WOLFRAM SYSTEM MODELER

MotorWithCurrentControl

Synchronous machine with current controller and measurement noise

Diagram

Wolfram Language

In[1]:=

SystemModel["Modelica.Blocks.Examples.Noise.Utilities.Parts.MotorWithCurrentControl"]

Out[1]:=

Information

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

A synchronous machine with permanent magnets, current controller and measurement noise of ±0.01 rad accelerates a quadratic speed dependent load from standstill. The rms values of d- and q-current in rotor fixed coordinate system are converted to three-phase currents, and fed to the machine. The result shows that the torque is influenced by the q-current, whereas the stator voltage is influenced by the d-current.

Default machine parameters of model SM_PermanentMagnet are used.

This motor is used in the Examples.Noise.ActuatorWithNoise actuator example

Parameters (8)

VNominal	Value: 100 Type: Voltage (V) Description: Nominal RMS voltage per phase
fNominal	Value: 50 Type: Frequency (Hz) Description: Nominal frequency
f	Value: 50 Type: Frequency (Hz) Description: Actual frequency
tRamp	Value: 1 Type: Time (s) Description: Frequency ramp
TLoad	Value: 181.4 Type: Torque (N⋅m) Description: Nominal load torque
tStep	Value: 1.2 Type: Time (s) Description: Time of load torque step
JLoad	Value: 0.29 Type: Inertia (kg⋅m²) Description: Load's moment of inertia
smpmData	Value: Type: SM_PermanentMagnetData Description: Data for motor

Outputs (2)

phi_motor	Default Value: angleSensor.phi Type: Real (rad) Description: Rotational position
w	Default Value: speedSensor.w Type: Real (rad/s) Description: Rotational speed

phi_motor

Default Value: angleSensor.phi

Type: Real (rad)

Description: Rotational position

Default Value: speedSensor.w

Type: Real (rad/s)

Description: Rotational speed

Connectors (3)

	iq_rms1	Type: RealInput Description: 'input Real' as connector
	flange	Type: Flange_b Description: Right flange of shaft
	phi	Type: RealOutput Description: Absolute angle of flange as output signal

iq_rms1

Type: RealInput

Description: 'input Real' as connector

flange

Type: Flange_b

Description: Right flange of shaft

phi

Type: RealOutput

Description: Absolute angle of flange as output signal

Components (19)

	smpm	Type: SM_PermanentMagnet Description: Permanent magnet synchronous machine
	signalCurrent	Type: SignalCurrent Description: Polyphase signal current source
	star	Type: Star Description: Star-connection
	ground	Type: Ground Description: Ground node
	dqToThreePhase	Type: DQToThreePhase Description: Transforms dq to three-phase
	starM	Type: Star Description: Star-connection
	groundM	Type: Ground Description: Ground node
	terminalBox	Type: TerminalBox Description: Terminal box Y/D-connection
	rotorDisplacementAngle	Type: RotorDisplacementAngle Description: Rotor lagging angle
	angleSensor	Type: AngleSensor Description: Ideal sensor to measure the absolute flange angle
	torqueSensor	Type: TorqueSensor Description: Ideal sensor to measure the torque between two flanges (= flange_a.tau)
	speedSensor	Type: SpeedSensor Description: Ideal sensor to measure the absolute flange angular velocity
	voltageQuasiRMSSensor	Type: VoltageQuasiRMSSensor Description: Length of space phasor -> RMS voltage
	currentQuasiRMSSensor	Type: CurrentQuasiRMSSensor Description: Length of space phasor -> RMS current
	inertiaLoad	Type: Inertia Description: 1D-rotational component with inertia
	smpmData	Type: SM_PermanentMagnetData Description: Data for motor
	id	Type: Constant Description: Generate constant signal of type Real
	addNoise	Type: Add Description: Output the sum of the two inputs
	uniformNoise	Type: UniformNoise Description: Noise generator with uniform distribution