High-speed transmission system of extra-high voltage wide band domain corona current signal

A corona current, high-speed transmission technology, applied in the direction of electrical signal transmission system, non-electrical signal transmission system, signal transmission system, etc., can solve the problems that cannot meet the on-line monitoring of corona current of UHV DC test line, and achieve reliable real-time monitoring The effect of transmission, reliable transmission, and reduced attenuation

Active Publication Date: 2014-02-19
CHINA ELECTRIC POWER RES INST +2
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  • Abstract
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Problems solved by technology

Traditional data acquisition and transmission methods cannot meet the needs of on-line monitoring of corona current in UHV DC test lines, and new technologies need to be introduced to complete the safe and reliable transmission of high-voltage local end data in UHV environments

Method used

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  • High-speed transmission system of extra-high voltage wide band domain corona current signal
  • High-speed transmission system of extra-high voltage wide band domain corona current signal
  • High-speed transmission system of extra-high voltage wide band domain corona current signal

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Embodiment Construction

[0025] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] The present invention is a high-speed transmission system of wide frequency domain corona current signal, such as figure 1 As shown, it is composed of the following parts: first USB communication interface module 1, first optical transceiver receiving module 2, optical fiber and optical fiber insulator 3, second optical transceiver receiving module 4, and second USB communication interface module 5. The USB communication interface module 1 is composed of an FPGA control chip 6 , a USB2.0 chip 7 and a USB interface 8 . The optical transceiver module 2 is composed of a USB interface 9 , an FPGA chip 10 and an optical transceiver module 11 .

[0027] Such as figure 2 Shown is the structure diagram of the USB communication interface module in the present invention. Including FPGA control chip 6, USB2.0 chip 7 and USB interfac...

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Abstract

The invention relates to a wide band domain corona current signal collection system under extra-high voltage environment, and the system can realize the safe and reliable transmission with high speed and long distance of the corona current data. The invention uses a FPGA and USB interface combination technology and an optical fiber transmission technology, the collected corona current data can be transmitted with high speed to a safe position measure end. The system can realize the high speed transmission and safe measurement of the wide band domain corona current data on a high voltage side of an extra-high voltage DC test line.

Description

technical field [0001] The invention relates to the technical field of UHV power transmission in electric power systems, and specifically relates to a high-speed and long-distance signal data transmission technology, in particular to a high-speed long-distance safe and reliable transmission technology suitable for wide-frequency domain corona current signals in UHV environments. Background technique [0002] In recent years, with the continuous development of my country's economy, the production of various industries and the daily electricity consumption of residents have increased greatly. In addition to increasing the power generation, it is necessary to continuously improve the transmission capacity of electricity. The uneven distribution of my country's resources and power loads has further aggravated the construction needs of UHV power grids. The UHV power grid has a series of advantages such as long transmission distance, large transmission power, and low line loss. I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08C19/00G08C23/06
Inventor 刘元庆袁海文陆家榆吕建勋夏文岳李炼炼郭剑鞠勇赵录兴
Owner CHINA ELECTRIC POWER RES INST
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