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Urban power grid planning method considering main distribution network coordination

An urban power grid and planning technology, applied in the direction of AC network circuits, electrical components, circuit devices, etc., can solve the problem of not considering the influence of the coordination planning of the main distribution network.

Active Publication Date: 2020-05-05
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the above research process, the influence of urban power grid construction conditions such as geographical location and transmission channels on the coordinated planning of the main distribution network has not been considered.

Method used

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  • Urban power grid planning method considering main distribution network coordination
  • Urban power grid planning method considering main distribution network coordination
  • Urban power grid planning method considering main distribution network coordination

Examples

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Comparison scheme
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Embodiment 1

[0119] see figure 1 , an urban power grid planning method considering the coordination of the main distribution network. This embodiment takes a certain city power grid in my country as the object. The power grid has: 2 alternative 220 kV station sites, respectively A 1 、A 2 , there are already 9 220kV stations, respectively A 3 -A 11 , 10 alternative 110 kV station sites, respectively B 1 -B 10 , there are already 22 110kV stations, respectively B 11 -B 32. , see the specific structure figure 2 , the method proceeds in turn as follows:

[0120] Step A, constructing a substation line joint expansion planning model based on the collected basic data of the urban power grid to be planned, wherein the planning model takes the minimum total construction cost as the objective function:

[0121] C T =C 2T +C 2l +C 1T +C 1l

[0122]

[0123] A(i) ∈ {0, 1}

[0124] S 2 (i) ∈ {18, 24, 36, 48}

[0125] S 2 (j) ∈ {18, 24, 36}

[0126]

[0127] B(i) ∈ {0, 1}

[0...

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Abstract

The invention discloses an urban power grid planning method considering main distribution network coordination. According to the method, a transformer substation line joint extension planning model with the minimum cost of a newly-built 220-kilovolt transformer substation and line and the minimum cost of a newly-built 110-kilovolt transformer substation and line as target functions is constructedaccording to collected basic data of an urban power grid to be planned, then the planning model is solved, and an optimal power grid planning scheme is obtained. According to the design, effective implementation of the planning scheme can be guaranteed, and the operation efficiency and the operation safety of the system equipment are effectively improved.

Description

technical field [0001] The invention belongs to the field of power grid planning, and in particular relates to a method for urban power grid planning considering the coordination of main distribution networks. Background technique [0002] Power system planning is an important part of power system development, which mainly meets the high reliability power supply of load through upgrading old or new power equipment. At present, the research on power system planning methods mainly focuses on four aspects: power supply planning, substation expansion planning, power grid expansion planning and reactive power planning. Among them, 220 kV and 110 kV substation expansion planning and grid expansion planning are important channels for connecting high-voltage power grids to supply power to loads, especially for urban power grids, whose development is mainly based on the development of 220 kV and 110 kV power grids. As urban construction conditions become more and more difficult, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06H02J3/00
CPCG06Q10/04G06Q10/0637G06Q50/06H02J3/00Y04S10/50
Inventor 刘巨李梦颖杨东俊杜治赵红生胡婷任羽纶乔立易柏年
Owner STATE GRID CORP OF CHINA
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