Electromagnetic computation methods for lightning surge studies with emphasis on the FDTD method

This Technical Brochure aims at introducing electromagnetic computation methods (ECMs) with particular emphasis on the finite-difference time-domain (FDTD) method and showing representative applications of ECMs. The FDTD method is capable of treating complex geometries and inhomogeneities, as well as incorporating nonlinear effects and components. Therefore, the method can be applied to the study of lightning surges of a complex conductor system such as a transmission or distribution line struck by lightning or illuminated by lightning electromagnetic pulses, and can yield relatively accurate results.