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Power transmission iron tower stress online monitoring system

A technology for monitoring systems and transmission towers, which is applied in the measurement of the frequency change force of the stressed vibrating element, etc., can solve the problems of high cost, complicated wiring, interference effects, etc., and achieve low cost and low price.

Inactive Publication Date: 2015-12-09
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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Problems solved by technology

[0004] The invention overcomes the disadvantages of complex wiring, high cost, complicated maintenance and being affected by electromagnetic interference

Method used

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  • Power transmission iron tower stress online monitoring system
  • Power transmission iron tower stress online monitoring system
  • Power transmission iron tower stress online monitoring system

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Embodiment Construction

[0017] See attached figure 1 , a power transmission tower stress on-line monitoring system, the present invention is characterized in that it is composed of parallel eight-way vibrating wire sensor acquisition system, excitation circuit, filter circuit, shaping circuit, STM32 processor, wireless transmission module connected in sequence, the whole monitoring The system is powered by a solar power supply module.

[0018] The vibrating wire sensor collection system of the present invention adopts a VMS-10B vibrating wire strain gauge including a temperature collection function.

[0019] The exciting circuit of the present invention uses a signal whose frequency can be adjusted to excite the exciting coil of the vibrating wire sensor, so that the vibrating wire sensor starts to vibrate.

[0020] The filter circuit of the present invention adopts a fourth-order Bessel active low-pass filter.

[0021] The real-time communication network combining the wireless transmission module ...

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Abstract

A power transmission iron tower stress online monitoring system is characterized in that eight paths of vibrating wire sensor acquisition systems which are connected in parallel, an exciting circuit, a filter circuit, a shaping circuit, an STM32 processor and a wireless transmission module are connected in sequence to form the power transmission iron tower stress online monitoring system, and the whole monitoring system is powered by a solar power supply module. The power transmission iron tower stress online monitoring system is simple, low in cost, reliable and capable of accurately measuring the stress of a power transmission iron tower; in addition, the cost is low, and batch usage of the systems in a power transmission iron tower line is facilitated. A remote wireless transmission technology overcomes the influences of electromagnetic interference of the power transmission iron tower, so that the system is convenient, rapid and reliable.

Description

technical background [0001] Due to the long-term external environmental loads such as icing load, wind load, and tower foundation looseness, the transmission line tower has a great impact on the safe and reliable operation of the transmission line, especially the wires and ground wires on both sides of the transmission tower. When the amount of ice is different, the transmission line tower will be tilted due to unbalanced tension. When the problem is serious, it will cause the tower to fall and break the line, which will not only bring huge economic losses to the society, but also seriously affect people. daily life. [0002] With the continuous upgrading and development of the power system, frequent accidents of tower collapse and disconnection of transmission lines have seriously affected the safe operation of the power grid, and large-scale transmission lines have been damaged. In order to ensure the safe operation of the power grid, it is necessary to monitor the stress d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/10
Inventor 刘荣海张轩郑欣郭新良杨迎春吴章勤许红伟
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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