ConstantMagneticPotentialDifference

Constant magnetomotive force

Information

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

Magnetic circuits under steady-state conditions, i.e., with stationary magnetic fields (change of magnetic flux dΦ/dt = 0) can be described with constant sources of a magnetic potential difference or magnetomotive force (mmf). Constant magnetic potential differences are imposed by

  • coils with stationary current (di / dt = 0) and
  • permanent magnets modelled with Thévenin's equivalent magnetic circuit.

For modelling of reluctance actuators with this source component it is assumed that the armature is fixed so that no motion-induced flux change dΦ/dt can occur.

Parameters (1)

V_m

Value:

Type: MagneticPotentialDifference (A)

Description: Magnetic potential difference

Connectors (2)

port_p

Type: PositiveMagneticPort

Description: Positive magnetic port

port_n

Type: NegativeMagneticPort

Description: Negative magnetic port

Used in Components (1)

PermeanceActuator

Modelica.Magnetic.FluxTubes.Examples.MovingCoilActuator.Components

Detailed actuator model for rough magnetic design of actuator and system simulation