Electric power generating facility operation remote supporting method and electric power generating facility operation remote supporting system

• US 7,127,374 B2
• Filed: 09/11/2002
• Issued: 10/24/2006
• Est. Priority Date: 12/05/2001
• Status: Expired due to Term

• Current Assignee: mitsubishi hitachi power systems, ltd. (Mitsubishi Heavy Industries, Ltd.)
• Original Assignee: Hitachi, Ltd.
• Inventors: Nagafuchi, Naoyuki, Furukawa, Masao
• Primary Examiner(s): Hoff, Marc S.
• Assistant Examiner(s): Charioui, Mohamed
• Application Number:
  US10/238,631
• Publication Number:
  US 20030105613A1
• Time in Patent Office: 1,504 Days
• Field of Search: 702 57- 62, 702/64, 702/65, 702/122, 702182-185, 702/188, 700/286, 714/25, 714/37, 714/38, 714/48, 379/40, 705/8
• US Class Current: 702/183
• CPC Class Codes: G05B 23/027 Alarm generation, e.g. communication protocol; Forms of alarm
• CPC Class Codes: G05B 23/0286 Modifications to the monitored process, e.g. stopping operation or adapting control
• CPC Class Codes: H02J 3/0012 Contingency detection
• CPC Class Codes: Y04S 10/52 Outage or fault management, e.g. fault detection or location

Abstract

When an abnormality or a sign of abnormality occurs in an electric power generating facility, an appropriate operating support can be made in a short time.

The electric power facility operation remote supporting method in accordance with the present invention is characterized by that an abnormality or a sign of abnormality is judged based on at least one of information on an operating state of the electric power generating facility and information on time-varying characteristics of components in the electric power generating facility, and a service mode is set based on the judged information of the abnormality or the sign of abnormality, preset abnormality corrective data and preset service modes.

Claims

1. An electric power facility operation remote supporting system for remotely supporting operation of an electric power generating facility by monitoring and diagnosing operating states of electric power generating facilities installed at a plurality of distributed places from a place different from the places of said facilities, which comprises:

means for transmitting at least one of information on operating states and time-varying characteristics of components from said electric power generating facilities to said system;

means for processing and diagnosing the information obtained by said means for transmitting information; and

means for performing a load changing operation analysis by an operating characteristic evaluation tool which is a combination of a simulator and a control logic which are tuned so as to simulate characteristics of said concerned electric power generating facility when it is judged that a sign of abnormality occurs in the facility based on the information from said means for transmitting information, and transmitting recommended control set values obtained thereby to a section in charge of operation of said electric power generating facility when an analysis result obtained by said load changing operation analyzing function falls within an allowable range.

2. An electric power facility operation remote supporting system according to claim 1, which further comprises means for transmitting information on a place to perform repair of a component and a procedure of the repair of the component and an estimated cause of an abnormality to the section in charge of operation of said electric power generating facility when the abnormality occurs in the facility and when the repair of the component is required.

3. An electric power facility operation remote supporting system according to claim 1, which further comprises means for transmitting information on operating experience and component life-time compensating statuses of a concerned facility to the section in charge of operation of said electric power generating facility when said electric power generating facility is in a normal state, said information on operating experience and component life-time compensating statuses being obtained based on operating information transmitted plural times per day from said concerned facility.

4. An electric power facility operation remote supporting system according to claim 1, wherein said system further comprises:

means for selecting tuning items and automatically tuning when said analysis result obtained by said load changing operation analysis falls out of said allowable range; and

means for repeatedly tuning until the analysis result obtained by said load changing operation analysis falls within said allowable range.

5. An electric power facility operation remote supporting method for remotely supporting operation of an electric power generating facility by monitoring and diagnosing operating states of electric power generating facilities installed at a plurality of distributed places from a place different from the places of said facilities, wherein

information including operating states and time- varying characteristics of components of a concerned electric power generating facility is transmitted to a monitoring person side under a condition pre-contracted with a manager of said concerned electric power generating facility, and

an accounting contract corresponding to a degree of technical difficulty in regard to the abnormality corrective action corresponding to contents of the contract with the manager of said concerned electric power generating facility is made with the manager of said concerned electric power generating facility when a dynamic trend of said concerned electric power generating facility is calculated on the basis of the transmitted information and it is judged that a sign of abnormality or an abnormality occurs in the facility, a load changing operation analysis by an operating characteristic evaluation tool which is a combination of a simulator and a control logic which are tuned so as to simulate characteristics of said concerned electric power generating facility is performed, and recommended control set values obtained thereby are offered to a section in charge of operation of said concerned electric power generating facility when an analysis result obtained by said load changing operation analyzing function falls within an allowable range.

6. An electric power facility operation remote supporting method according to claim 5, wherein when said analysis result obtained by said load changing operation analysis falls out of said allowable range, tuning is repeated by selecting tuning items and effecting automatic tuning until the analysis result obtained by said load changing operation analysis falls within said allowable range.

7. An electric power facility operation remote supporting method for remotely supporting operation of an electric power generating facility, the method comprising the steps of:

presetting abnormality corrective-action data corresponding to a plural kinds of abnormality or abnormal sign data in regard to said electric power generating facility;

presetting servicing modes corresponding to said abnormality corrective-action data;

judging an abnormality or a sign of abnormality of said electric power generating facility based on at least one of operating state information of said electric power generating facility and information on time-varying characteristics of electric power facility components; and

setting a servicing mode based on information judging an abnormality or a sign of abnormality and said preset abnormality corrective-action data corresponding to abnormality or abnormal sign data and said preset servicing modes corresponding to said abnormality corrective-action data when said abnormality or said sign of abnormality occurs in said electric power generating facility.

8. An electric power facility operation remote supporting system for remotely supporting operation of an electric power generating facility by monitoring and diagnosing operating states of electric power generating facilities installed at a plurality of distributed places from a place different from the places of said facilities, which comprises:

means for transmitting at least one of information on operating states and time-varying characteristics of components from said electric power generating facilities to said system;

means for processing and diagnosing the information obtained by said means for transmitting information; and

means for starting a prepared abnormality corrective-action task corresponding to a degree of abnormality when it is judged that a sign of abnormality occurs in the facility based on the information from said means for transmitting information, and transmitting information generated thereby to a section in charge of operation of said electric power generating facility,

wherein when a sign of abnormality occurs in said electric power generating facility and can be solved by changing a set value in a control unit associating with said facility, the information on an operating state and the time-varying characteristics of the components from said electric power generating facility is input to a simulator which reproduce characteristics of the actual facility using information on test operation of said concerned facility performed in advance and normal operating information, and a control condition is improved based on a set value changing guideline obtained from a sensitivity analysis in advance, and then the improved information is offered to the manager of said facility.

9. An electric power facility operation remote supporting system for remotely supporting operation of an electric power generating facility, which comprises:

a database for storing abnormality corrective-action data corresponding to data of a plurality of abnormalities or signs of abnormality in regard to said electric power generating facility;

a database for storing service modes corresponding to said abnormality corrective-action data;

means for judging an abnormality or a sign of abnormality of said electric power generating facility based on at least one of information on an operating state of said electric power generating facility and information on time-varying characteristic of components of said electric power generating facility; and

means for setting a service mode based on information judging an abnormality or a sign of abnormality when the abnormality or the sign of abnormality occurs in said electric power generating facilities, said stored abnormality corrective-action data corresponding to data of the abnormalities or the signs of abnormality, and said stored service modes corresponding to said abnormality corrective-action data.