.HanserModelica.InductionMachines.IMC_withLosses .HanserModelica.InductionMachines.IMC_withLossesThis example is intended to complare simulation and measurement results of a squirrel cage induction machine.
Machine parameters are taken from a standard 18.5 kW 400 V 50 Hz motor, simulation results are compared with measurements.
See: Anton Haumer, Christian Kral, Hansjörg Kapeller, Thomas Bäuml, Johannes V. Gragger The AdvancedMachines Library: Loss Models for Electric Machines Modelica 2009, 7th International Modelica Conference
| Nominal stator current | 32.85 | A |
| Power factor | 0.898 | |
| Speed | 1462.5 | rpm |
| Electrical input | 20,443.95 | W |
| Stator copper losses | 770.13 | W |
| Stator core losses | 410.00 | W |
| Rotor copper losses | 481.60 | W |
| Stray load losses | 102.22 | W |
| Friction losses | 180.00 | W |
| Mechanical output | 18,500.00 | W |
| Efficiency | 90.49 | % |
| Nominal torque | 120.79 | Nm |
In the simulation model the following machine parameters are used:
| Stator resistance per phase | 0.56 | Ω |
| Temperature coefficient | copper | |
| Reference temperature | 20 | °C |
| Operation temperature | 90 | °C |
| Stator leakage reactance at 50 Hz | 1.52 | Ω |
| Main field reactance at 50 Hz | 66.40 | Ω |
| Rotor leakage reactance at 50 Hz | 2.31 | Ω |
| Rotor resistance per phase | 0.42 | Ω |
| Temperature coefficient | aluminium | |
| Reference temperature | 20 | °C |
| Operation temperature | 90 | °C |
| Effective number of stator turns | 270.1 |
I_sim and I_meas against Pm:
simulated and measured RMS current against mechanical powerw_sim and w_meas against Pm:
simulated and measured speed against mechanical powerpfs_sim and pfs_meas against Pm:
simulated and measured power factor against mechanical powerloss_sim/code> and loss_meas against Pm:
simulated and measured total loss against mechanical powereff_sim/code> and eff_meas against Pm:
simulated and measured efficiency against mechanical power