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A Distributed Power Planning Method in Distribution Network Based on Scenario Analysis Method

A technology of distributed power supply and distribution network, applied in the direction of resources, data processing applications, system integration technology, etc., can solve the problems of inconsistent planning schemes, and achieve the effect of easy implementation and simple scene analysis principle.

Active Publication Date: 2021-06-15
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a distributed power distribution network planning method based on the scene analysis method, which solves the problem that the planning scheme in the prior art does not match the actual situation

Method used

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  • A Distributed Power Planning Method in Distribution Network Based on Scenario Analysis Method
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  • A Distributed Power Planning Method in Distribution Network Based on Scenario Analysis Method

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Embodiment 1

[0053] Such as figure 1 As shown, the present invention is a distributed power supply planning method based on a scene analysis method, and is implemented in accordance with the following steps:

[0054] Step 1, the IEEE33 node distribution network connected by distributed wind power is simulated as an example, and the distribution network structure is figure 2 Indicated. Suppose the distributed power supply is installed in 4 nodes, according to the actual wind farm data, the wind power investment cost is 8,000 yuan / kW, the photovoltaic investment cost is 2,000 yuan / kW, the equipment life cycle is 25 years, the discount rate is 8%, photovoltaic The Internet price is 0.95 yuan / (kW · h), the wind power net electricity price is 0.61 yuan / (kW · h), and the DG operating maintenance rate is 0.03.

[0055] Step 2, collecting the distributed photovoltaic force and the distributed wind power, load data; the acquisition frequency is 1 hour.

[0056] Step 3, in the sky, use the three...

Embodiment 2

[0079] Such as figure 1 As shown, the present invention is a distributed power supply planning method based on a scene analysis method, and is implemented in accordance with the following steps:

[0080] Step 1: Simulation analysis is carried out as an example in the US PG & E69 node distribution network, and the distribution network structure is Figure 12 Indicated. Suppose the distributed power supply is installed in 4 nodes, according to the actual wind farm data, the wind power investment cost is 8,000 yuan / kW, the photovoltaic investment cost is 2,000 yuan / kW, the equipment life cycle is 25 years, the discount rate is 8%, photovoltaic The Internet price is 0.95 yuan / (kW · h), the wind power net electricity price is 0.61 yuan / (kW · h), and the DG operating maintenance rate is 0.03.

[0081] Step 2, collect the distributed photovoltaic force and distributed wind power, load data; the acquisition frequency is 15 minutes.

[0082] Step 3, using the three types of data col...

Embodiment 3

[0107] Such as figure 1 As shown, the present invention is a distributed power supply planning method based on a scene analysis method, and is implemented in accordance with the following steps:

[0108] Step 1, simulation analysis is performed as an IEEE14 node distribution network as an example, and the distribution network structure is Figure 13 Indicated. Suppose the distributed power supply is installed in 4 nodes, according to the actual wind farm data, the wind power investment cost is 8,000 yuan / kW, the photovoltaic investment cost is 2,000 yuan / kW, the equipment life cycle is 25 years, the discount rate is 8%, photovoltaic The Internet price is 0.95 yuan / (kW · h), the wind power net electricity price is 0.61 yuan / (kW · h), and the DG operating maintenance rate is 0.03.

[0109] Step 2, collect the distributed photovoltaic force and the distributed wind power, load data; the acquisition frequency is 15 minutes, that is, four sets of data is collected each hour.

[...

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Abstract

The invention discloses a distributed power supply planning method in a distribution network based on a scene analysis method. Photovoltaic output and distributed wind power output and load data, and establish a scene set; introduce the cross-correlation entropy evaluation function to improve the attractor clustering algorithm to reduce the scene; establish the target model, and use the cultural gene algorithm to solve it, and finally get the distribution The optimal planning scheme of the type power supply in the distribution network. The invention can effectively simulate the distributed power supply processing and load fluctuation in actual conditions, and the planning result is more reliable; and the scene analysis principle is simple and easier to implement.

Description

Technical field [0001] The present invention belongs to the field of distributed power access planning, and in particular, the present invention relates to a distributed power supply planning method in a distributed network based distributed network based on scene analysis. Background technique [0002] Using renewable energy power is now an important measure of national energy transformation, an access to the grid in the form of a distributed power supply is one of the important ways. After the distributed power supply is connected to the distribution network, the distribution network changes from single-point power supply radiation network architecture into multipoint power supply networks, which will inevitably cause changes in the size and direction of the trend in the line. Second, due to the uncertainty of the scenery resources, the distributed power supply is connected to the distribution network, which may bring voltage fluctuations to the grid. In sufficient, effective u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCG06Q10/04G06Q10/06393G06Q50/06Y02E40/70Y04S10/50
Inventor 段建东何浩韩玉慧
Owner XIAN UNIV OF TECH
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