Transmission line oscillation positioning method based on micro inertial measurement combination

Abstract

The invention discloses a transmission line oscillation positioning system based on micro inertial measurement combination. The transmission line oscillation positioning system comprises a monitoring center and a pole and tower monitoring host machine which are connected with each other, wherein the pole and tower monitoring host machine is wirelessly connected with at least two wireless inertialsensor nodes; and each wireless inertial sensor node comprises a triaxial acceleration sensor and a triaxial gyroscope. By the method for positioning by adopting the system, the wireless inertial sensor nodes acquire acceleration values and state space angles of a lead wire monitoring point in three directions; the monitoring center processes and analyzes the data of each monitoring point by adopting algorithms, such as Fourier transformation, a least square method, digital filtering, Kalman filtering, matrix coordinate transformation, frequency domain integral operation so as to fit to acquire an oscillation trace of a whole line, and corrects the oscillation line according to a digital model of a relation between an oscillation characteristic value and a micro meteorological condition; therefore, the precision of oscillation monitoring is improved and the most direct and intuitive monitoring of transmission line oscillation can be realized.

Description

technical field [0001] The invention belongs to the technical field of on-line monitoring of the status of power transmission and transformation equipment, and relates to a galloping positioning system for power transmission wires, in particular to a galloping positioning system for power transmission wires based on micro-inertial measurement combination, and also relates to a positioning method for the above system. Background technique [0002] In recent years, with the rapid development of UHV transmission projects in my country, the frequency and intensity of galloping accidents on overhead transmission lines have increased significantly, and galloping has become one of the most important factors threatening line safety in my country. my country is one of the areas where conductor galloping frequently occurs in the world, and galloping involves transmission lines of various voltage levels. Since 2000, serious galloping accidents have occurred in our country almost every ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a transmission wire galloping positioning system based on micro-inertial measurement combination, which solves the problem that the existing wire galloping monitoring system can only realize the qualitative analysis of the line, and cannot provide scientific information for the galloping mechanism analysis and the design of the anti-galling device. Data and basic information, and whose work is greatly affected by the environment

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