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Site selection and planning method for distributed power generation based on power supply community structure

A technology of distributed power generation and community structure, which is applied in the field of distributed power generation site selection planning based on the power supply community structure, can solve problems such as difficulty in taking into account the long-term dynamic development requirements of the system, and insufficient consideration of the security and stability requirements of the system.

Active Publication Date: 2021-11-09
XIAN JIAOTONG LIVERPOOL UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the load and power generation resources are constantly growing and changing, these methods are difficult to take into account the long-term dynamic development requirements of the system, and do not fully consider the security and stability requirements of the system

Method used

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  • Site selection and planning method for distributed power generation based on power supply community structure
  • Site selection and planning method for distributed power generation based on power supply community structure
  • Site selection and planning method for distributed power generation based on power supply community structure

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Experimental program
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Embodiment

[0053] The steps of the present invention are as image 3 Shown:

[0054] 1. First of all, for a traditional distribution network, there are only loads in the network without access to distributed power generation equipment, and parameters such as impedance and transmission capacity of all lines are determined according to its structural parameters.

[0055] 2. Calculate the equivalent impedance and equivalent transmission capacity between all nodes:

[0056] Z vw = Z' w -2Z' vw +Z ww

[0057]

[0058] Among them, Z'vv(Z'ww) is the element in row v(w) and column v(w) of the impedance matrix, and Z'vw is the element in row v and column w of the impedance matrix. P lmax Indicates the maximum power allowed to be transmitted by the transmission line l under normal conditions, F indicates the power transfer distribution factor (Power Transfer Distribution Factor), F l vw Indicates the change of the power flow on the transmission line l when the electric energy of unit p...

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Abstract

The invention discloses a site selection planning method for distributed power generation based on a power supply community structure, which includes: taking the electrical distance between a power generation node and a load node in the power grid and the composite weight of effective transmission capacity to define the equivalent power supply correlation strength between two nodes , between two power generation nodes, between two load nodes, between power generation and transmission nodes, between load and transmission nodes, the power supply correlation strength is 0; the power grid is divided into several community structures, according to the equivalent power supply correlation between two nodes Calculate the power supply correlation strength matrix of the entire network node of the power grid; calculate the difference between the power supply correlation strength between all power generation nodes and load nodes in the known network and the random network, and use the distribution scheme of the power generation node with the largest difference value as the optimal solution . The modular index of power supply is defined as the quantitative index of the structure structure of power supply community, which is applied to the site selection planning and evaluation of distributed generation, and can adapt to the dynamic balance needs of the continuous development of load and distributed generation.

Description

technical field [0001] The invention relates to the transformation and planning of a traditional power distribution network, in particular to a site selection and planning method for distributed power generation based on a power supply community structure. Background technique [0002] With the introduction of the concept of Energy Internet, the construction of user-side energy network or energy local area network has become an important issue in the development of Energy Internet. However, the resource allocation and operation mode of the existing distribution network is built according to the early planning, which cannot meet the requirements of Energy Internet. The goals of freedom, reciprocity, flexibility, and autonomy. An important challenge to be faced in the construction of smart grids and energy Internet is the deployment and development of distributed generation in traditional distribution networks. [0003] At present, there is still a lack of unified and effecti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/043G06Q50/06Y04S10/50
Inventor 魏刚赵传志吴春潮薛飞卢少锋徐晓彤
Owner XIAN JIAOTONG LIVERPOOL UNIV
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