packageMovingCoilActuator

Two translatory electrodynamic actuator models of different modelling depth and their comparison

Extends from Modelica.Icons.ExamplesPackage (Icon for packages containing runnable examples).

Information

Moving coil actuators are often called electrodynamic actuators and a proportional behaviour between force and current is expressed by a converter constant (see ConstantActuator). However, in a simple moving coil actuator as presented in this example there is an additional non-linear force component that is due to the increase of the inductance when the armature coil moves into the ferromagnetic stator. A simple PermeanceActuator can be used to describe this non-linear force component.

Contents

NameDescription
ForceCurrentBehaviourComparison of the force-current characteristics of both converter models with armature blocked at mid-position
ForceStrokeBehaviourForce-stroke characteristic of the permeance model at constant current
ArmatureStrokeArmature stroke of both moving coil actuator models after a voltage step at time t=0
ComponentsComponents to be used in examples