Research on windage yaw characteristics of high-voltage insulators in complex wind field

Abstract

In this paper, in order to fully consider the influence of complex wind field on the windage yaw angle of insulator string, the WRF-Fluent multi-scale calculation model is developed to simulate a windage yaw accident caused by a typhoon transit process in the Ouhai Distrct of Zhejiang, China, the dynamic response of the faulty insulator string in the wind field is analysed through two-way fluid-structure interaction calculation, and the windage yaw condition of the insulator is obtained by transient dynamics simulation. The theoretical windage yaw angle under complex wind field is also calculated according to the design standard. This paper shows that the complex wind field has an nonnegligible influence on windage yaw angle of insulator string, so it is necessary to fully consider the influence of complex wind field on high-voltage insulators in future design standard.