Modeling of large bus bars using PEEC method and circuit level simulators

This paper presents an efficient modeling approach for large bus bar systems in power electronic frequency converters using partial element equivalent circuit (PEEC) method and circuit-level simulations. Several acceleration methods have been applied to improve the computational speed and memory efficiency. The approach is verified against measurements, and used to analyze the impact of the stray impedance of bus bars on the electromagnetic and circuit behavior of a static frequency converter system.