Power transmission network frame planning method considering different functional attributes

A technology of functional attributes and network structure planning, applied in data processing applications, marketing, instruments, etc., can solve problems such as inability to plan different functional requirements of the power grid

Active Publication Date: 2020-02-28
STATE GRID CORP OF CHINA +2
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AI Technical Summary

Problems solved by technology

[0003] Most of the traditional transmission network grid planning starts from a certain functional attribute of the grid, so the constructed transmission grid structure can only reflect the advantages and disadvantages of a certain aspect, and cannot be planned according to the different functional requirements of the grid

Method used

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  • Power transmission network frame planning method considering different functional attributes
  • Power transmission network frame planning method considering different functional attributes
  • Power transmission network frame planning method considering different functional attributes

Examples

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Embodiment 1

[0184] see figure 1 , a transmission grid planning method considering different functional attributes. This method takes the IEEE-18 node system as the object (see Tables 1 and 2 for its node and line data), and proceeds in turn according to the following steps:

[0185] Table 1 Node data of IEEE-18 system

[0186]

[0187]

[0188] Table 2 Line data of IEEE-18 system

[0189]

[0190]

[0191] Step 1. Select the data point with the highest point density from the collected wind speed data set as the first initial cluster center;

[0192] Step 2. Use the following evaluation function to select the data point with the highest evaluation value as the next initial clustering center until all initial clustering centers are calculated:

[0193]

[0194]

[0195]

[0196] In the above formula, Z i is the data point x i density, d ij is the data point x i 、x j Between the Ran's distance, e is the point density threshold, n is the number of data points;

[...

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Abstract

The invention discloses a power transmission network frame planning method considering different functional attributes. The method comprises the following steps: constructing a new energy output and load model of a to-be-planned power grid according to acquired wind speed data; calculating to obtain a plurality of wind power output typical scenes; establishing a multi-target power transmission network structure planning model according to four functional attributes of new energy consumption, load center power supply, water and electricity delivery and channel interconnection of the power grid;solving the model according to the wind power average output per unit value in each typical scene, the average load size in each typical scene and the occurrence probability of each typical scene; obtaining a plurality of grid structure planning schemes, then calculating the closeness of each scheme by adopting a multi-objective decision-making method based on entropy weight, and taking the scheme with the maximum closeness as a target scheme. According to the design, different functional requirements of the power grid can be met, the power supply reliability, the wind power absorption capacity and the regional power grid power transmission capacity of the power grid are remarkably improved, and meanwhile the calculation time is shortened.

Description

technical field [0001] The invention belongs to the field of transmission network planning, and in particular relates to a transmission network grid planning method considering different functional attributes. Background technique [0002] In the process of power grid planning, it is often necessary to plan a suitable grid structure according to the different functions to be carried by the power grid to be built. However, as the scale of the power grid further expands, the functions carried by the power grid in the same region often have multiple functions, and different functional attributes have different impacts on the grid structure and different requirements for safety and reliability. In the case of limited investment funds, it is necessary to Analyze the different functions of the load, so as to select the appropriate grid grid planning scheme for investment and construction. [0003] Most of the traditional transmission network grid planning starts from a certain fu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06G06Q30/02
CPCG06Q10/0637G06Q10/067G06Q50/06G06Q30/0206Y04S50/14Y04S10/50
Inventor 赵雄光王博赵红生杨东俊乔立魏聪刘巨徐小琴熊志关钦月任羽纶肖楚飞唐飞梁伟强简文卿梦琪卿梦娇张一凡王飞飞
Owner STATE GRID CORP OF CHINA
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