System and method to provide maintenance for an electrical power generation, transmission and distribution system

• US 20070203779A1
• Filed: 01/12/2007
• Published: 08/30/2007
• Est. Priority Date: 12/29/2000
• Status: Active Grant

• Current Assignee: ABB Power Grids Switzerland AG (ABB Limited)
• Original Assignee: Abb As (ABB Limited)
• Inventors: Gundersen, Lars, Midtgard, Ole-Morten, Tveit, Tor, Moen, Ragnar, Kleivi, Roald, Nysveen, Arne
• Granted Patent: US 8,126,752 B2
• Time in Patent Office: Days
• US Class Current: 705/9
• CPC Class Codes: G05B 23/0283 Predictive maintenance, e.g. involving the monitoring of a system and, based on the monitoring results, taking decisions on the maintenance schedule of the monitored system; Estimating remaining useful life [RUL] preventive maintenance, i.e. planning maintenance according to the available resources without monitoring the system G06Q10/06
• CPC Class Codes: G06Q 10/063 Operations research, analysis or management
• CPC Class Codes: G06Q 10/06311 Scheduling, planning or task assignment for a person or group
• CPC Class Codes: G06Q 50/06 Energy or water supply
• CPC Class Codes: Y02E 20/14 Combined heat and power generation [CHP]
• CPC Class Codes: Y04S 10/50 Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications

Abstract

A method for providing maintenance to an electrical power generation, transmission and distribution system, and an information system and one or more computer program software means for carrying out same. A method to provide maintenance to an electrical power generation facility and/or an electrical power transmission and distribution network system operated by a Utility. Maintenance personnel visit a site to inspect a condition of said apparatus, and examine information from an Information System operated in co-ordination with a Help Desk. The method comprises further steps such as preparing a report of the apparatus with a mobile web camera, making a report comprising a graphic image of the condition of said apparatus, receiving at said Help Desk and Information System the report and graphic image from the inspector/repairman, finding stored information about said apparatus and/or said system in said Information System, comparing said stored information with the report and/or graphic image, the inspector/repairman making in consultation with the Help Desk an assessment of the condition of said apparatus and providing a recommendation such as a repair, a temporary repair or making a plan for a repair at a later time.

Claims

1. A method to provide maintenance to an electrical power

1-1. A method to provide maintenance to an electrical power generation facility and/or an electrical power transmission and distribution network system and apparatus connected to said system, operated by a Utility, whereby maintenance personnel visit a site where a said apparatus is located to inspect a condition of said apparatus, and examine information from an information system, wherein said method comprises the further steps of:

having the inspector/repairman examine said apparatus with an inspection means and prepare a report comprising at least one graphic image of the condition of said apparatus,

receiving at said help desk and Information System the report and graphic image from the inspector/repairman,

finding stored information about said apparatus and/or said system in said Information System,

comparing said stored information with the report and/or graphic image,

making an assessment of the condition of said apparatus and providing a recommendation for a maintenance measure such as a repair.

2. A method according to claim 1, comprising a step of making a decision for the inspector/repairman to carry out a repair in consultation with the Help Desk.

3. A method according to claim 1, comprising a step of that the inspector/repairman carries out a temporary repair in consultation with the Help Desk.

4. A method according to claim 1, comprising a step of that the repair carried out is documented by inspector/repairman in consultation with the Help Desk and a report of that repair is stored in the Information System.

5. A method according to claim 1, comprising a step of that the inspector/repairman in consultation with the Help Desk makes a plan to repair a fault at a later time.

6. A method according to claim 1, comprising a step of that the inspector/repairman in consultation with the Help Desk documents the plan to repair a fault at a later time in full.

7. A method according to claim 1, comprising a step of that the plan to repair a fault at a later time comprises a guaranty.

8. A method according to claim 1, comprising a step of taking action to place purchase and/or procurement orders for spare parts and or new equipment.

9. A method according to claim 1, comprising a stop of taking action to place one or more work orders to procure and schedule work according to a plan for repair to an equipment or to a part of the power network.

10. A method according to claim 1, comprising that information about a condition of an equipment or part of the power network is transmitted at least in part over the Internet.

11. A method according to claim 1, comprising that the Help Desk is implemented as one or more engineers with mobile communications, mobile computers, and mobile access to data communication networks including the Internet.

12. A method according to claim 1, is that the Help Desk is implemented further comprising one or more computer programs of an expert system type configured so as to enable an inspector/repairman to input information concerning an equipment and retrieve further technical information about maintenance of the equipment.

13. A method according to claim 1, comprising the further steps of selecting a possible action for a repair of temporary measure such as switching in or out a load,

inputting technical details such as an electrical load and/or an electrical configuration to one or more computer programs for modelling and/or simulating individual equipment and/or a part of a power network according to the possible repair or temporary measure,

examining the modelling result and appraising the merits of the possible repair or temporary measure.

14. A method according to claim 13, comprising the further steps of modelling an effect of any of, disconnecting lines, disconnection of a complete or partial of load, reconfiguring the power network by for example disconnecting one switch and connecting another, operation of an equipment such as a transformer at reduced load, operation of an equipment such as a transformer at increased load.

15. A method according to claim 13, comprising the further step of evaluating a possible result of a maintenance action such as:

a consequence for electrical power consumers, and

a reduction of life-time (service life or average service life) of a component.

16. A method according to claim 1, comprising the step of receiving from the Utility notice of a condition of an equipment or part of the power network.

17. A method according to claim 1, comprising the step of receiving from the power network information reporting a condition of an equipment or part of the power network.

18. A method according to claim 17, comprising the step of receiving from the power network information reporting a condition of an equipment or part of the power network dependent on an analysis of a signal from a camera at a site or other location of the power network.

19. A power system information system to provide maintenance for an electrical power generation, transmission and distribution system and apparatus connected to said power system, said Information System comprising one or more databases, and communication links to maintenance personnel located elsewhere, wherein said information system comprises:

an engineering/service Help Desk, mobile inspection means to make a graphic image for an inspection report,

communication means at the Help Desk to receive a inspection report comprising a graphic image,

display means at the Help desk to examine the report and/or the graphic image,

mobile terminal, computer and display mans to retrieve information from the one or more databases,

computer and display means to compare the graphic image and/or inspection report with retrieved information.

20. A power system information system according to claim 19, in which the inspection means comprises a web camera arranged to send pictures in a format such as TCP/IP suitable for transmission over a network such as the Internet.

21. A power system information system according to claim 19, which comprises a communication means enabling two-way voice communication between an inspector at a site and the Help Desk.

22. A power system information system according to claim 19, which comprises storage means to document details of a decision to provide maintenance service.

23. A power system information system according to claim 19, which comprises reporting and storage means to document details of a plan to provide maintenance service at a later time.