second data in a first communications mode from the plant in which the turbine is installed, and second communications means for transmitting and receiving the first data from the plant in a second communications mode a speed of which is higher than that of the first communications mode in the event of an abnormal state when the second data is close to a value representing a predetermined critical state. - View Dependent Claims (11, 12, 13, 15, 16)
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14. (Amended) A monitoring center for remote-controlling a plant provided with a turbine which is driven by a supply of high temperature combustion gas generated by combustion in a combustor, comprising:
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first communications means for receiving the second data comprising representative values within a predetermined period of time from the plant in the first communications mode, wherein the second data is generated on the basis of the first data on combustion oscillation of combustion gas in the combustor obtained on a real-time basis in a normal state, and second communications means for receiving the first data from the plant in a second communications mode a speed of which is higher than that of the first communications mode in the event of an abnormal state in which the second data is close to a value representing a predetermined critical state. - View Dependent Claims (17)
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Specification