Abstract
In order to solve the problems of inaccurate and untimely monitoring and high false alarm rate in the current monitoring of the tower pole tilt attitude, this paper proposes a technology for monitoring the tower pole tilt attitude based on RTK technology of Beidou reverse network. This method uses reverse network RTK differential positioning algorithm, which can improve the positioning accuracy of the low-cost Beidou/GNSS positioning terminal and make the positioning accuracy of the tower pole tilt monitoring reach the millimeter level. In this paper, the tilt attitude information of the transmission line tower is measured and calculated by using the height and position information of the transmission line tower, and then the risk assessment is carried out, so as to control the tilt attitude and assess the risk of the transmission line tower. The actual test results show that the method can obtain the information of the tilt attitude of transmission tower pole accurately and reliably, and can be used to evaluate it, which meets the requirements of intelligent, accurate and digital management.
Highlights
Transmission line tower,the structure of lap connecting transmission line and ground, is an important part of power system and closely related to the normal operation of power system
Some scholars studied the influence of the wind on the tower rod by using mechanical analysis and analysed the dynamic characteristics and stability of the tower rod under the action of the wind [4.5,6,7], but few did abnormal monitoring according to the structure of the tower pole
How to quickly and timely obtain the tilt of the tower rod and accurately get the specific position of the related tower rod has become an urgent problem to be solved in the power system
Summary
Transmission line tower,the structure of lap connecting transmission line and ground, is an important part of power system and closely related to the normal operation of power system. Some scholars studied the influence of the wind on the tower rod by using mechanical analysis and analysed the dynamic characteristics and stability of the tower rod under the action of the wind [4.5,6,7], but few did abnormal monitoring according to the structure of the tower pole. How to quickly and timely obtain the tilt of the tower rod and accurately get the specific position of the related tower rod has become an urgent problem to be solved in the power system. Beidou high-precision positioning equipment can be used to build a tower pole tilt monitoring model to quickly and accurately monitor the deformation of the tower pole in real time, so as to solve the above problems [13]. The reverse network RTK differential positioning technology will be used to improve the positioning accuracy of low-cost Beidou/GNSS positioning terminals and make the positioning accuracy of tower rod tilt monitoring reach the millimeter level, aiming to improve the level and application range of Beidou/GNSS in monitoring of tower deformation in transmission lines
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