Accounting method for carbon emission reduction of low-voltage power grid load imbalance management project

A technology for unbalanced load and carbon emission reduction, applied in multi-phase network to eliminate/reduce asymmetry, electrical components, circuit devices, etc., can solve problems such as conductor temperature burnout, achieve enhanced management, promote operating efficiency, and promote further enhanced effect

Active Publication Date: 2016-02-24
CHINA ELECTRIC POWER RES INST +2
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  • Description
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  • Application Information

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Problems solved by technology

What's more serious is that if the neutral point connection conductor flows through an excessive curren

Method used

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  • Accounting method for carbon emission reduction of low-voltage power grid load imbalance management project
  • Accounting method for carbon emission reduction of low-voltage power grid load imbalance management project
  • Accounting method for carbon emission reduction of low-voltage power grid load imbalance management project

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Embodiment

[0177] There are two main methods to control the three-phase unbalance of medium and low-voltage power grid loads. One is to install power electronic devices on the low-voltage side of the transformer, and the other is to adjust the load in the power distribution room to balance the distribution among the three phases. The project boundary of the former generally only includes transformers. Due to the use of intelligent control technology, this control measure can reduce the unbalance to zero and the effect is stable, such as image 3 . The project boundary of the latter includes the transformer and the low-voltage line connected to it. This control measure balances its distribution in the three phases by adjusting the load between phases. Although it can reduce the unbalanced degree of the three-phase load, due to the random loads connected to each phase Changes, resulting in unstable effects after governance, such as Figure 4 .

[0178] by Figure 4 For example, the appl...

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Abstract

The invention relates to an accounting method for indirect carbon emission reduction generated by imbalance management of three-phase load of a low-voltage distribution network. The method includes: analyzing the additional loss generated in a low-voltage line by three-phase load imbalance of the low-voltage distribution network; analyzing the additional loss generated in a distribution transformer by the three-phase load imbalance of the low-voltage distribution network; and after implementing management measures for the three-phase load imbalance, based on an analysis conclusion of the additional losses, calculating the carbon emission reduction of the concerned low-voltage distribution network brought by the reduction of indirect carbon emission intensity due to reduced additional losses. The accounting method can be used for registering national voluntary emission reduction methodology, evaluating the effect of carbon emission reduction of the management measures for the three-phase load imbalance of the low-voltage distribution network, and providing technical guidance for the management of carbon asset of power grid enterprises; besides, the management of the operation and optimization of medium and low voltage power grids is enhanced, further improvement of the operation efficiency of the power grids can be promoted, the target of energy saving of the power grid enterprises can be realized, and the method is directly related to the economic benefit of the power grid enterprises.

Description

technical field [0001] The invention relates to a calculation and monitoring method of carbon emission reduction, in particular to a method for calculating carbon emission reduction of a low-voltage distribution network three-phase load imbalance control project. Background technique [0002] The international standard "Specifications for the Quantification, Monitoring and Reporting of Greenhouse Gas Emission Reduction and Removal Increase at the Project Level of the Second Part of Greenhouse Gases" (ISO14064-2:2006) is aimed at projects dedicated to reducing greenhouse gas emissions or increasing greenhouse gas removal ( or project-based activities), which includes the principles and requirements for determining the baseline scenario of the project and monitoring, quantifying and reporting project activities, and provides the basis for the validation and verification of greenhouse gas projects. Quantification and monitoring of greenhouse gas emissions, removals, emission re...

Claims

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Application Information

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IPC IPC(8): H02J3/00H02J3/26
CPCY02E40/50Y02P80/10
Inventor 孟珺遐郝为民闫华光陈宋宋蒋利民郭炳庆钟鸣熊敏何桂雄苗常海黄伟郭艳飞成岭屈博张新鹤
Owner CHINA ELECTRIC POWER RES INST
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