SYSTEM AND ASSOCIATED METHOD FOR MONITORING AND CONTROLLING A POWER PLANT
First Claim
1. A control system for a power plant, the power plant having a mill for pulverizing material which is input into a combustion system of the power plant, the control system comprising:
- a first sensor configured to record a first parameter of a first output from the combustion system;
a second sensor configured to record a second parameter of a second output from the combustion system;
an adjuster system configured to adjust and record at least one variable parameter of the combustion system;
a state estimator component configured to receive a first signal relating to the first parameter, a second signal relating to the second parameter and a third signal relating to the at least one variable system parameter, the state estimator component being configured to use the first signal, second signal and third signal to produce a material particle size distribution indicator signal and a system state indicator signal; and
an output component configured to receive the material particle size distribution indicator signal and the system state indicator signal, and to combine the material particle size distribution indicator signal and the system state indicator signal to produce an output control signal for transmission to at least one pulverizer in the mill.
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Accused Products
Abstract
A control system for a power plant having a mill for pulverizing material for input into a combustion system of the power plant includes first and second sensors for recording first and second parameter of first and second outputs from the combustion system, respectively, an adjuster system for adjusting and recording at least one variable parameter of the combustion system, and a state estimator component configured to receive a first signal relating to the first parameter, a second signal relating to the second parameter and a third signal relating to the at least one variable system parameter. The state estimator component uses the first to third signals to produce a material parameter indicator signal and a system state indicator signal. The control system includes an output component configured to receive the material parameter indicator system state indicator signals and to combine these signals to produce an output control signal.
14 Citations
19 Claims
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1. A control system for a power plant, the power plant having a mill for pulverizing material which is input into a combustion system of the power plant, the control system comprising:
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a first sensor configured to record a first parameter of a first output from the combustion system; a second sensor configured to record a second parameter of a second output from the combustion system; an adjuster system configured to adjust and record at least one variable parameter of the combustion system; a state estimator component configured to receive a first signal relating to the first parameter, a second signal relating to the second parameter and a third signal relating to the at least one variable system parameter, the state estimator component being configured to use the first signal, second signal and third signal to produce a material particle size distribution indicator signal and a system state indicator signal; and an output component configured to receive the material particle size distribution indicator signal and the system state indicator signal, and to combine the material particle size distribution indicator signal and the system state indicator signal to produce an output control signal for transmission to at least one pulverizer in the mill. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 18, 19)
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15. A method of controlling a power plant, the power plant having a mill for pulverizing material for input into a combustion system of the power plant, the method comprising:
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recording a first parameter of a first output from the combustion system; recording a second parameter of a second output from the combustion system; recording at least one adjustable variable parameter of the combustion system; using the first parameter, second parameter and a third parameter relating to the at least one adjustable variable parameter to produce a material particle size distribution indicator signal and a system state indicator signal; and combining the material particle size distribution indicator signal and the system state indicator signal to produce an output control signal for transmission to at least one pulverizer in the mill. - View Dependent Claims (16, 17)
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Specification