A Spline-Based Partial Element Equivalent Circuit Method for Electrostatics

This contribution investigates the connection between isogeometric analysis (IgA) and partial element equivalent circuit (PEEC) method for electrostatic problems. We demonstrate that using spline-based geometry concepts from IgA allows extracting elements without an explicit meshing step. Moreover, proposed IgA–PEEC converges complex geometries up to three times faster than conventional PEEC approach and, in turn, it requires a significantly lower number of degrees freedom solve problem with comparable accuracy. The resulting is closely related boundary method. However, uses lowest-order basis functions allow straightforward physical interpretations. findings are validated by analytical example geometry, is, significant curvature, realistic model surge arrester.