Study on the Effect of Anti-galloping Device with Cubic Stiffness and Particle Damping

Abstract The galloping of iced conductors is a common disaster overhead conductors. Most traditional anti-galloping devices lack nonlinear dynamic vibration absorber; hence, they have limited effect. In this study, we designed, optimized, and tested an electric power fitting device with cubic stiffness particle damping for ultra-high-voltage (UHV) transmission lines. We built model the coupling system comprising split devices. harmonic balance method obtained steady-state analytical solutions corresponding averaged equations. test spans in laboratory were used to design program equipment. verified accuracy harvesting effect damping. theoretical experimental results highly consistent, range (0, 2] Hz, reduced amplitude. Therefore, can effectively improve ability UHV lines, prolonging their service period.