AIM Squirrel Cage - MapleSim Help
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Fundamental Wave AIM Squirrel Cage

Asynchronous Induction Machine with Squirrel Cage

Description

The Fundamental Wave AIM Squirrel Cage (or AIM Squirrel Cage) component models an asynchronous induction machine with a squirrel cage. Resistances and stray inductances of the machine refer to an $m$ phase stator. The symmetry of the stator and rotor is assumed. The following losses are modeled:

 • heat losses in the temperature dependent stator winding resistances
 • heat losses in the temperature dependent cage resistances
 • friction losses
 • core losses (only eddy current losses, no hysteresis losses)
 • stray load losses

Connections

 Name Description Modelica ID $\mathrm{powerBalance}$ Power balance powerBalance $\mathrm{flange}$ Shaft flange $\mathrm{support}$ Support at which the reaction torque is acting support ${\mathrm{plug}}_{\mathrm{sp}}$ Positive plug of stator plug_sp ${\mathrm{plug}}_{\mathrm{sn}}$ Negative plug of stator plug_sn $\mathrm{thermalPort}$ Thermal port of induction machines thermalPort

Parameters

General Parameters

 Name Default Units Description Modelica ID $m$ $3$ Number of stator phases m ${J}_{r}$ $0.29$ $\mathrm{kg}{m}^{2}$ Rotor moment of inertia Jr Use Support Flange $\mathrm{false}$ True (checked) means enable stator support flange useSupport ${J}_{s}$ ${J}_{r}$ $\mathrm{kg}{m}^{2}$ Stator moment of inertia Js Use Thermal Port $\mathrm{false}$ True (checked) means thermal port is enabled useThermalPort $p$ $2$ Number of pole pairs (Integer) p ${f}_{s,\mathrm{nom}}$ $50$ $\mathrm{Hz}$ Nominal frequency fsNominal ${T}_{s,\mathrm{oper}}$ $293.15$ $K$ Operational temperature of stator resistance TsOperational Effective Stator Turns $1$ $1$ Effective number of stator turns effectiveStatorTurns ${T}_{r,\mathrm{oper}}$ $293.15$ $K$ Operational temperature of rotor resistance TrOperational ${L}_{r,0}$ $H$ Rotor zero inductance w.r.t. zero size Lrzero

Losses Parameters

 Name Default Units Description Modelica ID Friction Parameters Friction loss parameter record frictionParameters Stator Core Parameters Stator core loss parameter record; all parameters refer to stator side statorCoreParameters Stray Load Parameters Stray load loss parameter record strayLoadParameters

Nominal Resistances And Inductances Parameters

 Name Default Units Description Modelica ID ${R}_{s}$ $0.03$ $\mathrm{\Omega }$ Warm stator resistance per phase Rs ${T}_{s,\mathrm{ref}}$ $293.15$ $K$ Reference temperature of stator resistance TsRef ${\mathrm{\alpha }}_{s}$ $0$ $\frac{1}{K}$ Temperature coefficient of stator resistance at 20 degC alpha20s ${L}_{s\sigma }$ [1] $H$ Stator stray inductance per phase Lssigma ${L}_{s,0}$ ${L}_{s\sigma }$ $H$ Stator zero inductance Lszero ${L}_{m}$ [2] $H$ Main field inductance Lm ${L}_{r\sigma }$ [1] $H$ Rotor stray inductance per phase Lrsigma ${R}_{r}$ $0.04$ $\mathrm{\Omega }$ Warm rotor resistance per phase Rr ${T}_{r,\mathrm{ref}}$ $293.15$ $K$ Reference temperature of rotor resistance TrRef ${\mathrm{\alpha }}_{r}$ $0$ $\frac{1}{K}$ Temperature coefficient of rotor resistance at 20 degC alpha20r

[1] $\frac{3\left(1-\sqrt{\frac{14}{15}}\right)}{2\mathrm{\pi }{f}_{s,\mathrm{nom}}}$

[2] $\frac{3\sqrt{\frac{14}{15}}}{2\mathrm{\pi }{f}_{s,\mathrm{nom}}}$

 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.