Modeling lightning surface current plates: S-PEEC analytical formulation and experimental validation

This paper presents an innovative approach based on the partial element equivalent circuit (PEEC) method and the analytical integration of its coupling equations.. Emphasis is placed on the implementation of a surface-based formalism, referred to here as S-PEEC (surface-PEEC). The theoretical principles are explained and confirmed by experimental tests on a planar mock-up. To showcase the versatility of the numerical model, various configurations—including different positions, materials, and calculation domains—are explored. A comprehensive description of the experimental setup is provided, followed by a comparison between the measured current distributions and those obtained through simulations using the S-PEEC formulation, which validates the proposed methodology.