Efficient dynamic analysis of the high-voltage wire protecting system

Yongjun Xia; Qiang Shi; Yong Ma

doi:10.1117/12.3050314

12 December 2024 Efficient dynamic analysis of the high-voltage wire protecting system

Yongjun Xia, Qiang Shi, Yong Ma

Proceedings Volume 13419, Tenth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2024); 134191X (2024) https://doi.org/10.1117/12.3050314
Event: Tenth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2024), 2024, Lhasa, China

Abstract

In the process of construction of high-voltage transmission line, if the tension failure occurs, it will cause serious damage to the existing facilities below. For this reason, a steel structure protection device called cross-frame is needed. The accurate prediction of the wire impacting force on the cross-frame is an important design input condition. In this investigation, the Absolute Nodal Coordinate Formulation (ANCF) cable element is used to model the power transmission wire. Since the stiffness matrix is time varying, the modal truncation-based model order reduction method cannot be directly applied. In this investigation, a local linearization method is given. The whole process of the wire motion is divided into several subdomains and the first order Tylor expansion is applied on the dynamic equation within each subdomain, making it possible to perform the modal truncation of the wire. Simulation algorithm for the protecting system is developed and tested. The distribution of the velocity and stress can be obtained. The design and operation safety of the cross-frame can be improved according to the simulation results.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yongjun Xia, Qiang Shi, and Yong Ma "Efficient dynamic analysis of the high-voltage wire protecting system", Proc. SPIE 13419, Tenth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2024), 134191X (12 December 2024); https://doi.org/10.1117/12.3050314

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