DcElectricalExcitedDataCommon parameters for DC machines |
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Information
This information is part of the Modelica Standard Library maintained by the Modelica Association.
Basic parameters of DC machines are predefined with default values.
Parameters (21)
| Jr |
Value: 0.15 Type: Inertia (kg·m²) Description: Rotor's moment of inertia |
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| Js |
Value: Jr Type: Inertia (kg·m²) Description: Stator's moment of inertia |
| VaNominal |
Value: 100 Type: Voltage (V) Description: Nominal armature voltage |
| IaNominal |
Value: 100 Type: Current (A) Description: Nominal armature current (>0..Motor, <0..Generator) |
| wNominal |
Value: 1425 * 2 * pi / 60 Type: AngularVelocity (rad/s) Description: Nominal speed |
| TaNominal |
Value: 293.15 Type: Temperature (K) Description: Nominal armature temperature |
| Ra |
Value: 0.05 Type: Resistance (Ω) Description: Armature resistance at TaRef |
| TaRef |
Value: 293.15 Type: Temperature (K) Description: Reference temperature of armature resistance |
| alpha20a |
Value: 0 Type: LinearTemperatureCoefficient20 (¹/K) Description: Temperature coefficient of armature resistance |
| La |
Value: 0.0015 Type: Inductance (H) Description: Armature inductance |
| frictionParameters |
Value: Type: FrictionParameters Description: Friction loss parameter record |
| ViNominal |
Value: VaNominal - Machines.Thermal.convertResistance(Ra, TaRef, alpha20a, TaNominal) * IaNominal - Machines.Losses.DCMachines.brushVoltageDrop(brushParameters, IaNominal) Type: Voltage (V) Description: Induced voltage at nominal operating point |
| coreParameters |
Value: Type: CoreParameters Description: Armature core loss parameter record |
| strayLoadParameters |
Value: Type: StrayLoadParameters Description: Stray load losses |
| brushParameters |
Value: Type: BrushParameters Description: Brush loss parameter record |
| IeNominal |
Value: 1 Type: Current (A) Description: Nominal excitation current |
| Re |
Value: 100 Type: Resistance (Ω) Description: Field excitation resistance at TeRef |
| TeRef |
Value: 293.15 Type: Temperature (K) Description: Reference temperature of excitation resistance |
| alpha20e |
Value: 0 Type: LinearTemperatureCoefficient20 (¹/K) Description: Temperature coefficient of excitation resistance |
| Le |
Value: 1 Type: Inductance (H) Description: Total field excitation inductance |
| sigmae |
Value: 0 Type: Real Description: Stray fraction of total excitation inductance |
Components (4)
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frictionParameters |
Type: FrictionParameters Description: Friction loss parameter record |
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coreParameters |
Type: CoreParameters Description: Armature core loss parameter record |
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strayLoadParameters |
Type: StrayLoadParameters Description: Stray load losses |
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brushParameters |
Type: BrushParameters Description: Brush loss parameter record |
Used in Examples (2)
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Modelica.Electrical.Machines.Examples.DCMachines Test example: DC with electrical excitation starting with voltage ramp |
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Modelica.Electrical.Machines.Examples.DCMachines Test example: Compare torque-speed characteristic of DC motors |