Conductive wire galloping online monitoring system based on acoustic surface wave technology
A surface acoustic wave, wire galloping technology, applied in the measurement of ultrasonic/sonic/infrasonic waves, measuring devices, instruments, etc., can solve the problems of deviation of wire galloping, affecting measurement accuracy, etc., to ensure power supply, small size, high The effect of precision
Active Publication Date: 2015-07-08
POWERCHINA HEBEI ELECTRIC POWER SURVEY & DESIGN INST CO LTD
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Problems solved by technology
Using this monitoring device, although the galloping of the transmission line can be quantitatively detected, when the conductor is twisted instead of galloping, the acceleration sensor will still output measurement results, and the galloping situation of the conductor calculated by using this data will inevitably be biased. , affecting the measurement accuracy
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[0026] Below in conjunction with accompanying drawing, the present invention is described in further detail:
[0027] An online monitoring system for wire galloping based on surface acoustic wave technology, including a GPRS communication module, a data processing module, an electromagnetic wave transceiver module 3, and a surface acoustic wave chip 4. The GPRS communication module is connected to an expert system for calculating galloping status through a wireless network , the GPRS communication module, the data processing module, and the electromagnetic wave transceiver module are powered by the solar power supply module, and the surface acoustic wave chip is a passive module capable of receiving and reflecting electromagnetic waves. The data processing module is connected with the GPRS communication module and the electromagnetic wave transceiver module 3 respectively; the electromagnetic wave transceiver module 3 has at least three pieces, and the attached figure 2 There...
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The invention discloses a conductive wire galloping online monitoring system based on an acoustic surface wave technology, and the system is used for monitoring the galloping state of a power transmission conductive wire. The system comprises a GPRS communication module, a data processing module, electromagnetic wave transmit-receive modules, an acoustic surface wave chip and a solar energy power supply module which are connected with an expert system. The data processing module is respectively connected with the GPRS communication module and the electromagnetic wave transmit-receive modules. The acoustic surface wave chip is installed on the conductive wire. At least three electromagnetic wave transmit-receive modules are respectively installed on different parts of pole towers on the two ends of the conductive wire. Each electromagnetic wave transmit-receive module respectively transmits and receives electromagnetic waves to the acoustic surface wave chip. The data processing module acquires time difference in transmitting and receiving an electromagnetic wave signal. The expert system calculates spherical tracks on the acoustic surface wave chip according to the time difference and overlays the spherical tracks so that an instant position of the surface wave chip is obtained, and then the galloping state of the conductive wire is calculated. The position of the conductive wire can be directly monitored by the monitoring system, and the monitoring system is higher in accuracy than a routine monitoring system.
Description
technical field [0001] The invention relates to an on-line monitoring system based on surface acoustic wave technology, in particular to a monitoring system for monitoring galloping state of power transmission wires. Background technique [0002] my country is a country with frequent galloping of overhead transmission lines. In recent years, with the development of power grid construction, overhead transmission lines have developed in the direction of large cross-section and multiple splits. Line galloping accidents have become more frequent, causing more serious losses and seriously threatening the power grid. safe and stable operation. The galloping of the transmission line is that when the transmission line is blown by the horizontal wind, a certain air lift is generated, which induces a large amplitude (up to 10m or more), low frequency (0.1-3.0 Hz) self-excited vibration of the wire . Abnormal galloping of transmission lines will cause accidents such as wire arc burns,...
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IPC IPC(8): G01H17/00
Inventor 刘哲王炜
Owner POWERCHINA HEBEI ELECTRIC POWER SURVEY & DESIGN INST CO LTD