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Electric energy collection terminal uplink channel electro-optical transmission system

An electric energy collection and collection terminal technology, applied in the electric power field, can solve the problems of instability and low collection success rate, and achieve the effects of enhanced stability, strong adaptability, and reduced intermediate loss.

Inactive Publication Date: 2020-02-14
CHENGDU POWER SUPPLY COMPANY OF STATE GRID SICHUAN ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is: the present invention provides a photoelectric transmission system for the uplink channel of the electric energy collection terminal, which solves the technical problem that the current uplink channel of the electric energy collection terminal adopts network cable transmission, which leads to low and unstable collection success rate

Method used

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  • Electric energy collection terminal uplink channel electro-optical transmission system
  • Electric energy collection terminal uplink channel electro-optical transmission system
  • Electric energy collection terminal uplink channel electro-optical transmission system

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Embodiment 1

[0026] The present embodiment will specifically illustrate the present invention.

[0027] An electrical energy collection terminal uplink channel optoelectronic transmission system, including a collection terminal side and a comprehensive data network side, the collection terminal side includes an electric energy collection terminal that collects electrical energy in a substation. In the case where lines are mixed into one terminal port 485, this embodiment uses a Langier terminal one 485 line corresponding to one terminal 485 port, which effectively solves the interference of the mixed connection of terminal ports. The on-site 485 terminal wiring is more intuitive, and the new terminal has The protocol of all meters is implemented to solve the problem that the meter data cannot be called and measured, and the terminal can be recalled and measured in real time with the main station.

[0028] The acquisition terminal side and the integrated data network side perform data trans...

Embodiment 2

[0035] In this embodiment, the 220kV Zhaojuesi substation is taken as an example. By converting the network cable output into optical fiber transmission, when the load and ambient temperature and humidity are the same, compared with the prior art, the acquisition success rate of this station is greatly improved.

[0036] Using network cable transmission, the acquisition success rate of this station is shown in Table 1:

[0037] Table 1

[0038]

[0039]

[0040] Using the optical transmission disclosed by the present invention, the acquisition success rate of this station is shown in Table 2:

[0041] Table 2

[0042] Total number of substations The number of meters successfully collected The number of meters that failed to collect Collection success rate 37 37 0 100％

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Abstract

The present invention discloses an electric energy collection terminal uplink channel electro-optical transmission system, and belongs to the field of electric power technologies. The system comprisesa collection terminal side and an integrated digital network side. The collection terminal side comprises an electric energy collection terminal for collecting electric energy of a transformer substation. The collection terminal side and the integrated digital network side perform data transmission through an optical fiber. The collection terminal side is further provided with an optical fiber modulator, used for converting electric energy data into an optical signal. The integrated digital network side is further provided with an optical fiber demodulator, used for converting the optical signal into an analog signal. Both ends of the optical fiber are separately connected to the optical fiber modulator and the optical fiber demodulator, to implement long-distance transmission of the optical signal. The electro-optical transmission system significantly reduces an intermediate loss in a long-distance transmission process of a signal, so that a collection success rate is effectively improved.

Description

technical field [0001] The present invention relates to the technical field of electric power, in particular to an electrical energy collection terminal uplink channel optoelectronic transmission system. Background technique [0002] With the continuous advancement of the construction project of the electricity information collection system, at present, the traditional network cable transmission is still used for the uplink channel of the electric energy collection terminal of the substation. This transmission mode will have greater signal attenuation when transmitting long-distance signals. Based on the confidentiality requirements of the information of the substation itself, the wireless transmission mode is not allowed to be used as a substitute in the substation. As a result, the acquisition success rate is low and unstable, and the line is often dropped, which affects the acquisition indicators and brings great trouble to on-site maintenance. SUMMARY OF THE INVENTION ...

Claims

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Application Information

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IPC IPC(8): G08C23/06
CPCG08C23/06
Inventor 江玮席盛亮江川钟庆勇何佳庄哲辛润旺王瀚黄维科
Owner CHENGDU POWER SUPPLY COMPANY OF STATE GRID SICHUAN ELECTRIC POWER