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A digital substation independent metering system framework method

A technology of independent measurement and system architecture, applied in transmission systems, measuring electrical variables, measuring devices, etc., can solve problems such as insufficient understanding and consideration, and achieve the effects of convenient management, improved accuracy, and promotion

Active Publication Date: 2017-10-17
GUIZHOU POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the current construction process of digital substations, only the needs of technological advancement are fully considered, and data and equipment networking are vigorously promoted, but there is no sufficient understanding and consideration of the special requirements of the metering system

Method used

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  • A digital substation independent metering system framework method
  • A digital substation independent metering system framework method
  • A digital substation independent metering system framework method

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Embodiment Construction

[0027] The specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0028] Such as figure 2 As shown, the electronic current transformer and electronic voltage transformer of the present invention convert the current and voltage of the power system into digital signal output; the digital signal measured by the electronic current transformer and the electronic voltage transformer are transmitted to the data synchronization branch Framer: The data synchronization framer synchronizes the received digital signal, packs the relevant data, and transmits the packed data to the electric meter, which completes the electric energy measurement.

[0029] versus figure 1 Compared with the prior art shown, the digital signals measured by the electronic current transformer and the electronic voltage transformer of the present invention do not pass through the existing merging unit, which realizes the independence of t...

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Abstract

The invention relates to a framing method for an independent metering system of a digitalized transformer substation. The method includes the following steps: using an electronic current transformer and an electronic voltage transformer to convert current voltage in a power system into digital signals which are then output; transmitting the digital signals to a data synchronization frame divider; the data synchronization frame divider carrying out synchronous processing on received digital signals and packaging related data and then transmitting the packaged data to electricity meters; and then the electricity meters completing metering of electricity. The framing method for the independent metering system of the digitalized transformer substation realizes independence of data chains, keeps closure and digitalization of metering data and improves security of the metering data.

Description

Technical field [0001] The invention relates to an overall framework method of an independent metering system in the construction of a digital power grid, and belongs to the technical field of digital substations. Background technique [0002] In recent years, with the application of the IEC 61850 standard and the use of a large number of digital equipment, digital substations have been widely used in engineering practice. Digital substations, like conventional substations, will also have the need for electric energy measurement. As the basis of grid company's revenue, metering has an important position. However, in the current construction of digital substations, only the need for technological advancement has been fully considered, and data and equipment networking has been vigorously promoted, but the special requirements of the metering system have not been fully understood and considered. These problems urgently need to be resolved. [0003] The existing digital substation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R22/10H04L29/06
Inventor 张秋雁肖震徐宏伟武建伟
Owner GUIZHOU POWER GRID CO LTD