APS -Annual Meeting of the APS Four Corners Section- Event - Wind-turbine lightning protection: Electrostatic models are not sufficient

摘要

Wind turbines made of non-conducting composites currently uselightning receptors to reduce damage.Attempts to understand receptor effectivenesshave focused on electrostatic models of $vec{E}$-field around theturbine in the presence of an incoming lightning leader.We created such an electrostatic model using COMSOL,to test the hypothesis in the wind communitythat a receptor with a larger static field at this ``striking distance''is a more effective lightning interceptor.While we modeled field for a real turbine, we could not do alab test of same. Instead, a circuit board (PCB)with copper stripes (cathodes) of varied spacing (s) was fabricated.($1.1 ; cm