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Distribution network equipment capacity and line type selection configuration optimization method and system

A technology for equipment capacity and configuration optimization, applied in design optimization/simulation, computer-aided design, instruments, etc., can solve the problem of lack of long-term operation cost considerations of distribution network, etc., and achieve long-term economic and safety effects.

Pending Publication Date: 2022-05-13
HUIZHOU POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a distribution network equipment capacity and line selection and configuration optimization method and system to overcome the defect of lack of consideration of all aspects of the long-term operation of the distribution network in the distribution network planning process

Method used

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  • Distribution network equipment capacity and line type selection configuration optimization method and system
  • Distribution network equipment capacity and line type selection configuration optimization method and system
  • Distribution network equipment capacity and line type selection configuration optimization method and system

Examples

Experimental program
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Embodiment 1

[0071] This embodiment proposes a distribution network equipment capacity and line selection configuration optimization method, such as figure 1 As shown in FIG. 2 , it is a flow chart of the method for optimizing the distribution network equipment capacity and line type selection and configuration in this embodiment.

[0072] The distribution network equipment capacity and line selection configuration optimization method proposed in this embodiment includes the following steps:

[0073] S1. Collect distribution network frame data, historical operation data and equipment information that can be selected for planning.

[0074] S2. Establish a life cycle cost calculation model.

[0075] S3. Determine the planning scope of distribution network equipment and line selection;

[0076] S4. According to the collected distribution network frame data, historical operation data and equipment information that can be selected for planning, carry out scheme traversal and collocation based...

Embodiment 2

[0082] This embodiment proposes a distribution network equipment capacity and line selection configuration optimization method, which includes the following steps:

[0083] S1. Collect distribution network frame data, historical operation data and equipment information that can be selected for planning.

[0084] In this embodiment, the collected distribution network grid data includes the grid topology result, the length of each segment of the grid line, and the impedance value of each segment of the grid line. The collected historical operation data includes the load data of each node of the network frame on the day of the highest load in the distribution network history. The collected equipment information that can be selected for planning includes distribution transformer type, distribution transformer capacity, distribution transformer construction cost, line model, line unit impedance and line construction cost.

[0085] S2. Establish a life cycle cost calculation model....

Embodiment 3

[0134] This embodiment applies the distribution network equipment capacity and line selection configuration optimization method proposed in Embodiment 2, and uses the generalized model of a 10kV radial distribution network as a simulation example, as shown in image 3 Shown is the simulation distribution network topology diagram of this embodiment.

[0135] Among them, the planning scope of this embodiment is: the type and capacity of the distribution transformer equipment of nodes 4, 7, 10, 14, and 21, and the selection of the three-section lines of 1-10, 3-14, and 9-21. Four gradients of 3, 5, 8, and 10 years. The data information of distribution transformer equipment and lines is shown in Table 1 below.

[0136] Table 1 Data information of distribution transformer equipment and lines

[0137]

[0138] In this example, the length of the line between two adjacent nodes is 0.5km, the annual load growth rate is 5%, the discount rate is 10%, the comprehensive electricity pr...

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Abstract

The invention relates to the technical field of power system optimization, and provides a distribution network equipment capacity and line type selection configuration optimization method and system, and the method comprises the following steps: collecting power distribution network frame data, historical operation data and equipment information for planning selection; establishing a whole life cycle cost calculation model; determining a planning range of distribution network equipment and line type selection; performing scheme traversal matching based on the planning range according to the acquired power distribution network frame data, historical operation data and equipment information available for planning selection, and generating a plurality of configuration schemes; and inputting all the configuration schemes into the full-life-cycle cost calculation model, calculating the full-life-cycle cost of each configuration scheme, and selecting the configuration scheme with the minimum full-life-cycle cost as the optimal configuration scheme for output. According to the method, the purpose of considering long-term economy and safety of power distribution network planning is achieved through a full-life-cycle cost model and considering load increase safety.

Description

technical field [0001] The invention relates to the technical field of power system optimization, and more specifically, to a method and system for optimizing the capacity of distribution network equipment and line selection and configuration. Background technique [0002] With the continuous development of all walks of life, the expansion of industrial scale has brought greater demand for electricity, and there is a certain imbalance between power supply and demand in some original distribution networks, so the demand for capacity expansion of distribution networks is also increasing. How to coordinate and balance the economy and security of the grid side in the process of distribution network planning is an important research direction. [0003] At present, the existing distribution network intelligent planning method inputs the underlying data and planning parameters, and after operations such as load forecasting, substation planning, grid planning, and reactive power pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06Q10/04G06Q50/06G06F113/04G06F119/02
CPCG06F30/20G06Q50/06G06Q10/043G06F2113/04G06F2119/02
Inventor 叶欢欢陈耀廷宋莹袁昊哲戴广平李荣斌钟红梅马龙义卢验锋
Owner HUIZHOU POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CO LTD
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