WOLFRAM SYSTEM MODELER

# DCPM_Temperature

Test example: Investigate temperature dependency of a DCPM motor

# Wolfram Language

In[1]:=
`SystemModel["Modelica.Electrical.Machines.Examples.DCMachines.DCPM_Temperature"]`
Out[1]:=

# Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

Test example: Investigate influence of armature temperature on a DCPM motor
The motor starts at no-load speed, then a load step is applied.
Beginning with the load step, the armature temperature rises exponentially from 20 degC to 80 degC.
Simulate for 3 seconds and plot (versus time):
• dcpm.ia: armature current
• dcpm.wMechanical: motor's speed
• dcpm.tauElectrical: motor's torque
• thermalAmbientDCPM.Q_flow_a: motor's armature losses
Default machine parameters are used, but:
• The armature winding material is set to Copper.
• Armature reference temperature is set to 80 degC.
• Nominal armature temperature is set to 80 degC.
So the machine is at the beginning in cold condition, ending in warm condition (with the same armature resistance as the unmodified machine).

# Parameters (6)

Va Value: 100 Type: Voltage (V) Description: Actual armature voltage Value: 100 Type: Voltage (V) Description: Actual excitation voltage Value: Modelica.Units.Conversions.from_rpm(1500) Type: AngularVelocity (rad/s) Description: No-load speed Value: 63.66 Type: Torque (N⋅m) Description: Nominal load torque Value: 0.15 Type: Inertia (kg⋅m²) Description: Load's moment of inertia Value: Description: DC machine data

# Components (9)

dcpm Type: DC_PermanentMagnet Description: Permanent magnet DC machine Type: ConstantVoltage Description: Source for constant voltage Type: Ground Description: Ground node Type: Inertia Description: 1D-rotational component with inertia Type: TorqueStep Description: Constant torque, not dependent on speed Type: ThermalAmbientDCPM Description: Thermal ambient for DC machine with permanent magnets Type: Exponentials Description: Generate a rising and falling exponential signal Type: Constant Description: Generate constant signal of type Real Description: DC machine data