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Core

Model of core losses

Modelica Standard Library

	Description
	The Core model uses a constant conductance to model core loss. The input is a space phasor connector that is normally provided by the output of a space phasor component.

	Equations
	${\begin{array}{c} \{i = 0, G_{c} = 0\} & P_{ref} \leq 0 \\ \{i = G_{c} v, G_{c} = G_{c, ref}\} & otherwise \end{array}$ $lossPower = \frac{3}{2} (v \overset{&conjugate0;}{i})$ $G_{c, ref} = \frac{1}{3} \frac{P_{ref}}{V_{ref}^{2}}$

Variables

Name	Units	Description	Modelica ID
$lossPower$	$W$	Loss power leaving component via heatPort	lossPower
$G_{c}$	$S$	Core loss conductance	Gc
$i$	$A$	Two-vector space-phasor current representing complex current	i
$v$	$V$	Two-vector space-phasor voltage representing complex voltage	v

Connections

Name	Description	Modelica ID
$heatPort$	Conditional heat port	heatPort
$spacePhasor$	Space phasor connector	spacePhasor

Parameters

General Parameters

Name	Default	Units	Description	Modelica ID
turns ratio			Effective number of stator turns / effective number of rotor turns	turnsRatio
Use Heat Port	$false$		True means the heat port is enabled	useHeatPort

Losses Parameters

Name	Default	Units	Description	Modelica ID
$P_{ref}$	$0$	$W$	Reference rotor core losses when $v = V_{ref}$	PRef
$V_{ref}$		$V$	Reference inner RMS voltage	VRef

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

Electrical Library

Electrical Machines

Induction Machine Losses

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