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Saturating Inductor

Simple model of an inductor with saturation

 

Description

Equations

Variables

Connections

Parameters

Modelica Standard Library

Description

This model approximates the behavior of an inductor with the influence of saturation, that is, the value of the inductance depends on the current flowing through the inductor. The inductance decreases as current increases.

Equations

Ψ=Lacti

i=ip=in

v=vpvn=Ψ.

LactLiIpar=L0LataniIpar

Variables

Name

Units

Description

Modelica ID

v

V

Voltage drop across the inductor

v

vx

V

Voltage at pin x, xn,p

x.v

i

A

Current flowing from pin p to pin n

i

ix

A

Current into pin x, xn,p

x.i

Ipar

A

Constant current solved during initialization

Ipar

Lact

H

Actual inductance

Lact

Ψ

Wb

Magnetic flux

Psi

Connections

Name

Description

Modelica ID

p

Positive pin

p

n

Negative pin

n

Parameters

Name

Default

Units

Description

Modelica ID

Inom

1

A

Nominal current

Inom

Lnom

1

H

Nominal inductance at Nominal current

Lnom

L0

2Lnom

H

Inductance near current=0

Lzer

L

12Lnom

H

Inductance at large currents

Linf

Modelica Standard Library

The component described in this topic is from the Modelica Standard Library. To view the original documentation, which includes author and copyright information, click here.

See Also

Analog Components

Electrical Library

Inductors