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Simulation of inductive power transfer systems exposing a human body with a coupled scaled-frequency approach

Electromagnetic simulations of inductive power transfer systems (IPT) potentially exposing humans contain numerical challenges due to the involved low frequencies of the charging process in addition to complex dielectric material distributions. A viable approach involves frequency scaling for these quasi-static problems. The introduction of more complex models of IPTs and vehicles as well as of anatomically correct human body structures results in very large scale monolithic simulation problems. In this paper, a new combination of a two-step domain decomposition approach and frequency scaling is introduced. Results of this scheme are compared to those of high resolution monolithic simulations.