FT3 to IEC61850-9-2 protocol conversion method and FT3 to IEC61850-9-2 protocol conversion system for digital metering

Abstract

The invention discloses a FT3 to IEC61850-9-2 protocol conversion method for digital metering. The method comprises the following steps: setting a preset parameter according to an input device, and receiving an FT3 data frame; acquiring the FT3 data frame according to a high frequency clock in real time, and obtaining a real-time sampled value; performing parsing based on Manchester encoding on the sampled value of the FT3 data frame to obtain received information; obtaining actual data according to the real-time sampled value, the received information, and a preset scale factor; and obtainingIEC61850-9-2 sampled value data according to an IEC61850-9-2 framing method, the actual data and the preset scale factor. The method and system sample the FT3 data frame by using Manchester coding and parse out the information carried by the FT3 data, and re-frame the information according to the IEC61850-9-2 rule, which effectively realizes the conversion of the FT3 signal specified in the IEC60044-8 standard to the digital message signal under the IEC61850-9-2 standard, and solves the problem of unmatched signals during the use of the digital measurement test equipment.

Description

technical field [0001] The present invention relates to the field of electric power technology, more specifically, to a method and system for converting FT3 to IEC61850-9-2 protocol for digital metering. Background technique [0002] The traditional electronic energy metering system is composed of electromagnetic transformers and electronic energy meters. A large number of cables are used to transmit signals, and there are many error factors. With the digital transformation of the electric energy metering system, electronic transformers (including merging units) have replaced traditional electromagnetic transformers, optical fiber communication has replaced a large number of wires and cables, and electronic energy meters have also been replaced by digital energy meters. The insulation structure of digital electric energy metering is simple and there is no danger of explosion and secondary open circuit. The digital signal is easier to share and has a strong load capacity. ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems existing in the background technology that the conversion from FT3 to IEC61850-9-2 format is completely dependent on the merging unit, which is costly and time-consuming, the present invention provides a FT3-to-IEC61850-9-2 format for digital metering. 2 Protocol conversion method and system, the method and system sample the FT3 data frame by using Manchester encoding and parse out the information carried by the FT3 data, and reframe the information according to the IEC61850-9-2 rules to realize data The conversion of format; Described a kind of FT3 that is used for digitized metering comprises to IEC61850-9-2 protocol conversion method:

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