ModelingToolkitStandardLibrary: Magnetic Components

Positive magnetic port

Negative magnetic port

TwoPort(; name, V_m = 0.0, Phi = 0.0)

Partial component with magnetic potential difference between two magnetic ports p and n and magnetic flux Phi from p to n.

Parameters:

• V_m: Initial magnetic potential difference between both ports
• Phi: Initial magnetic flux from portp to portn

Ground(; name)

Zero magnetic potential.

Idle(;name)

Idle running branch.

Short(;name)

Short cut branch.

Crossing(;name)

Crossing of two branches.

This is a simple crossing of two branches. The ports portp1 and portp2 are connected, as well as portn1 and portn2.

ConstantPermeance(; name, G_m = 1.0)

Constant permeance.

Parameters:

• G_m: [H] Magnetic permeance

ConstantReluctance(; name, R_m = 1.0)

Constant reluctance.

Parameters:

• R_m: [H^-1] Magnetic reluctance

EddyCurrent(;name, Phi, rho = 0.098e-6, l = 1, A = 1)

For modelling of eddy current in a conductive magnetic flux tube. Initial magnetic flux flowing into the port_p can be set with Phi ([Wb])

Parameters:

• rho: [ohm * m] Resistivity of flux tube material (default: Iron at 20degC)
• l: [m] Average length of eddy current path
• A: [m^2] Cross sectional area of eddy current path

ElectroMagneticConverter(; name, N, Phi)

Ideal electromagnetic energy conversion.

The electromagnetic energy conversion is given by Ampere's law and Faraday's law respectively V_m = N * i N * dΦ/dt = -v

Initial magnetic flux flowing into the port_p can be set with Phi ([Wb])

Parameters:

• N: Number of turns

ConstantMagneticPotentialDifference(; name, V_m = 0.0)

Constant magnetomotive force.

Parameters:

• V_m: [A] Magnetic potential difference

ConstantMagneticFlux(; name, Phi = 0.0)

Source of constant magnetic flux.

Parameters:

• Phi: [Wb] Magnetic flux