Method and system for optimizing operation schedule of plant
First Claim
1. A plant-operation-schedule optimization method of calculating an optimized operation schedule having a cost evaluation function based on a characteristic model, an operation constraint, and operation planned values from the present to the future of at least one plant to be controlled,wherein an operation mode variable meaning a kind of an operation mode of the plant is included as one of independent variables in the calculation of the operation schedule optimization, an operation pattern determined in advance according to the operation mode variable is set as an operation constraint, and the calculation of the operation schedule optimization of the plant is performed such that an operation cost for every operation mode or an operation cost when the operation mode is changed is minimized in the cost evaluation function.
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Abstract
A plant-operation-schedule optimization system includes a data inputting device transmitting a future operation planned value of at least one plant to be controlled; an operation-data inputting device transmitting operation data concerning the plant; and an operation-schedule calculating unit receiving the operation planned value and the operation data concerning the plant from the data inputting device and the operation data inputting device, respectively, to calculate an optimized operation schedule of the plant. The operation-schedule calculating unit includes an optimization calculator calculating the optimized operation schedule; and a database storing the kind of an operation mode, an operation pattern, and an operation cost according to the operation mode of the plant. The data stored in the database is referred to in the calculation of the optimized operation schedule in the optimization calculator.
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Citations
13 Claims
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1. A plant-operation-schedule optimization method of calculating an optimized operation schedule having a cost evaluation function based on a characteristic model, an operation constraint, and operation planned values from the present to the future of at least one plant to be controlled,
wherein an operation mode variable meaning a kind of an operation mode of the plant is included as one of independent variables in the calculation of the operation schedule optimization, an operation pattern determined in advance according to the operation mode variable is set as an operation constraint, and the calculation of the operation schedule optimization of the plant is performed such that an operation cost for every operation mode or an operation cost when the operation mode is changed is minimized in the cost evaluation function.
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4. A plant-operation-schedule optimization system comprising:
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a data inputting device transmitting a future operation planned value of at least one plant to be controlled; an operation-data inputting device transmitting operation data concerning the plant; and an operation-schedule calculating unit receiving the operation planned value and the operation data concerning the plant from the data inputting device and the operation data inputting device, respectively, to calculate an optimized operation schedule of the plant, wherein the operation-schedule calculating unit includes; an optimization calculator calculating the operation schedule optimization; and a database storing the kind of an operation mode, an operation pattern, and an operation cost according to the operation mode of the plant, and the data stored in the database is referred to in the calculation of the optimized operation schedule in the optimization calculator. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification