Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.SynchronousMachines.ComparisonPolyphase

Compare polyphase machines with three-phase machines

Information

Extends from Modelica.Icons.ExamplesPackage (Icon for packages containing runnable examples).

Package Content

Name	Description
SMPM_Inverter_Polyphase	Starting of polyphase permanent magnet synchronous machine with inverter
SMEE_Generator_Polyphase	Electrical excited polyphase synchronous machine operating as generator
SMR_Inverter_Polyphase	Starting of polyphase synchronous reluctance machine with inverter

Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.SynchronousMachines.ComparisonPolyphase.SMPM_Inverter_Polyphase

Starting of polyphase permanent magnet synchronous machine with inverter

Information

Permanent magnet synchronous machine fed by an ideal inverter

An ideal frequency inverter is modeled by using VfControllers and SignalVoltagess. Frequency is raised by a ramp, causing the permanent magnet synchronous 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 torque
• aimsM|M3.wMechanical: machine speed
• feedback.y: zero since difference of three-phase current phasor and scaled polyphase current phasor are equal

Extends from Modelica.Icons.Example (Icon for runnable examples).

Parameters

Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.SynchronousMachines.ComparisonPolyphase.SMEE_Generator_Polyphase

Electrical excited polyphase synchronous machine operating as generator

Information

Electrical excited synchronous machine as generator

Two electrically excited synchronous generators are connected to grids and driven with constant speed. Since speed is slightly smaller than synchronous speed corresponding to mains frequency, rotor angle is very slowly increased. Two equivalent machines with different numbers of phases are compared and their equal behavior is demonstrated.

Simulate for 30 seconds and plot (versus rotorAngleM3.rotorDisplacementAngle):

• aimcM|M3.tauElectrical: machine torque
• aimsM|M3.wMechanical: machine speed
• feedback.y: zero since difference of three-phase current phasor and scaled polyphase current phasor are equal

Extends from Modelica.Icons.Example (Icon for runnable examples).

Parameters

Modelica.Magnetic.FundamentalWave.Examples.BasicMachines.SynchronousMachines.ComparisonPolyphase.SMR_Inverter_Polyphase

Starting of polyphase synchronous reluctance machine with inverter

Information

Synchronous machine with reluctance rotor fed by an ideal inverter

Ideal frequency inverters are modeled by using a VfController and phase SignalVoltages. Frequency is raised by a ramp, causing the reluctance machine to start, and accelerating inertias. At time tStep a load step is applied. Two equivalent machines with different numbers of phases are compared and their equal behavior is demonstrated.

Simulate for 1.5 seconds and plot (versus time):

• aimcM|M3.tauElectrical: machine torque
• aimsM|M3.wMechanical: machine speed
• feedback.y: zero since difference of three-phase current phasor and scaled polyphase current phasor are equal

Extends from Modelica.Icons.Example (Icon for runnable examples).

Parameters