Grid structure planning method for coordinated power transmission and distribution

A grid planning and grid structure technology, applied in electrical components, transmission systems, network interconnection, etc., can solve problems such as difficulty in meeting the coordination of transmission and distribution networks.

Active Publication Date: 2015-12-09
SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, typical wiring is difficult to meet the mutual coordination between transmission and distribution networks and the specific conditions of each specific power supply area.

Method used

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  • Grid structure planning method for coordinated power transmission and distribution
  • Grid structure planning method for coordinated power transmission and distribution
  • Grid structure planning method for coordinated power transmission and distribution

Examples

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Embodiment Construction

[0061] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

[0062] Such as figure 1 As shown, a grid structure planning method for power transmission and distribution coordination includes the following steps:

[0063] S1. According to the power supply relationship between each power source and substation and between the substation and the load, calculate the set of candidate lines for the transmission network and the set of candidate lines for the distribution network.

[0064] The set of candidate lines of the transmission network and the set of candidate lines of the distribution network include the start and end points of the lines, the length of the lines, and the parameters of the line shape; the line parameters of the selected candidate lines should meet the requirements of the line voltage level and capacity, Several possible line types to be selected can be sele...

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Abstract

The invention discloses a grid structure planning method of coordination of power transmission and distribution. The planning method comprises steps of getting alternative circuit sets of a power transmission network and a power distribution network through calculation according to power supplying relations between power supplies and transformers and between transformers and loads; establishing a power transmission network grid structure planning model; establishing a power distribution network grid structure planning model; respectively solving the power transmission network grid structure planning model and the power distribution network grid structure planning model to get the power transmission network grid structure and power distribution network grid structure planning results by adopting the preset algorithm; performing reliability evaluation on the power transmission network grid structure and power distribution network grid structure planning results by adopting the preset evaluation algorithm; and outputting the power transmission network grid structure and power distribution network grid structure planning results meeting the reliability requirements to be the power transmission network grid structure and power distribution network grid structure planning results for the coordinated power transmission and distribution. According to the invention, by use of the seal-adaption searching disperse firefly algorithm, the grid structure planning problem is solved; the optimal solution of a planning model can be quickly and precisely obtained; and the grid structure planning scheme for coordinated power transmission and distribution is finally obtained.

Description

technical field [0001] The invention relates to the technical field of grid planning, in particular to a grid structure planning method for power transmission and distribution coordination. Background technique [0002] A strong and reliable grid structure is the basic requirement of the transmission and distribution network and the basic guarantee for the high reliability of the power grid. It plays a pivotal role in preventing power outages and reducing the scope and loss of power outages. The transmission network and the distribution network are two-level power grids. Whether their grid structures are coordinated and well adapted to each other is related to the reliability of the power supply of the entire power grid. However, in the existing grid planning methods, the planning of the transmission network and the distribution network are carried out separately. That is, when planning the transmission network, the specific grid structure of the lower distribution network ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/46
Inventor 叶诚明张焰华月申
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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