With the increasingly high level of electromagnetical system integration, the modeling of both the system dynamic behavior and the detailed physics becomes necessary. VHDL-AMS, which is a powerful modeling language for hybrid DAE system, allows to describe a large range of multi-physical systems. It allows to use a single modeling approach and a single simulation tool to simulate the behavior of a complete system. The paper presents a methodology for a computer-aided generation of macro and micro electromagnetical devices for system simulation using VHDL-AMS