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A Static Optimization Method for Transmission Power of DC Grid Lines

A technology for DC grid and static optimization, which is applied in the direction of DC network circuit devices, circuit devices, electrical components, etc., and can solve problems such as in-depth research.

Active Publication Date: 2018-07-13
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the related researches are still to be in-depth

Method used

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  • A Static Optimization Method for Transmission Power of DC Grid Lines
  • A Static Optimization Method for Transmission Power of DC Grid Lines
  • A Static Optimization Method for Transmission Power of DC Grid Lines

Examples

Experimental program
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Effect test

Embodiment

[0153]When analyzing the example of balanced distribution of DC grid transmission power, according to the basic information such as regional economic development, functional layout, and infrastructure, first construct and abstract the DC grid from the macro level, and establish the power transmission requirements from point to point, line comprehensive cost, and line capacity. Relevant databases such as restrictions; secondly, establish a DC power grid transmission power balance model, write software, input DC grid information, and run the software to obtain the DC line flow distribution in a balanced state; finally, make recommendations based on the flow analysis results.

[0154] According to the prediction data related to the economy and society in a certain area, a regional DC power grid composed of 18 nodes and 25 connections and basic data are proposed, such as Figure 4 As shown, and take this as an example to verify the validity of the proposed model and algorithm of th...

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Abstract

The invention relates to a static state optimization method for a DC power grid line transmission power. The method comprises steps that 1, a DC power grid rack model is established; 2, a network equalization optimization principle for the DC power grid line transmission power is determined; 3, a static state optimization mathematics model for the DC power grid transmission power is established; and 4, an optimization mathematics model is solved. Through the method, power transmission requirements between each power source and a load can be distributed to each transmission line and a converter station, the transmission power can realize optimal distribution along DC lines, power static state distribution optimization in the whole DC power grid scope is realized, various power source, power grid and user requirements can be satisfied, and DC power grid advantages can be realized.

Description

technical field [0001] The invention relates to an optimization method of a direct current line, in particular to a static optimization method for transmission power of a direct current grid line. Background technique [0002] Different from the power flow distribution of the AC grid, which is mainly determined by the electrical parameters of the system, the transmission and distribution of the DC grid has the advantages of high controllability and grid networking. In response to the rapid development of grid technology, the types of connected power sources continue to increase, and the load characteristics are increasingly diverse. Grid service The need for upgrading is urgent, and the reform of the energy system is constantly advancing, which has incomparable advantages over the AC power grid. The development of DC power grid is an important way to meet the needs of optimal deployment of differentiated power resources and build a future "reliable, efficient, sufficient, fl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J1/00G06Q10/04G06Q50/06
Inventor 刘云
Owner STATE GRID CORP OF CHINA
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