Data synchronization processing method for electronic mutual inductor using Manchester encoding

An electronic transformer and data synchronization technology, applied in electrical components, circuit devices, information technology support systems, etc., can solve problems such as no data involved, accurate synchronization, and synchronization indicators are difficult to meet technical requirements, and avoid transformation, The effect of fast high-precision decoding

Active Publication Date: 2011-03-09
NARI TECH CO LTD +1
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Problems solved by technology

[0004] Document 1 "Research on Data Synchronization of Electronic Transformers" (Journal of Electric Power System and Automation, April 2007, Volume 19, No. 2, Page 108) discloses a method for data synchronization in electronic transformers in substations , but the interpolation method mentioned in the literature fails to use the high-precision time synchronization signal to interpolate and sample the collected data. For devices su

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  • Data synchronization processing method for electronic mutual inductor using Manchester encoding
  • Data synchronization processing method for electronic mutual inductor using Manchester encoding
  • Data synchronization processing method for electronic mutual inductor using Manchester encoding

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[0025] The present invention will be described in further detail below with reference to the accompanying drawings and examples. The characteristics, objects and advantages of the present invention can also be seen from the description of the embodiments and the drawings.

[0026] attached figure 1 As shown, the time interval calculation module, data frame synchronization signal generator module, data decoding module, data buffer, time difference data buffer and so on are designed in FPGA.

[0027] The Manchester coded IEC60044-7 / 8 message is connected to the FPGA after photoelectric conversion, and the data frame synchronization signal generator module in the FPGA detects the start time of a certain frame message, and sends a data frame synchronization pulse at this moment. At the same time, the sampling value represented by the frame message is solved by the data decoding module; the FPGA calculates the external input clock second pulse signal (appearing at the whole second...

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Abstract

The invention discloses a method for carrying out high precision synchronous decoding processing by acquiring data of an electronic mutual inductor using Manchester encoding, which is mainly used in an intelligent or digital transformer station and belongs to the field of a power system and automation thereof. The method comprises the following steps: while decoding an IEC60044-7/8 message by using a programmable logic controller, outputting a data frame synchronizing pulse signal; carrying out interpolation on the data by using the measurement data frame synchronizing pulse signal and a clock signal; and simultaneously generating synchronous sampled data and asynchronous sampled data. The invention comprehensively utilizes the advantages of the pulse synchronization method and the interpolation method, solves the problem of data and time synchronization in the electronic mutual inductor in an intelligent or digital transformer station, and does not relate to bigger synchronous acquisition technical innovation on the electronic mutual inductor.

Description

technical field [0001] The patent of the present invention discloses a method for performing high-precision synchronous decoding processing on data collected by electronic transformers using Manchester encoding, which is mainly used in intelligent substations or digital substations, and belongs to the field of power systems and automation. Background technique [0002] As the country further accelerates the construction of intelligent grids, electronic transformers in intelligent substations have been rapidly promoted and applied due to their advantages such as small size, light weight, and wide dynamic range. Compared with traditional electromagnetic transformers, electronic transformers can use network messages in IEC60044-7 / 8 format to directly output secondary sampling value signals for use by protection and measurement and control equipment in substations, which greatly simplifies the operation of substations. Secondary cable design for mass placement. [0003] However...

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Application Information

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IPC IPC(8): H02J13/00
CPCY02E60/00Y04S10/16
Inventor 丁孝华孙国城赵景涛侯明国滕云鲁文汪鹤胡虎斌
Owner NARI TECH CO LTD
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