Information
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Extends from Modelica.Icons.UtilitiesPackage
(Icon for utility packages).
Package Contents
Information
This is a simple voltage-frequency-controller. The amplitude of the voltage is linear dependent (VNominal/fNominal
) on the frequency (input signal u
), but limited by VNominal
(nominal RMS voltage per phase). An
m
quasi static phasor signal is provided as output signal y
, representing complex voltages.
The output voltages may serve as inputs for complex voltage sources with phase input. Symmetrical voltages are assumed.
Fig. 1: Voltage vs. frequency of voltage frequency controller
|
Parameters
Type | Name | Default | Description |
---|
Integer | m | 3 | Number of phases |
Angle | orientation[m] | -Modelica.Electrical.MultiPhase.Functions.symmetricOrientation(m) | Orientation of phases |
Voltage | VNominal | | Nominal RMS voltage per phase |
Frequency | fNominal | | Nominal frequency |
Angle | BasePhase | 0 | Common phase shift |
Connectors
Type | Name | Description |
---|
output ComplexOutput | y[m] | Complex quasi static voltages (RMS) |
input RealInput | u | Frequency input (Hz) |
Information
TerminalBox: at the bottom connected to both machine plugs, connect at the top to the grid as usual,
choosing Y-connection (StarDelta=Y) or D-connection (StarDelta=D).
Parameters
Type | Name | Default | Description |
---|
Integer | m | 3 | Number of phases |
String | terminalConnection | | Choose Y=star/D=delta |
Connectors
Information
TerminalBox: at the bottom connected to both machine plugs, connect at the top to the grid as usual,
choosing Y-connection (StarDelta=Y) or D-connection (StarDelta=D).
Parameters
Type | Name | Default | Description |
---|
Integer | m | 3 | Number of phases |
final Integer | mSystems | Electrical.MultiPhase.Functions.numberOfSymmetricBaseSystems(m) |   |
final Integer | mBasic | integer(m / mSystems) |   |
String | terminalConnection | | Choose Y=star/D=delta |
Connectors
Information
Switched rheostat, used for starting induction motors with slipring rotor:
The external rotor resistance RStart
is shortened at time tStart
.
Parameters
Type | Name | Default | Description |
---|
Integer | m | 3 | Number of phases |
Resistance | RStart | | Starting resistance |
Time | tStart | | Duration of switching on the starting resistor |
Connectors
Information
This is a simple current controller.
The desired RMS values of d and q component of the quasi static space phasor current in rotor fixed coordinate system are the inputs id_rms
and iq_rms
.
Using the given rotor position input phi
, the quasi static m
phase output currents i[m]
are calculated.
The model output can be used to feed a quasi static current source with phase input to supply synchronous machines.
Parameters
Type | Name | Default | Description |
---|
Integer | m | 3 | Number of phases |
Integer | p | | Number of pole pairs |
Angle | gamma0 | 0 | Offset added to electrical rotor angle |
Connectors
Information
Simple Star-Delta-switch.
If control is false, plug_sp and plug_sn are star connected and plug_sp connected to the supply plug.
If control is true, plug_sp and plug_sn are delta connected and they are connected to the supply plug.
Parameters
Type | Name | Default | Description |
---|
Integer | m | 3 | Number of phases |
Connectors