Modelica.Electrical.Machines.SpacePhasors.Blocks

Blocks for space phasor transformation

Information

This package contains space phasor transformation blocks for use in controllers:

ToSpacePhasor: transforms a set of polyphase values to space phasor and zero sequence system
FromSpacePhasor: transforms a space phasor and zero sequence system to a set of polyphase values
Rotator: rotates a space phasor (from one coordinate system into another)
ToPolar: Converts a space phasor from rectangular coordinates to polar coordinates
FromPolar: Converts a space phasor from polar coordinates to rectangular coordinates

Space phasors are defined as vectors of length = 2, the first element representing the real part and the second element representing the imaginary part of the space phasor.

Extends from Modelica.Icons.Package (Icon for standard packages).

Package Content

Name	Description
Rotator	Rotates space phasor
ToSpacePhasor	Conversion of polyphase instantaneous values to space phasors
FromSpacePhasor	Conversion of space phasors to polyphase instantaneous values
ToPolar	Converts a space phasor to polar coordinates
FromPolar	Converts a space phasor from polar coordinates
QuasiRMS
LessThreshold	Sets angle to zero when length is below threshold

Modelica.Electrical.Machines.SpacePhasors.Blocks.Rotator

Rotates space phasor

Information

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

Extends from Modelica.Blocks.Interfaces.MIMOs (Multiple Input Multiple Output continuous control block with same number of inputs and outputs).

Parameters

Name	Description
n	Number of inputs (= number of outputs)

Connectors

Name	Description
u[n]	Connector of Real input signals
y[n]	Connector of Real output signals
angle	[rad]

Modelica.Electrical.Machines.SpacePhasors.Blocks.ToSpacePhasor

Conversion of polyphase instantaneous values to space phasors

Information

Transformation of polyphase values (of voltages or currents) to space phasor and zero sequence value.

Extends from Modelica.Blocks.Interfaces.MIMO (Multiple Input Multiple Output continuous control block).

Parameters

Name	Description
nin	Number of inputs
nout	Number of outputs
m	Number of phases

Connectors

Name	Description
u[nin]	Connector of Real input signals
y[nout]	Connector of Real output signals
zero	Zero sequence component

Modelica.Electrical.Machines.SpacePhasors.Blocks.FromSpacePhasor

Conversion of space phasors to polyphase instantaneous values

Information

Transformation of space phasor and zero sequence value to polyphase values (of voltages or currents).

Extends from Modelica.Blocks.Interfaces.MIMO (Multiple Input Multiple Output continuous control block).

Parameters

Name	Description
nin	Number of inputs
nout	Number of outputs
m	Number of phases

Connectors

Name	Description
u[nin]	Connector of Real input signals
y[nout]	Connector of Real output signals
zero	Zero sequence component

Modelica.Electrical.Machines.SpacePhasors.Blocks.ToPolar

Converts a space phasor to polar coordinates

Information

Converts a space phasor from rectangular coordinates to polar coordinates.

Extends from Modelica.Blocks.Interfaces.MIMOs (Multiple Input Multiple Output continuous control block with same number of inputs and outputs).

Parameters

Name	Description
n	Number of inputs (= number of outputs)

Connectors

Name	Description
u[n]	Connector of Real input signals
y[n]	Connector of Real output signals

Modelica.Electrical.Machines.SpacePhasors.Blocks.FromPolar

Converts a space phasor from polar coordinates

Information

Converts a space phasor from polar coordinates to rectangular coordinates.

Extends from Modelica.Blocks.Interfaces.MIMOs (Multiple Input Multiple Output continuous control block with same number of inputs and outputs).

Parameters

Name	Description
n	Number of inputs (= number of outputs)

Connectors

Name	Description
u[n]	Connector of Real input signals
y[n]	Connector of Real output signals

Modelica.Electrical.Machines.SpacePhasors.Blocks.QuasiRMS

Information

This model determines the RMS value of the input space phasor u.

Extends from Modelica.Blocks.Interfaces.MISO (Multiple Input Single Output continuous control block).

Parameters

Name	Description
nin	Number of inputs

Connectors

Name	Description
u[nin]	Connector of Real input signals
y	Connector of Real output signal

Modelica.Electrical.Machines.SpacePhasors.Blocks.LessThreshold

Sets angle to zero when length is below threshold

Information

Extends from Modelica.Blocks.Interfaces.MISO (Multiple Input Single Output continuous control block).

Parameters

Name	Description
nin	Number of inputs
threshold	Threshold

Connectors

Name	Description
u[nin]	Connector of Real input signals
y	Connector of Real output signal

Automatically generated Thu Oct 1 16:07:42 2020.