Bond Graphs Modelling of Electromagnetic Actuators

The paper presents the model of an electromagnetic actuator, developed in 20 sim environment, by use of Bond Graph method. The software facilities are exploited by using both signal block diagram and the power bond graph elements within the same model. The models of the flux raising stage, when the armature doesn't move and the dynamic period, until the armature ends its stroke are presented. These ones take into account only the saturation of the core magnetization curve, but not its nonlinearity. The data used for simulation are from an experimental tested device, so, both calculated and measured results can be compared.