Electromagnetic environment long-term continuous monitoring system for extra-high voltage alternating current/direct current parallel transmission line
A transmission line and electromagnetic environment technology, applied in the direction of measuring devices, instruments, etc., can solve the problems of long-term continuous monitoring of the electromagnetic environment of UHV AC-DC parallel transmission lines, mutual interference, and inaccurate monitoring data, etc., to achieve real-time analysis and Monitor and realize the effect of automatic collection
Inactive Publication Date: 2018-11-13
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +3
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is: in order to solve the problem in the prior art that the electromagnetic environment of UHV AC / DC parallel transmission lines cannot be continuously monitored for a long period of time, thereby providing a special device that saves manpower, is convenient for monitoring, and has high accuracy of monitoring results. Long-term continuous monitoring system for electromagnetic environment of high-voltage AC-DC parallel transmission lines
[0005] The present invention also solves the problem of inaccurate monitoring data due to mutual interference when multiple signal acquisition devices are placed together
Method used
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Embodiment 1
[0041] This embodiment provides a long-term continuous monitoring system for the electromagnetic environment of UHV AC-DC parallel transmission lines, such asfigure 1 with 5 shown, including:
[0042] --Track 1, arranged below the parallel transmission line 9 and perpendicular to the parallel transmission line 9, is preferably a U-shaped groove track made of PVC material, and buffer members 5 are arranged at both ends of the track 1 to prevent excessive movement of the monitoring vehicle 3;
[0043] --Marker 2, specifically a fixed pole inserted on the ground and an infrared reflective mark arranged on the fixed pole, set on both sides of track 1, said marker 2, including one side of track 1 and set on The first and last point markers 21 at both ends and the collection point markers 22 arranged equidistantly on the other side of the track 2, the collection point markers 22 are provided with more than 200 (or 300 or more), The distance between two adjacent collection point mar...
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The invention relates to an electromagnetic environment long-term continuous monitoring system for an extra-high voltage alternating current / direct current parallel transmission line. An infrared probe is used for sensing head and end point markers and collection point markers; the infrared probe can sense the markers, so that the markers can be adopted as triggers for signal acquisition and position markers, and therefore, a monitoring vehicle can reciprocate on a track and continuously collect various monitoring data (such as ground combined field strength, environmental electromagnetic field intensity, radio interference monitoring signals and noise values) through a signal acquisition device within the range of the track range; the parallel transmission line can be monitored based on analysis on the collected data signals; and the automatic collection of the data is realized, and the whole process does not require manual intervention. The system can be applied to monitoring in various meteorological environments.
Description
technical field [0001] The invention belongs to the technical field of electromagnetic environment monitoring for transmission lines, and in particular relates to a long-term continuous monitoring system for the electromagnetic environment of UHV AC / DC parallel transmission lines. Background technique [0002] my country is leading the construction of the global energy Internet, and the construction of UHV power grids ushers in a new high-speed development opportunity. With the continuous construction of UHV transmission lines in my country, the implementation of projects such as national grid connection of power systems, north-south interconnection, and west-to-east power transmission, the AC-DC parallel transmission pattern of my country's power grid has basically formed. With the rapid economic development in various places, transmission corridors are increasingly in short supply, especially in economically developed areas. Parallel erection of AC and DC lines has become ...
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IPC IPC(8): G01D21/02
CPCG01D21/02
Inventor 钱诗林寇晓适姚德贵张广洲张嵩阳张晓琴郭江何彪郭星孙周张远王磊磊李媛田旭冯浩东
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
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