A distribution network reconfiguration method

A technology for network reconstruction and distribution network, applied in the direction of AC network circuits, electrical components, circuit devices, etc., can solve the problems of power generation not meeting people's needs, affecting economic development and people's lives, and increasing the contradiction between supply and demand, and achieve Enhance local optimization ability, achieve effective balance, and improve the effect of voltage quality

Active Publication Date: 2017-02-15
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Application Information

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Problems solved by technology

However, in recent years, the power generation capacity of various energy sources in the country is far from meeting people's needs. Power cuts have occurred in various parts of the country, and the contradiction between supply and demand has become increasingly serious, seriously affecting economic development and people's lives.

Method used

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  • A distribution network reconfiguration method
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Embodiment Construction

[0029] The present invention will be further described below in conjunction with accompanying drawing.

[0030] see figure 1 , the distribution network reconfiguration method of the present invention comprises the following steps:

[0031] Step S1, numbering each component and line in the distribution network to form a database;

[0032] In order to simplify the IEEE33 node power distribution system model in this embodiment, the system network topology is represented by node numbers and line numbers.

[0033] Step S2, according to the requirements of radial operation and no island operation of the distribution network, determine the equation relationship between the number of network nodes, the number of branches, the total number of switches and the total number of switches that should be closed; The number of the ring network is equal to the number of switches that should be disconnected, and the branches and switches included in each ring network are determined;

[0034]...

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Abstract

The invention discloses a network reconstruction method for a power distribution network. A harmony search algorithm has the advantages that the optimization process is simple, the speed is high, the optimal solution is easy to find, and the global optimization capacity is excellent, but has the shortcoming that the local optimization capacity is slightly poor. To overcome the shortcoming, an elitist strategy is introduced into the harmony search algorithm, that is, elitist individuals are selected and partially updated, the local optimization capacity of the harmony search algorithm is enhanced on the basis of maintaining the high global optimization capacity of the harmony search algorithm, effective balance between global search and local search of the algorithm is realized, and therefore the harmony search algorithm has higher convergence. The network reconstruction method achieves the functions of reducing network loss and balancing loads through changes in operation status of section switches and interconnection switches.

Description

technical field [0001] The invention belongs to the field of distribution network operation control, and in particular relates to a distribution network network reconfiguration method. Background technique [0002] In recent years, with the rapid development of my country's national economy, the power load has increased year by year, and the structure of the distribution network has become increasingly complex, resulting in an increase in the loss of the distribution network network year by year. With the sustained and healthy development of the national economy and the continuous improvement of people's material and cultural living standards, the demand for electric energy is on the rise. However, in recent years, the power generation capacity of various energy sources in the country is far from meeting people's needs. Power cuts have occurred in various parts of the country, and the contradiction between supply and demand has become increasingly serious, seriously affectin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00G06F19/00
CPCG16Z99/00H02J3/00
Inventor 钱军邓孟华郭创新周洁洁余涛张俊超
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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