Buildings.Electrical.PhaseSystems.PartialPhaseSystem

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Buildings.Electrical.PhaseSystems.PartialPhaseSystem

Base package of all phase systems

Information

This package declares the functions that are used to implement the different phase systems.

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

Package Content

Name	Description
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
j	Return vector rotated by 90 degrees
jj	Vectorized version of j
rotate	Rotate a vector of an angle theta (anti-counterclock)
product	Multiply two vectors
divide	Divide two vectors
thetaRel	Return absolute angle of rotating system as offset to thetaRef
thetaRef	Return absolute angle of rotating reference system
phase	Return phase
phaseVoltages	Return phase to neutral voltages
phaseCurrents	Return phase currents
phasePowers	Return phase powers
phasePowers_vi	Return phase powers
systemVoltage	Return system voltage as function of phase voltages
systemCurrent	Return system current as function of phase currents
activePower	Return total power as function of phase powers

Types and constants

  constant String phaseSystemName = "UnspecifiedPhaseSystem" 
  "Name of the phase system represented by the package";

  constant Integer n "Number of independent voltage and current components";

  constant Integer m "Number of reference angles";

  type Current = Real(unit = "A", quantity = "Current." + phaseSystemName) 
  "Current for connector";

  type Voltage = Real(unit = "V", quantity = "Voltage." + phaseSystemName) 
  "Voltage for connector";

  type ReferenceAngle "Reference angle for connector"
    extends SI.Angle;

    function equalityConstraint "Assert that angles are equal"
      extends Modelica.Icons.Function;
      input ReferenceAngle theta1[:];
      input ReferenceAngle theta2[:];
      output Real residue[0];
    algorithm 
      for i in 1:size(theta1, 1) loop
        assert(abs(theta1[i] - theta2[i]) < Modelica.Constants.eps,
          "Angles theta1 and theta2 are not equal over the connection.");
      end for;
    end equalityConstraint;
  end ReferenceAngle;

Buildings.Electrical.PhaseSystems.PartialPhaseSystem.j

Return vector rotated by 90 degrees

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

Type	Name	Default	Description
Real	x[n]

Outputs

Type	Name	Description
Real	y[n]

Modelica definition

replaceable partial function j "Return vector rotated by 90 degrees" extends Modelica.Icons.Function; input Real x[n]; output Real y[n]; end j;

Buildings.Electrical.PhaseSystems.PartialPhaseSystem.jj

Vectorized version of j

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

Type	Name	Default	Description
Real	xx[:, :]		array of voltage or current vectors

Outputs

Type	Name	Description
Real	yy[size(xx, 1), size(xx, 2)]	array of rotated vectors

Modelica definition

replaceable partial function jj "Vectorized version of j" extends Modelica.Icons.Function; input Real[:,:] xx "array of voltage or current vectors"; output Real[size(xx,1),size(xx,2)] yy "array of rotated vectors"; algorithm //yy := {j(xx[:,k]) for k in 1:size(xx,2)}; // Note: Dymola 2013 fails to expand for k in 1:size(xx,2) loop yy[:,k] := j(xx[:,k]); end for; end jj;

Buildings.Electrical.PhaseSystems.PartialPhaseSystem.rotate

Rotate a vector of an angle theta (anti-counterclock)

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

Type	Name	Default	Description
Real	x[n]
Angle	theta		[rad]

Outputs

Type	Name	Description
Real	y[n]

Modelica definition

replaceable partial function rotate "Rotate a vector of an angle theta (anti-counterclock)" extends Modelica.Icons.Function; input Real x[n]; input Modelica.SIunits.Angle theta; output Real y[n]; end rotate;

Buildings.Electrical.PhaseSystems.PartialPhaseSystem.product

Multiply two vectors

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

Type	Name	Default	Description
Real	x[n]
Real	y[n]

Outputs

Type	Name	Description
Real	z[n]

Modelica definition

replaceable partial function product "Multiply two vectors" extends Modelica.Icons.Function; input Real x[n]; input Real y[n]; output Real z[n]; end product;

Buildings.Electrical.PhaseSystems.PartialPhaseSystem.divide

Divide two vectors

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

Type	Name	Default	Description
Real	x[n]
Real	y[n]

Outputs

Type	Name	Description
Real	z[n]

Modelica definition

replaceable partial function divide "Divide two vectors" extends Modelica.Icons.Function; input Real x[n]; input Real y[n]; output Real z[n]; end divide;

Buildings.Electrical.PhaseSystems.PartialPhaseSystem.thetaRel

Return absolute angle of rotating system as offset to thetaRef

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

Type	Name	Default	Description
Angle	theta[m]		[rad]

Outputs

Type	Name	Description
Angle	thetaRel	[rad]

Modelica definition

replaceable partial function thetaRel "Return absolute angle of rotating system as offset to thetaRef" extends Modelica.Icons.Function; input SI.Angle theta[m]; output SI.Angle thetaRel; end thetaRel;

Buildings.Electrical.PhaseSystems.PartialPhaseSystem.thetaRef

Return absolute angle of rotating reference system

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

Type	Name	Default	Description
Angle	theta[m]		[rad]

Outputs

Type	Name	Description
Angle	thetaRef	[rad]

Modelica definition

replaceable partial function thetaRef "Return absolute angle of rotating reference system" extends Modelica.Icons.Function; input SI.Angle theta[m]; output SI.Angle thetaRef; end thetaRef;

Buildings.Electrical.PhaseSystems.PartialPhaseSystem.phase

Return phase

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

Type	Name	Default	Description
Real	x[n]

Outputs

Type	Name	Description
Angle	phase	[rad]

Modelica definition

replaceable partial function phase "Return phase" extends Modelica.Icons.Function; input Real x[n]; output SI.Angle phase; end phase;

Buildings.Electrical.PhaseSystems.PartialPhaseSystem.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

replaceable partial 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"; end phaseVoltages;

Buildings.Electrical.PhaseSystems.PartialPhaseSystem.phaseCurrents

Return phase currents

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

Type	Name	Default	Description
Current	I		system current [A]
Angle	phi	0	phase angle [rad]

Outputs

Type	Name	Description
Current	i[n]	phase currents [A]

Modelica definition

replaceable partial function phaseCurrents "Return phase currents" extends Modelica.Icons.Function; input SI.Current I "system current"; input SI.Angle phi = 0 "phase angle"; output SI.Current i[n] "phase currents"; end phaseCurrents;

Buildings.Electrical.PhaseSystems.PartialPhaseSystem.phasePowers

Return phase powers

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

Type	Name	Default	Description
ActivePower	P		active system power [W]
Angle	phi	0	phase angle [rad]

Outputs

Type	Name	Description
Power	p[n]	phase powers [W]

Modelica definition

replaceable partial function phasePowers "Return phase powers" extends Modelica.Icons.Function; input SI.ActivePower P "active system power"; input SI.Angle phi = 0 "phase angle"; output SI.Power p[n] "phase powers"; end phasePowers;

Buildings.Electrical.PhaseSystems.PartialPhaseSystem.phasePowers_vi

Return phase powers

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

Type	Name	Default	Description
Voltage	v[n]		phase voltages [V]
Current	i[n]		phase currents [A]

Outputs

Type	Name	Description
Power	p[n]	phase powers [W]

Modelica definition

replaceable partial function phasePowers_vi "Return phase powers" extends Modelica.Icons.Function; input SI.Voltage v[n] "phase voltages"; input SI.Current i[n] "phase currents"; output SI.Power p[n] "phase powers"; end phasePowers_vi;

Buildings.Electrical.PhaseSystems.PartialPhaseSystem.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

replaceable partial function systemVoltage "Return system voltage as function of phase voltages" extends Modelica.Icons.Function; input SI.Voltage v[n]; output SI.Voltage V; end systemVoltage;

Buildings.Electrical.PhaseSystems.PartialPhaseSystem.systemCurrent

Return system current as function of phase currents

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

Type	Name	Default	Description
Current	i[n]		[A]

Outputs

Type	Name	Description
Current	I	[A]

Modelica definition

replaceable partial function systemCurrent "Return system current as function of phase currents" extends Modelica.Icons.Function; input SI.Current i[n]; output SI.Current I; end systemCurrent;

Buildings.Electrical.PhaseSystems.PartialPhaseSystem.activePower

Return total power as function of phase powers

Information

Extends from Modelica.Icons.Function (Icon for functions).

Inputs

Type	Name	Default	Description
Voltage	v[n]		phase voltages [V]
Current	i[n]		phase currents [A]

Outputs

Type	Name	Description
ActivePower	P	active system power [W]

Modelica definition

replaceable partial function activePower "Return total power as function of phase powers" extends Modelica.Icons.Function; input SI.Voltage v[n] "phase voltages"; input SI.Current i[n] "phase currents"; output SI.ActivePower P "active system power"; end activePower;

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