SMPM_Inverter_MultiPhaseStarting of multi phase permanent magnet synchronous machine with inverter |
This information is part of the Modelica Standard Library maintained by the Modelica Association.
An ideal frequency inverter is modeled by using VfControllers and SignalVoltagess. Frequency is raised by a ramp, causing the permanent magnet synchronous induction machines to start, and accelerate the inertias. Two equivalent machines with different numbers of phases are compared and their equal behavior is demonstrated.
At time tStep a load step is applied. Simulate for 1.5 seconds and plot (versus time):
aimcM|M3.tauElectrical
: machine torqueaimsM|M3.wMechanical
: machine speedfeedback.y
: zero since difference of three phase current phasor and scaled multi phase current phasor are equalVsNominal |
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 |
ground3 |
Type: Ground |
|
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star3 |
Type: Star |
|
signalVoltage3 |
Type: SignalVoltage |
|
ramp |
Type: Ramp |
|
vfController3 |
Type: VfController |
|
currentRMSsensorM |
Type: CurrentQuasiRMSSensor |
|
currentRMSsensor3 |
Type: CurrentQuasiRMSSensor |
|
terminalBoxM |
Type: TerminalBox |
|
terminalBox3 |
Type: TerminalBox |
|
smpmM |
Type: SM_PermanentMagnet |
|
smpm3 |
Type: SM_PermanentMagnet |
|
rotorAngle3 |
Type: RotorDisplacementAngle |
|
loadInertiaM |
Type: Inertia |
|
loadInertia3 |
Type: Inertia |
|
torqueStepM |
Type: TorqueStep |
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torqueStep3 |
Type: TorqueStep |
|
smpmData |
Type: SM_PermanentMagnetData |
|
signalVoltageM |
Type: SignalVoltage |
|
starM |
Type: Star |
|
groundM |
Type: Ground |
|
vfController |
Type: VfController |
|
feedback |
Type: Feedback |
|
gain |
Type: Gain |