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Ethernet protective system

A protection system, Ethernet technology, applied in the field of wind turbine monitoring, can solve problems such as communication failures and voltage protection, and achieve the effect of suppressing the impact

Inactive Publication Date: 2015-04-22
XUJI GRP +2
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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 to provide an Ethernet protection system to solve the problem that traditional monitoring products have not done voltage protection and EMC protection in the Ethernet communication loop, resulting in frequent communication failures during actual operation

Method used

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Embodiment Construction

[0011] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0012] An Ethernet protection system, the protection system includes: an isolation transformer, a TVS tube for suppressing burst interference, a gas discharge tube for limiting voltage pulses higher than 75V, and a voltage for converting an Ethernet controller to a network voltage Ethernet transformer and Ethernet controller; the output end of the Ethernet controller is connected to the input end of the Ethernet transformer, the output end of the Ethernet transformer is connected to the input end of the gas discharge tube, and the output end of the gas discharge tube is connected to the output of the TVS tube The output end of the TVS tube is connected to the input end of the isolation transformer.

[0013] Based on the above technical solutions and in conjunction with the accompanying drawings, the following specific implementation is given.

[0014] like ...

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PUM

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Abstract

The invention relates to an Ethernet protective system. The system comprises an isolation transformer, a transient voltage suppressor (TVS) suppressing pulse train interference, a gas discharge tube limiting voltage pulse higher than 75V, an Ethernet transformer converting the voltage of an Ethernet controller into network voltage, and the Ethernet controller. The output end of the Ethernet controller is connected with the input end of the Ethernet transformer, the output end of the Ethernet transformer is connected with the input end of the gas discharge tube, the output end of the gas discharge tube is connected with the output end of the TVS, and the output end of the TVS is connected with the input end of the isolation transformer. The Ethernet protective system can effectively prevent the impact of overvoltage on an Ethernet loop, guarantees equipment to run normally in the overvoltage environment, can effectively suppress the impact of electric pulse train on the Ethernet loop, ensures normal receiving and transmitting of signals in the electromagnetic compatibility (EMC) environment, and provides guarantee for safe and normal operation of wind generating sets.

Description

technical field [0001] The invention relates to an Ethernet protection system and belongs to the field of monitoring of wind power generating sets. Background technique [0002] Wind turbines often operate in high-altitude and offshore areas, and there are many thunderstorms, and there are multiple switching values ​​in the main control system and pitch system inside the unit, so overvoltage and electromagnetic interference have a significant impact on the equipment. In particular, electromagnetic noise and overvoltage have a great impact on the Ethernet communication circuit, resulting in the safety and stability of similar equipment cannot meet the requirements, while the mainstream wind turbine status monitoring system uploads the unit vibration information to the In the remote central control room, the entire signal transmission link is relatively complicated, and traditional monitoring products have not done voltage protection and EMC protection in the Ethernet communic...

Claims

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Application Information

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IPC IPC(8): H02H9/06
Inventor 李佳李朝锋初永刚田勇杨晓光李延青王献奎
Owner XUJI GRP