Fundamental Wave IM Squirrel Cage
Induction Machine with Squirrel Cage
Description
Connections
Parameters
Modelica Standard Library
The Fundamental Wave IM Squirrel Cage (or IM Squirrel Cage) component models an 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
Name
Modelica ID
powerBalance
Power balance
flange
Shaft
support
Support at which the reaction torque is acting
plugsp
Positive plug of stator
plug_sp
plugsn
Negative plug of stator
plug_sn
thermalPort
Thermal port of induction machines
General Parameters
Default
Units
m
3
Number of stator phases
Jr
0.29
kg⁢m2
Rotor moment of inertia
Use Support Flange
false
True (checked) means enable stator support flange
useSupport
Js
Stator moment of inertia
Use Thermal Port
True (checked) means thermal port is enabled
useThermalPort
p
2
Number of pole pairs (Integer)
fs,nom
50
Hz
Nominal frequency
fsNominal
Ts,oper
293.15
K
Operational temperature of stator resistance
TsOperational
Effective Stator Turns
1
Effective number of stator turns
effectiveStatorTurns
Tr,oper
Operational temperature of rotor resistance
TrOperational
Lr,0
H
Rotor zero inductance w.r.t. zero size
Lrzero
Losses Parameters
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
Rs
0.03
Ω
Warm stator resistance per phase
Ts,ref
Reference temperature of stator resistance
TsRef
αs
0
1K
Temperature coefficient of stator resistance at 20 degC
alpha20s
Lsσ
[1]
Stator stray inductance per phase
Lssigma
Ls,0
Stator zero inductance
Lszero
Lm
[2]
Main field inductance
Lrσ
Rotor stray inductance per phase
Lrsigma
Rr
0.04
Warm rotor resistance per phase
Tr,ref
Reference temperature of rotor resistance
TrRef
αr
Temperature coefficient of rotor resistance at 20 degC
alpha20r
[1] 3⁢1−14152⁢π⁢fs,nom
[2] 3⁢14152⁢π⁢fs,nom
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
Magnetic FundamentalWave
Magnetic FundamentalWave Basic Induction Machines
Magnetic Library
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