Power transmission tower anti-continuous-collapse system and method
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A transmission tower and finite element technology, applied in electrical digital data processing, instruments, surveying and mapping, and navigation, etc., can solve the problems of increasing the receiving parts of transmission towers, continuous collapse of transmission towers, etc., and achieve the effect of simple structure and low manufacturing cost
Pending Publication Date: 2019-09-27
CHINA ELECTRIC POWER RES INST +2
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[0005] In order to solve the problem existing in the prior art that increasing the load of the receiving parts of the transmission tower is insufficient to avoid the continuous collapse of the trans
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Embodiment 1
[0062] This embodiment provides a progressive collapse prevention system for transmission towers, the system structure diagram is as follows figure 1 shown.
[0063] The present invention mainly is made up of following 3 parts:
[0064] Acceleration sensor, finite element analysis module and multiple wire breakers;
[0065] The acceleration sensor is installed at the measuring point of the transmission tower, collects the acceleration data of the transmission tower, obtains the acceleration data corresponding to the sampling time and sends it to the finite element analysis module;
[0066] The finite element analysis module is installed on the computer, and is used to judge whether to send a disconnection command according to the corresponding curve;
[0067] The wire breaker is installed on the cross arm of the transmission tower, and cuts off the transmission wire between the transmission towers according to the wire disconnection instruction;
[0068] The acceleration se...
Embodiment 2
[0097] This embodiment provides a method for preventing progressive collapse of a power transmission tower, including:
[0098] The acceleration sensor installed at the measuring point of the transmission tower collects the acceleration data of the transmission tower, obtains the acceleration data corresponding to the sampling time, and sends it to the finite element analysis module in real time;
[0099] The finite element analysis module installed on the computer receives the acceleration data corresponding to the sampling time in real time, and judges the dangerous state of the transmission tower according to the acceleration data. line command, otherwise, do not send;
[0100] The wire breaker installed on the cross arm of the transmission tower cuts off the transmission wire between the transmission towers according to the wire disconnection instruction.
[0101] The acceleration sensor installed at the measuring point of the transmission tower collects the acceleration ...
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Abstract
The invention discloses a power transmission tower anti-continuous-collapse system and method, and the method comprises the steps: enabling an acceleration sensor to be installed at a measurement point of a power transmission tower, collecting the acceleration data of the power transmission tower, obtaining the acceleration data corresponding to a sampling moment, and sending the acceleration data to a finite element analysis module; mounting the finite element analysis module on the computer to judge whether a disconnection instruction is sent or not according to the acceleration data; mounting a wire breaker on a cross arm of the power transmission tower to cut off power transmission wires between the power transmission towers according to the wire breaking instruction, wherein the acceleration sensor is in communication connection with the finite element analysis module and the wire breaker. According to the scheme, the acceleration sensor and the finite element analysis module are used for carrying out risk analysis on the basis of obtaining the stress condition of the power transmission tower; once the power transmission tower is in the dangerous state, the wire breaker cuts off the wire connection between the power transmission tower and the adjacent power transmission tower according to the wire breaking instruction, thereby preventing the power transmission tower from collapsing continuously due to the dragging of the wire, and greatly reducing the probability of falling of the power transmission tower.
Description
technical field [0001] The invention relates to the field of transmission tower design, in particular to a system and method for preventing progressive collapse of a transmission tower. Background technique [0002] In the transmission line, if a wire in a certain span is broken or loosened, because the wires in the adjacent span are not cut off in time, the tension of the wires on the left and right sides of the hanging point is very different, resulting in a huge imbalance. The force will bring a large load to the transmission tower, and the transmission tower will often fall due to this. Therefore, in many pictures of disasters, after the transmission tower completely collapsed, there are still many wires firmly attached to the transmission tower. After the transmission tower topples, all the wires in the span will relax, and the tension will drop sharply, causing the adjacent transmission towers to also fall. Such a vicious circle often leads to the collapse of transmi...
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