IM_SquirrelCageInduction machine with squirrel cage |
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Diagram
Information
This information is part of the Modelica Standard Library maintained by the Modelica Association.
Resistances and stray inductances of the machine refer to an m-phase stator. The symmetry of the stator and rotor is assumed. The machine models take the following loss effects into account:
- 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
See also
Parameters (24)
| m |
Value: 3 Type: Integer Description: Number of stator phases |
|---|---|
| Jr |
Value: Type: Inertia (kg·m²) Description: Rotor inertia |
| useSupport |
Value: false Type: Boolean Description: Enable / disable (=fixed stator) support |
| Js |
Value: Type: Inertia (kg·m²) Description: Stator inertia |
| useThermalPort |
Value: false Type: Boolean Description: Enable / disable (=fixed temperatures) thermal port |
| p |
Value: Type: Integer Description: Number of pole pairs (Integer) |
| fsNominal |
Value: Type: Frequency (Hz) Description: Nominal frequency |
| TsOperational |
Value: Type: Temperature (K) Description: Operational temperature of stator resistance |
| Rs |
Value: Type: Resistance (Ω) Description: Stator resistance per phase at TRef |
| TsRef |
Value: Type: Temperature (K) Description: Reference temperature of stator resistance |
| alpha20s |
Value: Type: LinearTemperatureCoefficient20 (¹/K) Description: Temperature coefficient of stator resistance at 20 degC |
| effectiveStatorTurns |
Value: 1 Type: Real Description: Effective number of stator turns |
| Lssigma |
Value: Type: Inductance (H) Description: Stator stray inductance |
| Lszero |
Value: Lssigma Type: Inductance (H) Description: Stator zero inductance |
| L0 |
Value: Type: SalientInductance Description: Salient inductance of an unchorded coil |
| frictionParameters |
Value: Type: FrictionParameters Description: Friction loss parameter record |
| statorCoreParameters |
Value: Type: CoreParameters Description: Stator core loss parameter record; all parameters refer to stator side |
| strayLoadParameters |
Value: Type: StrayLoadParameters Description: Stray load loss parameter record |
| Lm |
Value: Type: Inductance (H) Description: Stator main field inductance |
| Lrsigma |
Value: Type: Inductance (H) Description: Rotor leakage inductance of equivalent m phase winding w.r.t. stator side |
| Rr |
Value: Type: Resistance (Ω) Description: Rotor resistance of equivalent m phase winding w.r.t. stator side |
| TrRef |
Value: Type: Temperature (K) Description: Reference temperature of rotor resistance |
| alpha20r |
Value: Type: LinearTemperatureCoefficient20 (¹/K) Description: Temperature coefficient of rotor resistance at 20 degC |
| TrOperational |
Value: Type: Temperature (K) Description: Operational temperature of rotor resistance |
Outputs (8)
| phiMechanical |
Default Value: flange.phi - internalSupport.phi Type: Angle (rad) Description: Mechanical angle of rotor against stator |
|---|---|
| wMechanical |
Default Value: der(phiMechanical) Type: AngularVelocity (rad/s) Description: Mechanical angular velocity of rotor against stator |
| tauElectrical |
Default Value: inertiaRotor.flange_a.tau Type: Torque (N·m) Description: Electromagnetic torque |
| tauShaft |
Default Value: -flange.tau Type: Torque (N·m) Description: Shaft torque |
| powerBalance |
Type: PowerBalanceIMC Description: Power balance |
| vs |
Default Value: plug_sp.pin.v - plug_sn.pin.v Type: Voltage[m] (V) Description: Stator instantaneous voltages |
| is |
Default Value: plug_sp.pin.i Type: Current[m] (A) Description: Stator instantaneous currents |
| ir |
Default Value: rotorCage.i Type: Current[m] (A) Description: Rotor cage currents |
Connectors (7)
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flange |
Type: Flange_a Description: Shaft |
|---|---|---|
|
support |
Type: Flange_a Description: Support at which the reaction torque is acting |
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plug_sp |
Type: PositivePlug Description: Positive plug of stator |
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plug_sn |
Type: NegativePlug Description: Negative plug of stator |
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thermalPort |
Type: ThermalPortIMC Description: Thermal port of induction machines |
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internalThermalPort |
Type: ThermalPortIMC |
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internalSupport |
Type: Support |
Components (16)
| L0 |
Type: SalientInductance Description: Salient inductance of an unchorded coil |
|
|---|---|---|
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frictionParameters |
Type: FrictionParameters Description: Friction loss parameter record |
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statorCoreParameters |
Type: CoreParameters Description: Stator core loss parameter record; all parameters refer to stator side |
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strayLoadParameters |
Type: StrayLoadParameters Description: Stray load loss parameter record |
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powerBalance |
Type: PowerBalanceIMC Description: Power balance |
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inertiaRotor |
Type: Inertia |
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inertiaStator |
Type: Inertia |
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fixed |
Type: Fixed |
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stator |
Type: SymmetricPolyphaseWinding Description: Symmetric stator winding including resistances, zero and stray inductances and core losses |
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thermalAmbient |
Type: ThermalAmbientIMC |
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groundS |
Type: Ground Description: Ground of stator magnetic circuit |
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airGap |
Type: RotorSaliencyAirGap |
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groundR |
Type: Ground Description: Ground of rotor magnetic circuit |
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strayLoad |
Type: StrayLoad |
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friction |
Type: Friction |
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rotorCage |
Type: SymmetricPolyphaseCageWinding Description: Symmetric rotor cage winding including resistances and stray inductances |
Used in Examples (15)
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Modelica.Electrical.PowerConverters.Examples.ACAC Soft start of an induction machine |
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Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.InductionMachines.ComparisonPolyphase Direct on line start of polyphase induction machine with squirrel cage |
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Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.InductionMachines Direct on line (DOL) start of induction machine with squirrel cage |
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Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.InductionMachines Induction machine with squirrel cage starting Y-D |
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Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.InductionMachines Induction machine with squirrel cage starting with transformer |
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Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.InductionMachines Induction machine with squirrel cage and inverter |
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Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.InductionMachines Induction machine with squirrel cage and inverter driving a conveyor |
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Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.InductionMachines Induction machine with squirrel cage and Steinmetz-connection |
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Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.InductionMachines Induction machine with squirrel cage and losses |
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Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.InductionMachines Steady-state initialization of induction machine with squirrel cage |
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Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines Induction machine with squirrel cage started directly on line (DOL) |
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Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines Induction machine with squirrel cage starting Y-D |
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Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines Induction machine with squirrel cage starting with transformer |
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Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines Induction machine with squirrel cage and inverter driving a conveyor |
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Modelica.Magnetic.QuasiStatic.FundamentalWave.Examples.BasicMachines.InductionMachines Steady-state initialization of induction machine with squirrel cage |