Buildings.Electrical.Types

This package contains new types used within the Electrical package

Information

This package contains type definitions.

Extends from Modelica.Icons.TypesPackage (Icon for packages containing type definitions).

Package Content

Name	Description
CableMode	Enumeration that defines how a cable can be parameterized
CharacteristicReactance	Reactance per unit length
CharacteristicResistance	Resistance per unit length
InitMode	Enumeration that defines the type of initialization assumption can be used for a load model
Load	Enumeration that defines the modeling assumption of the load.
LoadConnection	Enumeration that defines the type of connection can be used for three-phase unbalanced systems
PerUnit	Used to represent electric quantities with respect to reference value
VoltageLevel	Enumeration that defines the type of voltage level

Types and constants

  type CableMode = enumeration(
    automatic   "Select automatically the size of the cable",
    commercial   "Select the cable from a list of commercial options")
    "Enumeration that defines how a cable can be parameterized";

  type CharacteristicReactance =  Real (final quantity="Reactance per meter",  final unit="Ohm/m")
    "Reactance per unit length";

  type CharacteristicResistance = Real (final quantity="Resistance per meter", final unit="Ohm/m")
    "Resistance per unit length";

  type InitMode = enumeration(
    zero_current   "Assume i=0 during homotopy initialization",
    linearized   "Uses linear model during homotopy initialization")
    "Enumeration that defines the type of initialization assumption can be used for a load model";

  type Load = enumeration(
    FixedZ_steady_state   "Fixed Z, steady-state",
    FixedZ_dynamic   "Fixed Z, dynamic",
    VariableZ_P_input   "Variable Z, P input",
    VariableZ_y_input   "Variable Z, y input")
    "Enumeration that defines the modeling assumption of the load.";

  type LoadConnection = enumeration(
    wye_to_wyeg   "Wye to wye grounded",
    wye_to_delta   "Wye to delta")
    "Enumeration that defines the type of connection can be used for three-phase unbalanced systems";

  type PerUnit = Real (final quantity="Per unit", final unit="1", min=0)
    "Used to represent electric quantities with respect to reference value";

  type VoltageLevel = enumeration(
    Low   "Low voltage",
    Medium   "Medium voltage",
    High   "High voltage") "Enumeration that defines the type of voltage level";

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Buildings.Electrical.Types.CableMode

Enumeration that defines how a cable can be parameterized

Information

This type is used to indicate in which mode the cable model works. In automatic mode the cable is automatically sized using basic information like nominal voltage and power, in commercial mode the user can select among a list of commercially available cables.

Modelica definition

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Buildings.Electrical.Types.CharacteristicReactance

Reactance per unit length

Information

This type defines the reactance per unit length. It is typically used to describe physical properties of line cables.

Extends from Real.

Parameters

Type	Name	Value
Custom Parameters
	quantity	"Reactance per meter"
	unit	"Ohm/m"

Modelica definition

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Buildings.Electrical.Types.CharacteristicResistance

Resistance per unit length

Information

This type defines the resistance per unit length and it typically used to describe physical properties of the line cables.

Extends from Real.

Parameters

Type	Name	Value
Custom Parameters
	quantity	"Resistance per meter"
	unit	"Ohm/m"

Modelica definition

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Buildings.Electrical.Types.InitMode

Enumeration that defines the type of initialization assumption can be used for a load model

Information

This type is used to indicate how a model should be initialized.

Modelica definition

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Buildings.Electrical.Types.Load

Enumeration that defines the modeling assumption of the load.

Information

This type indicates in which mode the load model operates.

Modelica definition

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Buildings.Electrical.Types.LoadConnection

Enumeration that defines the type of connection can be used for three-phase unbalanced systems

Information

This type is used to describe different types of connections that can be used in unbalanced three phase systems.

Modelica definition

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Buildings.Electrical.Types.PerUnit

Used to represent electric quantities with respect to reference value

Information

This type is used to declare whether an electric quantity such as voltage is expressed in SI units or in per units (i.e., the value divided by its nominal value).

Extends from Real.

Parameters

Type	Name	Value
Custom Parameters
	quantity	"Per unit"
	unit	"1"
	min	0

Modelica definition

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Buildings.Electrical.Types.VoltageLevel

Enumeration that defines the type of voltage level

Information

This type is used to define which type of voltage level is used. This is typically used for computing or selecting the line cables.

Modelica definition

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