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Wide-frequency-domain synchronous phasor transmission method and device, electronic equipment and storage medium

A technology of synchronized phasor and transmission method, which is applied in the field of wide-frequency domain synchronized phasor transmission method, device, electronic equipment and storage medium, which can solve the problems that cannot meet the coverage of the oscillation frequency band, achieve accurate and reliable sampling data information, and avoid packet loss Risk, effect of reducing channel pressure

Pending Publication Date: 2022-04-29
CHINA ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under normal circumstances, there is no need for high channel frequency (a large amount of broadband data), but if the high-frequency sampling is not used, when an accident occurs, the low-frequency sampling data before the accident cannot meet the oscillation frequency band coverage when the accident is traced back. The meaning of existence forms a challenge

Method used

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  • Wide-frequency-domain synchronous phasor transmission method and device, electronic equipment and storage medium
  • Wide-frequency-domain synchronous phasor transmission method and device, electronic equipment and storage medium
  • Wide-frequency-domain synchronous phasor transmission method and device, electronic equipment and storage medium

Examples

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Embodiment approach

[0054] Broadband measurement: Based on high-speed sampling, the unified measurement of fundamental, harmonic and interharmonic signals in the wide frequency domain of power grid signals is realized.

[0055] Broadband measurement devices: devices used for grid broadband measurement, transmission, recording and alarming.

[0056] Broadband measurement processing unit: used to receive, store and forward broadband measurement data, and also have data analysis and preprocessing functions, realize the customized transmission of original measurement data, preprocessing analysis data and diagnostic analysis result data to the main station, and receive the main station at the same time The operation command issued by the station.

[0057] Channel time-division multiplexing: TDM is time-division multiplexing. Time-division multiplexing refers to a method of transmitting multiple digital data, voice and video signals, etc. on the same communication medium at the same time through cross-...

Embodiment 1

[0063] The actual situation that the channel time division multiplexing proposed by the present invention brings communication data pressure to the WAMS master station is studied. An improved wide frequency domain synchrophasor transmission method based on channel time division multiplexing is studied. The time-division multiplexing technology itself is relatively mature, and its disadvantage is that it is not flexible enough. Although a large amount of data transmission has been realized, the requirements for hardware facilities are too high.

[0064] The method of the present invention is based on time-division multiplexing technology, which reduces the amount of conventional data transmission and reduces the data pressure of the main station. At the same time, it ensures the integrity of the multi-frequency domain data of the plant and station, and can accurately read the section data of the plant and station after oscillation and accidents occur.

[0065] Currently, the tr...

Embodiment 2

[0082] see Figure 5 As shown, the present invention provides a wide frequency domain synchrophasor transmission device, including:

[0083] The measurement unit is used to obtain the broadband measurement real-time data collected by the broadband acquisition device, and generate a long-wave recording file based on the real-time data;

[0084] The processing unit is used to send the fundamental wave sampling value of real-time data to the main station in real time, and generate dynamic data files and transient record files according to the real-time data and store them temporarily;

[0085] The instruction receiving unit receives the characteristic word instruction issued by the master station, increases the transmission frequency of the sending channel and prepares for uploading long-term wave recording files, dynamic data files and transient state wave recording files;

[0086] The transmission unit uploads the long wave recording files, dynamic data files and transient sta...

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Abstract

The invention belongs to the technical field of broadband measurement, and discloses a broadband domain synchronous phasor transmission method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring broadband measurement real-time data acquired by a broadband acquisition device, and generating a long wave recording file based on the real-time data; uploading the real-time data to a broadband processing unit; the fundamental wave sampling value of the real-time data is uploaded to a master station in real time, and a dynamic data file and a transient wave recording file are generated and temporarily stored according to the real-time data; receiving a characteristic word instruction issued by the master station, increasing the transmission frequency of an uploading channel, and preparing to upload a long wave recording file, a dynamic data file and a transient wave recording file; and uploading the long wave recording file, the dynamic data file and the transient wave recording file to a master station. According to the invention, the data processing and bus channel pressure of the master station is effectively relieved.

Description

technical field [0001] The invention belongs to the technical field of broadband measurement, and in particular relates to a method, device, electronic equipment and storage medium for synchronous phasor transmission in a broadband domain. Background technique [0002] With the continuous connection of wind farms, solar photovoltaic power stations and other new energy plants and stations, the power grid is facing many known and unknown security risks, which brings huge pressure on dispatching and operation. my country is rich in new energy resources such as wind power and solar energy. The maximum power generation of new energy once accounted for 10-30% of the load in various regions at that time. There are many power plant development companies with different implementation standards, and energy monitoring is difficult. The modern power system has shown the characteristics of multiple types of power sources, multiple forms of electric energy conversion, large number of powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q9/00
CPCH04Q9/00H04Q2209/826
Inventor 徐歆常乃超倪益民杨青窦仁晖张金虎姚志强刘筱萍李文琢任辉崔旭樊陈耿明志郝月莹徐静万泽鹏李昂
Owner CHINA ELECTRIC POWER RES INST
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