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Method for evaluating comprehensive benefits of AC/DC hybrid urban distribution network

An AC-DC hybrid technology with comprehensive benefits, applied in the field of comprehensive benefit evaluation of AC-DC hybrid urban distribution network, can solve the problems of difficulty in determining the priority of AC and DC distribution network construction and waste of funds.

Inactive Publication Date: 2016-05-11
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is difficult to determine the priority of AC and DC distribution network construction, resulting in huge waste of funds. There are still many problems in the power grid after the annual transformation, which cannot well meet the requirements of the majority of users.

Method used

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  • Method for evaluating comprehensive benefits of AC/DC hybrid urban distribution network
  • Method for evaluating comprehensive benefits of AC/DC hybrid urban distribution network
  • Method for evaluating comprehensive benefits of AC/DC hybrid urban distribution network

Examples

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Embodiment 1

[0066] like Figure 1-2 As shown, the comprehensive benefit evaluation method of the invented AC-DC hybrid urban distribution network in this example, in which the comprehensive benefit and economic evaluation of the AC-DC low-voltage distribution network is generally carried out from two aspects: technical and economic. From a technical point of view, it is necessary to meet the criteria of line loss, transmission efficiency, power quality and power supply safety. The safety of the distribution network is mainly reflected in four aspects: reliability, power supply capacity, grid structure, and operation management level; from an economic point of view, it is necessary to In line with the principle of economy, that is, to obtain the maximum benefit with a certain input or to pay the minimum input for a certain benefit, that is, the economic point of view can be measured by input and income. Each layer of indicators is supported by corresponding lower-level criterion factors. D...

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Abstract

The invention relates to a method for evaluating comprehensive benefits of an AC / DC hybrid urban distribution network. The method comprises the following steps: collecting and checking basic data; building a hierarchical structure; calculating and scoring a single index; constructing a judgment matrix and determining the weight; determining the improved weight; and determining the comprehensive grade of the power network. The method can evaluate comprehensive indexes of a current AC / DC distribution network on the basis of an analytic hierarchy process (AHP) and a delphi method (Delphi), so that the current AC / DC distribution network can be relatively scientifically and effectively analyzed; and construction and transformation of the AC / DC distribution network are guided.

Description

Technical field: [0001] The invention relates to a method for evaluating the comprehensive benefits of a distribution network, and more particularly relates to a method for evaluating the comprehensive benefits of an AC / DC hybrid urban distribution network. Background technique: [0002] With the rapid development and wide application of new energy, new materials, information technology and power electronics technology, users' requirements for power consumption, power quality and power supply reliability continue to increase, and the existing AC distribution network will face distributed new energy. The diversification of access, load and power demand, the complexity of power flow balance coordination and control, and the huge challenges in terms of power supply stability, efficiency and economy. Various energy storage devices such as wind power, photovoltaic power generation, fuel cells, electric vehicle power batteries, and supercapacitors are basically direct current, and...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
Inventor 季宇刘海涛吴鸣苏剑李洋于辉李蕊吕志鹏
Owner STATE GRID CORP OF CHINA
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