SignalMagneticPotentialDifference

Signal-controlled magnetomotive force

    SignalMagneticPotentialDifference

Library

Modelica/Magnetic/FluxTubes/Sources

Description

In electromagnetic devices, a change of a coil's magnetic flux linkage Ψ reacts on the electrical subsystem in that a voltage v is induced due to Faraday's law:

    v = - dΨ/dt

This reaction can possibly be neglected for

  • modelling of electromagnetic actuators under quasi-stationary conditions (slow current change, slow armature motion),
  • modelling of current-controlled electromagnetic actuators (ideal current source) and
  • for system simulation where the system dynamics is not governed by an electromagnetic actuator, but by the surrounding subsystems.

In these cases, the magnetic potential difference or magnetomotive force imposed by a coil can easily be modelled with a signal-controlled source. Except for the neglected dynamics, steady-state actuator forces will be calculated properly in actuator models based on these sources.

Parameters

SignalMagneticPotentialDifference_0

NameLabelDescriptionData TypeValid Values

mo_V_m

V_m

V_m

Structure

mo_V_m/fixed

fixed

Cell of scalars

true
false

mo_V_m/start

start

Cell of scalars

mo_Phi

Phi

Phi

Structure

mo_Phi/fixed

fixed

Cell of scalars

true
false

mo_Phi/start

start

Cell of scalars

Ports

NameTypeDescriptionIO TypeNumber

port_p

implicit

Positive magnetic port

input

1

port_n

implicit

Negative magnetic port

output

1

V_m

implicit

Magnetic potential difference

input

2