Distribution network reconstructing and modeling solving method and device capable of minimizing removal of fault area

A distribution network reconfiguration and fault area technology, applied in the direction of circuit devices, electrical components, AC network circuits, etc., can solve problems such as poor stability and reliability, and unresolved problems

Active Publication Date: 2020-01-10
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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  • Abstract
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  • Application Information

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[0009] The embodiment of the present invention provides a distribution network reconfiguration and its modeling and solution method and device fo

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  • Distribution network reconstructing and modeling solving method and device capable of minimizing removal of fault area
  • Distribution network reconstructing and modeling solving method and device capable of minimizing removal of fault area
  • Distribution network reconstructing and modeling solving method and device capable of minimizing removal of fault area

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Embodiment Construction

[0073] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0074] See figure 1 , Is a schematic flow diagram of a distribution network reconstruction with minimized removal of fault areas and its modeling solution method provided by Embodiment 1 of the present invention, including:

[0075] S101. Construct an objective function including load loss;

[0076] S102. Establish a voltage amplitude constraint model at the node corresponding to the fault point; wherein the voltage amplitude constraint mod...

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Abstract

The invention discloses a distribution network reconstructing and modeling solving method capable of minimizing removal of a fault area. The method comprises the following steps: constructing an objective function containing load loss; establishing a voltage amplitude constraint model of an extended feasible region for all nodes; establishing a network constraint model for a distribution network;establishing a transmission capability model for a distribution line; and through the voltage amplitude constraint model, the network constraint model and the line transmission capability model, enabling the voltage amplitudes of a fault point and all nodes communicated with the fault point through a conduction line to fall in a fault voltage range, enabling the loads of the fault point and all nodes communicated with the fault point through the conduction line to be 0, and identifying the nodes with the loads being 0 as a fault removal area. By using the distribution network reconstructing method disclosed by the invention, the fault removal area and the load loss can be minimized. Through mixed integer linear programming representation, the problem that resolution cannot be realized andthe stability and reliability are poor in the prior art can be solved. The embodiment of the invention further discloses a device and a storage medium.

Description

Technical field [0001] The present invention relates to the technical field of power systems, and in particular to a method and device for reconfiguration of a distribution network with minimal removal of fault areas and its modeling solution. Background technique [0002] The development and utilization of distributed clean energy and the active participation of users in the production and trading of electric energy are important and clear directions for the development of the power system formed in the past decade. For this reason, the concept of Active Distribution Network (ADN) came into being, which aims to solve the problem of compatibility of large-scale intermittent renewable energy access on the distribution side and the corresponding active participation of the user side in the electric energy market. According to the definition of TaskForceC6.11 of the International Conference on Large Power Grids (CIGRE), an active distribution network is a public distribution network...

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Application Information

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IPC IPC(8): H02J3/00
CPCH02J3/00
Inventor 李诗旸马珊珊朱泽翔
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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