Evaluation method for photovoltaic power receptivity of power distribution network

A technology of receiving capacity and photovoltaic power, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as inability to comprehensively evaluate

Inactive Publication Date: 2014-10-15
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

At present, this field has analyzed the distribution network's ability to accept photovoltaic power from a certain aspect, and it cannot be comprehensively evaluated.

Method used

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  • Evaluation method for photovoltaic power receptivity of power distribution network
  • Evaluation method for photovoltaic power receptivity of power distribution network
  • Evaluation method for photovoltaic power receptivity of power distribution network

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Embodiment Construction

[0051] The method for evaluating the distribution network's ability to accept photovoltaic power sources in the present invention includes the following steps:

[0052] Step 1. Establish the acceptance capacity index of the distribution grid for photovoltaic power;

[0053] Step 2. Unify the magnitude of the acceptance capacity index;

[0054] Step 3. Determine the weight of the acceptance capacity index;

[0055] In addition, step 4 can be added to combine the evaluation model of the ideal point sorting method-analytic hierarchy process-entropy weight method, so as to determine the pros and cons of each scheme.

[0056] The details of each step are described below:

[0057] 1. Establish an indicator system for the acceptance capacity of distribution network for photovoltaic power

[0058] Photovoltaic grid-connection can effectively alleviate the power shortage phenomenon, but because photovoltaic power sources change the structure of the distribution network and produce s...

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Abstract

The invention discloses an evaluation method for photovoltaic power receptivity of a power distribution network. The method includes the following steps: firstly, creating indexes of the photovoltaic power receptivity of the power distribution network; secondly, performing magnitude unified processing on the indexes of the receptivity; thirdly, determining weights of the indexes of the receptivity. A provided comprehensive evaluation model for the photovoltaic power receptivity of the power distribution network considers many factors, the defect that an original model is high in subjectivity and single in evaluation perspective is overcome, and scientific bases are provided for selection of photovoltaic power connection schemes.

Description

technical field [0001] The invention relates to the field of comprehensive evaluation of power grids, in particular to a method for comprehensive evaluation of a distribution network's ability to accommodate photovoltaic power sources. Background technique [0002] The dual pressure of energy demand and environmental protection forces the governments of various countries to find a new way of power generation to replace the traditional thermal power generation. Photovoltaic power generation has been introduced into the power grid due to its advantages such as no geographical restrictions, no energy consumption, no environmental pollution, short construction period, and flexible operation mode, so as to overcome the shortcomings of traditional power generation methods. However, the connection of photovoltaic power generation to the distribution network also brings a series of negative effects, such as changing the direction of the power flow in the network, affecting the power...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 林其友李卫国任水华蒯圣宇赵武赵锋庞彦陈彦斌李涛舒晓欣黄晟蒯群
Owner STATE GRID CORP OF CHINA
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