Rotator

Rotates space phasor

Information

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

Rotates a space phasor (voltage or current) input u by the angle in negative mathematical direction. This block represents the transformation of one space phasor u from one rotating reference (coordinate) frame into another where the space phasor is y. The output reference frame leads the input reference frame by angle angle.

**Fig. 1:** Original and rotated reference frame of a space phasor

Parameters (1)

n	Value: 2 Type: Integer Description: Number of inputs (= number of outputs)

Connectors (3)

	u	Type: RealInput[n] Description: Connector of Real input signals
	y	Type: RealOutput[n] Description: Connector of Real output signals
	angle	Type: RealInput

Type: RealInput[n]

Description: Connector of Real input signals

Type: RealOutput[n]

Description: Connector of Real output signals

angle

Type: RealInput

Used in Examples (2)

SinCosEncoder

Modelica.Blocks.Examples

Evaluation of a sinusoidal encoder

ThreePhaseTwoLevel_PWM

Modelica.Electrical.PowerConverters.Examples.DCAC.PolyphaseTwoLevel

Test of pulse width modulation methods

Used in Components (5)

	RotorDisplacementAngle Modelica.Electrical.Machines.Sensors Rotor lagging angle
	ToDQ Modelica.Electrical.Machines.Utilities Transform instantaneous stator inputs to rotor fixed space phasor
	FromDQ Modelica.Electrical.Machines.Utilities Transform rotor fixed space phasor to instantaneous stator quantities
	DQToThreePhase Modelica.Electrical.Machines.Utilities Transforms dq to three-phase
	SinCosEvaluation Modelica.Electrical.Machines.Utilities Evaluation of the signals of a sin-cos-resolver