Intelligent management method and system for cascading switching stations of distribution network

A technology of intelligent management and opening and closing. It is applied in the direction of information technology support system, electrical components, circuit devices, etc. It can solve the problem that fault isolation and power supply recovery are easily affected by communication links, fault isolation and power supply recovery time are long, and there is no Protection tripping function and other issues to achieve the effect of speeding up fault handling and power supply recovery, shortening fault removal time, and eliminating the cumulative effect of step-by-step delay
CN105375635BActive Publication Date: 2017-11-07STATE GRID CORP OF CHINA +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
STATE GRID CORP OF CHINA
Publication Date
2017-11-07

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Abstract

The invention discloses an intelligent management method and system for cascaded switching stations of a distribution network. The switching stations are all provided with fault handling terminals, each of which is connected to the optical fiber ring network through an Ethernet switch, and each of the fault processing terminals is provided with a communication server, and all of the communication servers Both are connected to the power distribution master station. The invention introduces the idea of ​​line optical fiber differential protection and directional protection into the fault handling of distribution network, and forms an intelligent management system of distribution network cascaded switching stations according to the power supply relationship. The terminal uses the fast communication between the unit networks, only transmits the fault signal, and negotiates independently, which solves the selectivity of the protection action when the feeder is faulty, and realizes fault isolation at one time.
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Description

Technical field:

[0001] The invention relates to maintenance and management of a distribution network cascade switch station, in particular to an intelligent management method and system for a distribution network cascade switch station. Background technique:

[0002] With the development of the national economy and the continuous improvement of people's material and cultural living standards, users have higher and higher requirements for power supply reliability. Power outages not only cause inconvenience to people's lives and bring great economic losses, but also have a great negative impact on society. Relevant studies have shown that every kilowatt-hour of power outage will bring an average economic loss of 40 yuan to users, and the economic loss caused by power outages in my country reaches hundreds of billions of yuan every year. Therefore, the power supply reliability of the distribution network needs to be improved urgently, and solving the fault handling problem of...

Claims

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