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A primary frequency modulation device analog quantity and network communication multiplexing device and method

A technology of network communication and multiplexing device, applied in the field of power grid communication, can solve the problem of external space occupation of boards and cards, and achieve the effect of saving external space

Active Publication Date: 2022-01-21
FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1) The primary frequency modulation device only supports 4-20mA hard contacts;
[0007] 2) The primary frequency modulation device only supports GB / T26865.2 network port communication;
[0009] In the existing technology, 4-20mA hard contacts and network ports must be configured, and the external space of the board is occupied by a large amount

Method used

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  • A primary frequency modulation device analog quantity and network communication multiplexing device and method
  • A primary frequency modulation device analog quantity and network communication multiplexing device and method

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Embodiment 1

[0048] This embodiment provides a primary frequency modulation device analog and network communication multiplexing device, such as figure 1 , including the primary frequency modulation device analog output and communication port circuit set in the primary frequency modulation device and the phasor measurement device analog input and communication port circuit set in the phasor measurement device, wherein:

[0049] The analog quantity output of the primary frequency modulation device and the communication port circuit include a network port A6 and a first switching module, and the analog quantity output of the primary frequency modulation device and the communication port circuit switch the output data through the first switching module in an analog quantity mode or a network mode. Port communication mode, the analog output of the primary frequency modulation device and the communication port circuit transmit the output data to the phasor measurement device through the network ...

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Abstract

The invention discloses a primary frequency modulation device analog quantity and network communication multiplexing device and method. The device includes a primary frequency modulation device analog quantity output and a communication port circuit arranged in the primary frequency modulation device and a phasor arranged in the phasor measuring device The analog quantity input and the communication port circuit of the measuring device, wherein, the way of switching the data output by using the switching module is the analog quantity output or the network port communication output. The present invention only uses one network port in the external interface, through one network port, and sets the analog quantity hard contact and network port communication, thereby saving the external space position of the board card, realizing one network port and realizing simulation through software configuration Quantitative hard contact or network port communication.

Description

technical field [0001] The invention relates to the field of power grid communication, and more specifically, to a device and method for multiplexing the analog quantity of a primary frequency modulation device and network communication. Background technique [0002] With the continuous expansion of the installed capacity of new energy, the power system is facing structural difficulties such as the decrease of the moment of inertia and the difficulty of frequency control, and the security of the power system is facing serious threats. In order to prevent sudden large-power shortages in the power grid that lead to low-frequency load shedding, causing large-scale power outages, and ensuring the safe and stable operation of the power grid, according to the "Guidelines for the Safety and Stability of Power Systems" (GB38755-2019), the power dispatching control centers of some provinces in China issued ETS [2020] No. 26 "Guiding Opinions on Promoting the Construction of Primary F...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/24H02J13/00
CPCH02J3/241H02J3/242H02J13/00006H02J13/00016Y04S40/124Y04S40/12Y02E60/00
Inventor 罗春风陈道品何子兰武利会倪伟东陈超雄谭志保王彦东谭志聪陈斯翔
Owner FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID