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Transmission network planning method considering load transfer capability of distribution network

A load transfer and transmission network technology, applied in data processing applications, instruments, calculations, etc., can solve problems such as mismatching power transmission and distribution capabilities

Active Publication Date: 2019-02-22
STATE GRID CORP OF CHINA +3
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a transmission network planning method that considers the load transfer capacity of the distribution network to solve the problem of mismatching power transmission and distribution capabilities in the prior art

Method used

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  • Transmission network planning method considering load transfer capability of distribution network
  • Transmission network planning method considering load transfer capability of distribution network
  • Transmission network planning method considering load transfer capability of distribution network

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Embodiment 1

[0141] A transmission grid planning method that considers the load transfer capacity of the distribution network, which is carried out in sequence according to the following steps:

[0142] Step 1. Collect the conventional technical parameters of the main network. The conventional technical parameters of the main network include node parameters, transmission corridor parameters, and unit operating parameters. The node parameters include the number of nodes, the active load at each node, and the capacity of the substation. , Load transfer cost, maximum and minimum unit output, and maximum voltage power angle. The transmission corridor parameters include the number of transmission corridors, the number of existing branches of each transmission corridor, the maximum number of branches that can be built, and the head end Nodes and end nodes, reactance of a single branch, maximum power flow of a single branch, and line construction cost of a single branch. The unit operating parameters...

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Abstract

A transmission network planning method considering load transfer capability of distribution network is presented. The method first constructs the initial model of the transmission network planning considering the ground state and the N-1 expected fault according to the conventional technical parameters of the main network, and establishes a load transfer model, and then the load transfer model iscombined with the initial model of the transmission network planning considering the ground state and the N-1 expected fault to obtain the transmission network planning model, and the solver algorithmis used to solve the model at last. This design not only takes into account the safety and economic requirements of the system, but also reduces the difficulty of solving the model.

Description

Technical field [0001] The invention belongs to the field of distribution network analysis and planning, and specifically relates to a transmission network planning method considering the load transfer capacity of the distribution network. Background technique [0002] Scientific and reasonable grid planning is a prerequisite for ensuring the safety, reliability and economy of the power system. Grid planning needs to "make good use of increments and revitalize the stock" to give full play to the power transmission and distribution capabilities of the grid. As my country's economy enters a new normal and the reform of the power system advances, my country's power grid development and investment are subject to certain constraints. However, in practice, people generally adopt a hierarchical planning strategy for each voltage level system, and use different methods for planning for different voltage levels of the grid, and less consider the coordination between the main distribution...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06313G06Q10/0637G06Q50/06
Inventor 刘巨郑倩薇蒋霖杨东俊杜治艾小猛赵红生王博姚伟文劲宇
Owner STATE GRID CORP OF CHINA
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