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A distribution network reconfiguration method with distributed power

A technology for distributed power generation and distribution network reconstruction, which is applied in data processing applications, forecasting, instruments, etc., and can solve the problem that the distribution network reconstruction method cannot be applied to the distribution network with distributed power generation.

Active Publication Date: 2018-02-06
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the problem that the distribution network reconfiguration method in the prior art cannot be applied to the distribution network with distributed power supply, and provide a distributed power supply system that can optimize the grid structure and reduce network loss. Distribution Network Reconfiguration Method

Method used

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  • A distribution network reconfiguration method with distributed power
  • A distribution network reconfiguration method with distributed power
  • A distribution network reconfiguration method with distributed power

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Experimental program
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Embodiment 1

[0130] see figure 1 , figure 2 , a distribution network reconfiguration method including distributed power generation, the method includes the following steps in sequence:

[0131] 1: Acquire the grid structure parameters and operating parameters of the IEEE69 node distribution network, and initialize the parameters of the maximum and minimum ant colony algorithm, wherein the distribution network operating parameters include the grid-connected position and capacity of the distributed power generation in the distribution network , the load size of each load node in the distribution network, the grid structure parameters of the distribution network include the voltage level of the distribution network, the topological structure of the distribution network, the resistance reactance of each line in the distribution network, the distribution network The topological structure of the power grid includes the number of each load node in the distribution network, the number of each li...

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Abstract

The invention provides a method for reconstructing a power distribution network containing a distributed power source. The method includes the steps that firstly, network structure parameters and operation parameters of the power distribution network needing to be reconstructed currently are acquired, parameters of a max-min ant algorithm are initialized, then, multiple radiation nets are formed according to the max-min ant algorithm and a spanning tree theory, transmission loss values of the formed radiation nets are calculated through the load flow of a forward-back substitution method, the minimum transmission loss value calculated this time and the network structure of the radiation net corresponding to the minimum transmission loss value are found out, the overall minimum transmission loss value and the pheromone concentration of each branch in the network structure of the radiation net corresponding to the minimum transmission loss value calculated this time are updated, the updated pheromone concentration of each branch is limited, so that one-time iteration is finished, operation is sequentially cycled until the maximum number of iteration times is finished, and finally the acquired overall minimum transmission loss value and the network structure of the radiation net corresponding to the minimum transmission loss value are output. According to the method, the power distribution network containing the distributed power source can be reconstructed and the reconstructing effect is remarkable.

Description

technical field [0001] The invention belongs to the technical field of power grid optimization, and in particular relates to a distribution network reconfiguration method including distributed power sources, which is suitable for optimizing the grid structure and reducing network loss. Background technique [0002] The distribution network generally adopts a closed-loop design and an open-loop operation, and the power flow of the distribution network also flows from the head end to the end. With the rapid development of new energy power generation in my country and more and more DGs connected to the distribution network, due to the injection of distributed power supply current, the power flow distribution of the distribution network is no longer a unidirectional flow, so the network loss of the distribution network There will also be changes. Distribution network reconfiguration refers to the reasonable switching of normally closed switches and tie switches in the network, o...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q50/06Y04S10/50
Inventor 陈峰阮博张籍杨明杜治杨东俊谭丹国光辉
Owner STATE GRID CORP OF CHINA
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