Power plant operation control system and a power plant maintaining and managing method
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Accused Products
Abstract
Quick recovery or recovery support of a faulty power generating facility by real time diagnoses such as facility failure diagnosis, supervision for failure symptoms, facility diagnosis by evaluation of performance using databases between the power generating facilities and an operation control system. The operation control system transfers information on operating status and secular characteristic changes of apparatus from power generating facilities or information from operators of selected power generating facilities. The level of a failure of a power generating facility which has a failure is evaluated and repairing information (e.g. recovery procedures, processes, required parts, inventory of the parts, possible failure causes, etc.) created from repairing information prepared in advance for each evaluation condition. The repairing information is then sent to the operation supporting section of the power generating facility.
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Citations
15 Claims
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1-12. -12. (canceled)
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13. A method of maintaining and managing a plurality of power generating facilities which supply power to arbitrary power systems, comprising the steps of:
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receiving information of a failure which has occurred in at least one of said power generating facilities, through a communication means, according to operation information of said power generating facilities, selecting a repairing period and procedure for said failure, from repairing periods and procedures which are predetermined according to levels of failures, and outputting an instruction, through said communication means, to control an operation of at least one of said power generating facilities other than said power generating facility in which said failure has occurred, according to said selected repairing period and procedure.
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14. An operation and management system for power generating facilities which maintains and manages a plurality of power generating facilities which supply power to arbitrary power systems, comprising:
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a database for storing an operation data obtained while said power generating facilities are in normal operating states and an operation data obtained while said power generating facilities with an operation data stored in said database, checks for any operation error, and outputs failure information when finding an operation error, a fault level judgment means which determines a level of failure from said outputted failure information, and an operation scheduling means which shows a predetermined repairing period and procedure selected according to said determined failure level.
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15. An operation and management system for power generating facilities which manages a plurality of power generating facilities by a remote monitoring, comprising:
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an abnormal element database which manages abnormal occurrence information and causes which correspond to said abnormal occurrence information, a level judgment means which performs a weighting step of an abnormal degree of each of said power generating facilities according to a respective operation state information of said power generating facilities, and in a case of a fatal failure when said weighted abnormal degree makes it necessary to immediately stop an operation of said power generating facilities, a means for stopping said operation due to an abnormal cause according to said abnormal element database, and a means for executing a control operation end command signal, in a case of a non-fatal failure when said weighted abnormal degree makes it unnecessary to immediately stop the operation of said power generating facilities, according to an operation command signal from a control device for controlling said power generating facilities, using a control model in which an actual logic of said control device is reflected, and for executing a process state amount, using a physical model according to said control operation end command signal, and for adjusting a control operation end adjustment use control set limit of said control device and a parameter of said control model with a same signal, when a difference between said execution result and an actual operation process measurement information is exceeded a preset limit, to eliminate said difference.
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Specification