Magnetic ground

Zero magnetic potential reference.

  • magnetic
  • Modelica Standard Library
  • 1 port
BlockMagnetic groundKindmagneticGroundLibraryMagnetic

Description

The zero of magnetic potential. Every magnetic circuit needs exactly one, as every electrical circuit needs a Ground.

Example

Magnetic circuits A 100-turn winding drives flux through an air gap and a core, next to magnetic sources and a variable reluctance.

1 VGroundR 1 ΩWinding 100 turnsCore fluxAir gapCoreMagnetic groundGap mmfmmf 100 AGround (mmf)R_m signalVariable reluctanceFlux (variable)Ground (variable)50 ASignal mmfGround (signal)Permeance 1 µWb/AFlux (permeance)Ground (permeance)Flux 1 mWbGround (flux)Reluctance 10⁶mmf acrossGround (reluctance)
In Gradara, select a Magnetic ground block and press F1, then choose Open example. It opens as a new model in My models, ready to run.

Also in this example:DC voltageStepGroundSine waveResistorReluctancePermeanceVariable reluctanceWindingMMF sourceControlled MMF sourceFlux sourceFlux sensorMMF sensor

Ports

Conserving terminals 1

  • 0portmagnetic

    Magnetic port, held at V_m = 0. Any flux can flow in or out.

Equations

Modelica
port.V_m = 0

Implementation

Modelica Standard Library 4.1.0Modelica.Magnetic.FluxTubes.Basic.Ground
MSL documentation

See also

Select a block in Gradara and press F1 to open its page offline.