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Optimal scheme selecting method based on distributed photovoltaic access design cluster model

A distributed photovoltaic and optimal solution technology, applied in computing, data processing applications, system integration technology, etc., can solve problems such as the inability to automatically optimize, the difficulty of comparing and selecting distributed photovoltaic access designs, and achieve the effect of convenience and optimization

Active Publication Date: 2015-08-19
STATE GRID CORP OF CHINA +2
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art, provide an optimal solution selection method based on the distributed photovoltaic access design clustering model, and solve the difficulty in comparison and selection of the distributed photovoltaic access design in the prior art, which cannot be automatically Preferred Technical Questions

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  • Optimal scheme selecting method based on distributed photovoltaic access design cluster model
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  • Optimal scheme selecting method based on distributed photovoltaic access design cluster model

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[0024] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0025] Taking Jiangsu area as an example, select 130 design schemes and parameters obtained from 13 city companies in Jiangsu. Each feature state vector has 6 attributes, and all feature vectors are divided into 13 categories, that is, N=13.

[0026] Such as figure 1 Shown is a flow chart of the present invention. The optimal solution selection method based on the distributed photovoltaic access design cluster model includes the following steps:

[0027] Step 1: Define the set Y∈{y of the existing 13 design schemes 1 ,y 2 ,y 3 ,y 4 ...y 13};

[0028] Step 2: Analyze the impact of characteristic boundary conditions such as distribution network structure, access capacity, access voltage le...

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Abstract

The invention discloses an optimal scheme selecting method based on a distributed photovoltaic access design cluster model. The optimal scheme selecting method includes steps of defining a set of N design schemes; determining state variables indicating distributed photovoltaic design characteristics; defining state vector by the state variables indicating distributed photovoltaic design characteristics; setting up the cluster model based on information entropy, projecting the integral characteristic parameter set in design scheme space, and classifying all characteristic vectors into N types by a high-dimensional categorical data subspace cluster algorithm based on information entropy; calculating distance between characteristic vectors of a newly built photovoltaic access design model and those of the current cluster model based on the current cluster model for those newly built grid-connected photovoltaic, and selecting a category where the characteristic parameters with the smallest distance are, that is, the corresponding optimal design scheme. On one hand, an existing model database can be enriched; on the other hand, designers can be quickly instructed to select the optimal scheme.

Description

technical field [0001] The invention relates to an optimal scheme selection method based on a distributed photovoltaic access design clustering model, and belongs to the technical field of photovoltaic power generation. Background technique [0002] With the rapid development of new energy, the access of distributed new energy to the distribution network is increasingly showing a high penetration rate and high density development trend. Distributed new energy is connected to the grid in different forms, and the technical requirements vary greatly. In terms of photovoltaic grid connection design, the existing "Typical Design of Distributed Photovoltaic Power Generation Connection System" has made careful consideration of various connection situations. Typical Rich design options. However, in a specific project, on-site factors such as system structure, equipment selection, technical parameters, and access methods are complex, and it is difficult for designers to quickly sele...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06Q50/06
CPCY02E40/70Y04S10/50
Inventor 柳丹袁晓冬李强
Owner STATE GRID CORP OF CHINA
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