Measuring and verifying method for energy saving amounts of power supply and distribution lines

A technology for power supply and distribution and energy saving, which is applied in the direction of measuring electricity, measuring devices, and measuring electrical variables, etc., can solve the problems of lack of uniform standards in processes and methods, inability to test and evaluate energy-saving technologies and products, and achieve energy-saving economic benefits. The effect of reducing manpower and simplifying the process

Active Publication Date: 2012-08-01
CHINA ELECTRIC POWER RES INST +1
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Problems solved by technology

[0003] At present, there is a lack of unified standards for the energy-saving energy measurement and verification procedures and methods of various energy-saving and loss-reducing transformation technologies in China,

Method used

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  • Measuring and verifying method for energy saving amounts of power supply and distribution lines
  • Measuring and verifying method for energy saving amounts of power supply and distribution lines
  • Measuring and verifying method for energy saving amounts of power supply and distribution lines

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Embodiment Construction

[0030] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Total power loss of power supply and distribution system ΔP L Including ground conductivity loss P G And line load loss P R Two parts, since the line-to-ground conductance loss is mainly caused by insulator leakage and corona, when the user's power supply voltage is 110kV and below, it can be ignored; line loss generally refers to line load loss, which is related to current carrying capacity, operating voltage, The line model, transmission distance and load distribution along the line are related. The mathematical expression is:

[0032] Δ P L = 3 I 2 R = P 2 R U 2 λ 2 = P 2 U 2 λ 2 · ρl A

[0033] It can be seen from the formula that the relationship between the factors that affect energy consumption and the examples of the different stages of the pl...

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Abstract

The invention relates to a measuring and verifying method for energy saving amounts for power supply and distribution lines, which includes determining project boundaries; determining a base period and counting report period length; tabulating; collecting data and filling in tables; determining energy efficiency parameters; and evaluating power supply and distribution line energy saving amounts based on the previous step and providing reports. According to the measuring and verifying method, energy saving amounts can be effectively monitored, the energy saving economic benefit of project reconstruction is guaranteed; energy efficient data before line reconstruction, namely, the data during the base period, is not needed to be measured or collected, and correction simulation method is not needed so as to establish line reconstruction models to obtain energy consumption reference values after the correction; instead, only line electric parameters after the reconstruction are needed to be collected so as to obtain energy saving amounts of lines. The method has the advantages that measurement and verification processes are simplified, and the worker and fund investment for measurement and verification is reduced.

Description

Technical field [0001] The invention relates to the technical field of power system energy saving, in particular to a method for measuring and verifying energy saving of power supply and distribution lines. Background technique [0002] Energy saving measurement and verification is the last step of an energy saving retrofit project. With the widespread promotion of power grid energy conservation, energy efficiency measurement and verification have become a method for grid companies to accurately and efficiently evaluate their energy-saving and loss-reducing programs. Measurement and verification are important technical guarantees in the energy-saving transformation of power grids. Periodic measurement and verification can effectively monitor energy savings, and can adjust the energy-saving transformation plan in time through data changes to ensure energy-saving benefits. [0003] At present, the domestic lack of unified standards for the energy-saving measurement and verification ...

Claims

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Application Information

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IPC IPC(8): G01R31/00
Inventor 杨建闫华光王鹤蒋利民杨雷娟何桂雄王维州刘福潮郑晶晶周喜超陈文清
Owner CHINA ELECTRIC POWER RES INST
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