METHODS AND SYSTEMS FOR ENHANCING CONTROL OF POWER PLANT GENERATING UNITS
First Claim
1. A control method for enhancing an operation of a power plant, wherein the power plant includes thermal generating units for generating electricity for a market, and wherein the power plant comprises possible operating modes differentiated by characteristics of operating parameters, each of which comprises a physical aspect of the operation of the power plant, the control method including:
- tuning a power plant model so to configure a tuned power plant model, wherein the tuning comprises a tuning procedure inclusive of the following steps;
a) defining a first operating period and a plurality of the operating parameters, and then sensing measured values for the plurality of operating parameters during the first operating period;
b) defining a performance indicator that comprises a performance criteria for the operation of the power plant, wherein the performance indicator is defined so to depend upon, at least in part, a selected operating parameter chosen from the plurality of the operating parameters;
c) from the measured values, calculating a measured value for the performance indicator;
d) with the power plant model and a subset of the measured values as input data, simulating the operation of the power plant over the first operating period and determining therefrom a simulated value for the selected operating parameter;
e) based on the simulated value for the selected operating parameter, calculating a predicted value for the performance indicator;
f) comparing the measured value against the predicted value of the performance indicator so to determine a differential therebetween; and
g) tuning the power plant model based on the differential so to configure the tuned power plant model; and
simulating proposed operating modes of the power plant with the tuned power plant model, wherein the simulating comprising a simulation procedure inclusive of the following steps;
a) defining a second operating period;
b) selecting the proposed operating modes from the possible operating modes;
c) with the tuned power plant model, performing a simulation run for each of the proposed operating modes whereby the operation of the power plant during the second operating period is simulated; and
d) obtaining simulation results from each of the simulation runs.
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Abstract
A control method for optimizing or enhancing an operation of a power plant that includes thermal generating units for generating electricity. The power plant may include multiple possible operating modes differentiated by characteristics of operating parameters. The method may include tuning a power plant model so to configure a tuned power plant model. The method may further include simulating proposed operating modes of the power plant with the tuned power plant model. The simulating may include a simulation procedure that includes: defining a second operating period; selecting the proposed operating modes from the possible operating modes; with the tuned power plant model, performing a simulation run for each of the proposed operating modes whereby the operation of the power plant during the second operating period is simulated; and obtaining simulation results from each of the simulation runs.
283 Citations
25 Claims
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1. A control method for enhancing an operation of a power plant, wherein the power plant includes thermal generating units for generating electricity for a market, and wherein the power plant comprises possible operating modes differentiated by characteristics of operating parameters, each of which comprises a physical aspect of the operation of the power plant, the control method including:
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tuning a power plant model so to configure a tuned power plant model, wherein the tuning comprises a tuning procedure inclusive of the following steps; a) defining a first operating period and a plurality of the operating parameters, and then sensing measured values for the plurality of operating parameters during the first operating period; b) defining a performance indicator that comprises a performance criteria for the operation of the power plant, wherein the performance indicator is defined so to depend upon, at least in part, a selected operating parameter chosen from the plurality of the operating parameters; c) from the measured values, calculating a measured value for the performance indicator; d) with the power plant model and a subset of the measured values as input data, simulating the operation of the power plant over the first operating period and determining therefrom a simulated value for the selected operating parameter; e) based on the simulated value for the selected operating parameter, calculating a predicted value for the performance indicator; f) comparing the measured value against the predicted value of the performance indicator so to determine a differential therebetween; and g) tuning the power plant model based on the differential so to configure the tuned power plant model; and simulating proposed operating modes of the power plant with the tuned power plant model, wherein the simulating comprising a simulation procedure inclusive of the following steps; a) defining a second operating period; b) selecting the proposed operating modes from the possible operating modes; c) with the tuned power plant model, performing a simulation run for each of the proposed operating modes whereby the operation of the power plant during the second operating period is simulated; and d) obtaining simulation results from each of the simulation runs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification