Buildings.Electrical.PhaseSystems.ThreePhase_d
AC system covering only resistive loads with three symmetric phases
Information
This package declares the functions that are used to implement the AC three-phase balanced and purely resistive models.
Extends from DirectCurrent (DC system).
Package Content
| Name | Description |
|---|---|
 phaseVoltages
|
Return phase to neutral voltages |
| systemVoltage
|
Return system voltage as function of phase voltages |
| Inherited | |
| j
|
Direct current has no complex component |
 rotate
|
Rotate a vector of an angle theta (anti-counterclock) |
| thetaRel
|
Return absolute angle of rotating system as offset to thetaRef |
| thetaRef
|
Return absolute angle of rotating reference system |
| phase
|
Return phase |
| phaseCurrents
|
Return phase currents |
| phasePowers
|
Return phase powers |
| phasePowers_vi
|
Return phase powers |
| systemCurrent
|
Return system current as function of phase currents |
| activePower
|
Return total power as function of phase powers |
| phaseSystemName="UnspecifiedPhaseSystem" | Name of the phase system represented by the package |
| n | Number of independent voltage and current components |
| m | Number of reference angles |
 Current
|
Current for connector |
| Voltage
|
Voltage for connector |
| ReferenceAngle
|
Reference angle for connector |
| jj
|
Vectorized version of j |
 product
|
Multiply two vectors |
| divide
|
Divide two vectors |
Buildings.Electrical.PhaseSystems.ThreePhase_d.phaseVoltages
Return phase to neutral voltages
Information
Extends from Modelica.Icons.Function (Icon for functions).
Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| Voltage | V | system voltage [V] | |
| Angle | phi | 0 | phase angle [rad] |
Outputs
| Type | Name | Description |
|---|---|---|
| Voltage | v[n] | phase to neutral voltages [V] |
Modelica definition
redeclare function phaseVoltages "Return phase to neutral voltages"
extends Modelica.Icons.Function;
input SI.Voltage V "system voltage";
input SI.Angle phi=0 "phase angle";
output SI.Voltage v[n] "phase to neutral voltages";
algorithm
v := {V}/sqrt(3);
end phaseVoltages;
Buildings.Electrical.PhaseSystems.ThreePhase_d.systemVoltage
Return system voltage as function of phase voltages
Information
Extends from Modelica.Icons.Function (Icon for functions).
Inputs
| Type | Name | Default | Description |
|---|---|---|---|
| Voltage | v[n] | [V] |
Outputs
| Type | Name | Description |
|---|---|---|
| Voltage | V | [V] |
Modelica definition
redeclare function systemVoltage
"Return system voltage as function of phase voltages"
extends Modelica.Icons.Function;
input SI.Voltage v[n];
output SI.Voltage V;
algorithm
V := sqrt(3)*v[1];
end systemVoltage;