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

Permanent magnet synchronous machine fed by an ideal inverter

An ideal frequency inverter is modeled by using a VfController and a three-phase SignalVoltage. Frequency is raised by a ramp, causing the permanent magnet synchronous machine to start, and accelerate the inertias.

At time tStep a load step is applied. Simulate for 1.5 seconds and plot (versus time):

• currentRMSsensorM|E.I: equivalent RMS stator current
• smpmM|E.wMechanical: machine speed
• smpmM|E.tauElectrical: machine torque
• rotorAnglepmsmM|E.rotorDisplacementAngle: rotor displacement angle

VsNominal	Value: 100 Type: Voltage (V) Description: Nominal RMS voltage per phase
fsNominal	Value: smpmData.fsNominal Type: Frequency (Hz) Description: Nominal frequency
fKnee	Value: 50 Type: Frequency (Hz) Description: Knee frequency of V/f curve
tRamp	Value: 1 Type: Time (s) Description: Frequency ramp
T_Load	Value: 181.4 Type: Torque (N·m) Description: Nominal load torque
tStep	Value: 1.2 Type: Time (s) Description: Time of load torque step
J_Load	Value: 0.29 Type: Inertia (kg·m²) Description: Load inertia
smpmData	Value: Type: SM_PermanentMagnetData Description: Synchronous machine data