Investigations on the magnetic field coupling of automotive high voltage systems to determine relevant parameters for an EMR-optimized designing

摘要

The implementation of electrical drive trains in modern vehicles is a newchallenge for EMC development. This contribution depicts a variety ofinvestigations on magnetic field coupling of automotivehigh-voltage (HV) systems in order to fulfil the requirements of anEMR-optimized designing. The theoretical background is discussed within thescope of current analysis, including the determination of current paths andspectral behaviour. It furthermore presents models of shielded HV cables withparticular focus on the magnetic shielding efficiency. Derived findings arevalidated by experimental measurements of a state-of-the-art demonstrator onsystem level. Finally EMC design rules are discussed in the context ofminimized magnetic fields.