METHOD AND DEVICE FOR CONTROLLING OPTIMUM OPERATION OF POWER PLANT

PROBLEM TO BE SOLVED: To improve operating efficiency as a whole power-plant by controlling each power generating element on the basis of optimum load distribution obtained by arithmetically operating an optimum schedule from a schedule control data and the model of the power-plant and the quantity...

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Bibliographische Detailangaben
Hauptverfasser:	TAKESHITA SATOHIKO, FUJITA KAORU, EMOTO GENICHI, NAKAGAWA SEIJI
Format:	Patent
Sprache:	eng
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY FUNCTIONAL ELEMENTS OF SUCH SYSTEMS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERATION MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING SYSTEMS FOR STORING ELECTRIC ENERGY TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To improve operating efficiency as a whole power-plant by controlling each power generating element on the basis of optimum load distribution obtained by arithmetically operating an optimum schedule from a schedule control data and the model of the power-plant and the quantity of the state of an input process. SOLUTION: In a scheduling system 130, scheduling is conducted so that the running cost of the power-plant during a specified period is minimized in consideration of the quantities of demands in future of steam and electricity. In an optimizing system 110, the demand and supply balances of steam and electricity are satisfied, and the economically optimum load distribution of a boiler and a turbine is calculated as the whole power-plant. In a multivariable control system 120, the load of the boiler and the turbine is taken into a multivariable control operation section 123, and set as the set values of control operation. In the multivariable control operation section 123, the quantities of the states of processes are taken in as a control variable, a disturbance variable and an operation variable, and multivariable control is conducted while using optimizing arithemetic results as set values.