WOLFRAM SYSTEMMODELER

MovingCoilActuator

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

Package Contents

Components

Components to be used in examples

ForceCurrentBehaviour

Comparison of the force-current characteristics of both converter models with armature blocked at mid-position

ForceStrokeBehaviour

Force-stroke characteristic of the permeance model at constant current

ArmatureStroke

Armature stroke of both moving coil actuator models after a voltage step at time t=0

Wolfram Language

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SystemModel["Modelica.Magnetic.FluxTubes.Examples.MovingCoilActuator"]
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Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

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.