Device and method for real-time monitoring of dancing tension of interphase spacers of transmission lines

Abstract

The invention discloses a device and method for real-time monitoring of the dancing tension of interphase spacer rods of transmission lines, including a data acquisition pre-unit, an interphase spacer device, a communication conversion unit, and an industrial computer; the data acquisition pre-unit includes a first tension sensor, The second tension sensor and the control module, the first tension sensor is connected with the interphase spacer bar of the transmission line A phase-B phase, the second tension sensor is connected with the phase spacer bar of the transmission line B phase-C phase, and the control module is respectively connected with the The first tension sensor and the second tension sensor send the signal to the communication conversion unit through wireless communication; the communication conversion unit transmits the received data to the industrial computer through the communication cable. The present invention acquires the force of the interphase spacer in time, which is convenient for electric power workers to improve the design and layout of the interphase spacer according to the dancing force of the interphase spacer, improve its reliability and effectiveness, and finally improve the anti-dance of the interphase spacer Effect.

Description

technical field [0001] The invention relates to the technical field of ultra-high voltage power grids, in particular to a real-time monitoring device and method for the dancing tension of interphase spacer rods of transmission lines. Background technique [0002] Galloping of transmission lines is a self-excited vibration with low frequency (0.1-5 Hz) and large amplitude (20-300 times the diameter of the wire) generated by uneven ice-coated wires under wind excitation. Galloping energy of high-voltage transmission lines is large and lasts for a long time, which can easily cause line flashover, tripping, loosening and falling off of tower bolts, and in severe cases, hardware and insulators will be damaged, wire strands and wires will be broken, and even towers will collapse, leading to major power grid accidents. [0003] As an effective means of galloping suppression, interphase spacers are introduced on a large scale. The on-site interphase spacer is suspended between the ...

AI Technical Summary

Problems solved by technology

This method uses the method of image processing to monitor the galloping of the wire according to the difference shape of the template contour matching of the spacer before and after the galloping, and can realize the detection of the torsion angle of the galloping of the wire. , the quality of the captured digital image is difficult to guarantee, and it is difficult to accurately monitor the wire galloping

Moreover, this method can only monitor the galloping of the wires, and cannot monitor the mechanical properties such as tension and pressure on the interphase spacers during the galloping process.

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