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Node analysis method-based self-healing control method for intelligent power distribution network

A power distribution network and self-healing control technology, applied in electrical components, circuit devices, emergency protection circuit devices, etc., can solve the problems of limited judgment, poor adaptability, poor real-time performance of fault isolation and non-fault areas, and achieve simple positioning methods, Reduced workload, isolation and quick recovery

Active Publication Date: 2016-03-23
NANJING INTELLIGENT APP
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  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

This method has high requirements on the distribution network and relatively poor adaptability
At the same time, the self-healing method has poor real-time performance in fault isolation and restoration of non-faulty areas, and the judgment of node locations during fault location has relatively large limitations.

Method used

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  • Node analysis method-based self-healing control method for intelligent power distribution network

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Experimental program
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Embodiment Construction

[0020] Below in conjunction with embodiment the present invention is described in further detail.

[0021] The basic principle of the following embodiment: if a node detects a fault, but the next adjacent node does not detect a fault, it means that the line between the two nodes is a fault area. The location information of nodes in the distribution network is divided into connection power supply, connection node, connection feeder, connection transmission line, and connection busbar, which are fixed and known for the built network. The master station communicates with the power distribution terminal, and according to the data uploaded by the power distribution terminal to the meter, it can be distinguished which node uploaded the data.

[0022] Below to figure 1 As a column, it specifically demonstrates the self-healing process of the system when the present invention is applied to a power distribution network containing a ring main unit when a fault occurs:

[0023] Step 1:...

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Abstract

The invention discloses a node analysis method-based self-healing control method for an intelligent power distribution network. A centralized control mode is adopted; and a network node topology analysis table generated on the basis of node attribute analysis is obtained by analyzing attributes of a power distribution network node. A master station communicates through an Ethernet and a power distribution terminal in the power distribution network, and achieves fault location and fault isolation of the power distribution network and power supply restoration of a non-fault region are achieved according to the generated network node topology analysis table and fault information and state information transmitted on the power distribution terminal. The method is simple and high in speed; flexible configuration can be carried out according to the actual demands of different sites while a software program does not need to change each time; and only a configuration table needs to change even if the network changes in future, so that the workload for software change is reduced.

Description

technical field [0001] The invention belongs to the technical field of electric power engineering, and in particular relates to a self-healing control method of an intelligent power distribution network based on a node analysis method. Background technique [0002] With the rapid development of the power industry, users have higher and higher requirements for power supply quality and reliability. As an important power supply facility in cities and rural areas, the distribution network is developing towards integration and integrated automation. The reliability and efficiency of grid operation, improving the quality of power supply, shortening the power outage time and reducing the power outage area will bring considerable economic and social benefits to the power supply system and society. Distribution network self-healing is to enable the distribution network to automatically realize fault location, fault isolation, and restore power supply in non-faulty areas, and report t...

Claims

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Application Information

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IPC IPC(8): H02J13/00H02H7/26H02H7/22
CPCH02H7/226H02H7/26H02J13/0006Y02E60/00Y04S10/20
Inventor 张杭陈诚
Owner NANJING INTELLIGENT APP
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