Variable Inductor
Linear variable inductor.
blockType: AcausalElectricPowerSystems.Passive.VariableInductor
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Description
Block Variable Inductor It is a model of a linear inductor with a time-varying inductance.
The unit has the option to select the voltage coupling equation with current through an inductor when the inductance at port L is equal to .
The Equation parameter determines which of the following equations the block uses:
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Use the equation above if the inductance is defined as the ratio of the magnetic flux to steady current:
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Use the equation above if the inductance is defined as the local gradient of the flow-current curve for a given current.:
.
In the block, the conduction is turned on in parallel with the variable inductor. It can be used to represent the total conductivity of the inductor insulation. The use of conduction may be necessary to prevent computational errors in some circuit topologies, for example, when a block Variable Inductor connected in series with another inductor unit without parallel conduction.
Ports
Parameters
Equation — inductance equation of the pass block:q[<br>] V = L*dI/dt + dL/dt*I (default) | V = L*dI/dt
Select one of the following options for the inductance equation in the component:
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V = L*dI/dt + dL/dt*I— if it is assumed that the inductance is the ratio of the magnetic flux to the steady current. This option is used by default. -
V = L*dI/dt— if it is assumed that the inductance is a local gradient of the flow-current curve at a given current.
Minimum inductance L>0 — minimum inductance of the coil
1e−6 Gn (default)
The lower limit on the signal size on port L. This limitation prevents the signal from reaching a value that has no physical meaning.
Parallel conduction — parallel conduction
1e−9 1/Ohm (default)
The value of the conductivity installed parallel to the variable inductor.
Initial current — the initial value of the pass current:q[<br>] 0 (default)
The initial value of the current, A.
Dependencies
This option is used only when selecting V = L*dI/dt for the Equation parameter.
Initial magnetic flux — the initial value of the magnetic flux
0 (default)
The initial value of the magnetic flux, Wb.
Dependencies
This option is used only when selecting V = L*dI/dt + dL/dt*I for the Equation parameter.