modelImpedance
Extends from Buildings.Electrical.AC.ThreePhasesUnbalanced.Loads.BaseClasses.BaseImpedance (Partial model of a three-phase unbalanced impedance).
Information
This model represents a partial interface for a three-phase AC unbalanced impedance without neutral cable.
The model can be configured in order to represent different type of impedances as well as configurations.
The loads can be connected either in wye (Y) or delta (D) configuration.
The parameter loadConn can be used for such a purpose.
The model has three impedances that can be either connected in Y or
Delta configuration. The parameter loadConn can be used for
such a purpose. The Boolean parameter inductive can be selected
to specify the type of impedance.
The impedances on each phase can be removed using the boolean flags
plugPhase1, plugPhase2, and plugPhase3.
These parameters can be used to generate unbalanced loads.
The values of the impedances are computed starting from the parameters R,
L, and C. Depending on the values of the boolean flag
inductive some of these parameters may be disabled. There are additional
flags use_R_in, use_L_in, and use_C_in that can
be used to specify time varying impedances.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Boolean | plugPhase1 (from PartialPluggableUnbalanced) | true | If true, phase 1 is connected |
| Boolean | plugPhase2 (from PartialPluggableUnbalanced) | true | If true, phase 2 is connected |
| Boolean | plugPhase3 (from PartialPluggableUnbalanced) | true | If true, phase 3 is connected |
| Buildings.Electrical.Types.LoadConnection | loadConn (from BaseImpedance) | Buildings.Electrical.Types.LoadConnection.wye_to_wyeg | Type of load connection (Yg or D) |
| Boolean | inductive (from BaseImpedance) | true | If =true the load is inductive, otherwise it is capacitive |
| Modelica.Units.SI.Resistance | R (from BaseImpedance) | 1 | Resistance |
| Modelica.Units.SI.Inductance | L (from BaseImpedance) | 0 | Inductance |
| Modelica.Units.SI.Capacitance | C (from BaseImpedance) | 0 | Capacitance |
| Variable load › Resistance | |||
| Boolean | use_R_in (from BaseImpedance) | false | if true, R is specified by an input |
| Modelica.Units.SI.Resistance | RMin (from BaseImpedance) | 1e-4 | Minimum value of the resistance |
| Modelica.Units.SI.Resistance | RMax (from BaseImpedance) | 1e2 | Maximum value of the resistance |
| Variable load › Capacitance | |||
| Boolean | use_C_in (from BaseImpedance) | false | if true, C is specified by an input |
| Modelica.Units.SI.Capacitance | CMin (from BaseImpedance) | 1e-4 | Minimum value of the capacitance |
| Modelica.Units.SI.Capacitance | CMax (from BaseImpedance) | 1e2 | Maximum value of the capacitance |
| Variable load › Inductance | |||
| Boolean | use_L_in (from BaseImpedance) | false | if true, L is specified by an input |
| Modelica.Units.SI.Inductance | LMin (from BaseImpedance) | 1e-4 | Minimum value of the inductance |
| Modelica.Units.SI.Inductance | LMax (from BaseImpedance) | 1e2 | Maximum value of the inductance |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Interfaces.RealInput | y_R (from BaseImpedance) | Input that sepecifies variable R | |
| Modelica.Blocks.Interfaces.RealInput | y_C (from BaseImpedance) | Input that sepecifies variable C | |
| Modelica.Blocks.Interfaces.RealInput | y_L (from BaseImpedance) | Input that sepecifies variable L | |
| Buildings.Electrical.AC.ThreePhasesUnbalanced.Interfaces.Terminal_n | terminal | Electrical connector |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Buildings.Electrical.AC.OnePhase.Loads.Impedance | load1 (from BaseImpedance) | Load 1 | |
| Buildings.Electrical.AC.OnePhase.Loads.Impedance | load2 (from BaseImpedance) | Load 2 | |
| Buildings.Electrical.AC.OnePhase.Loads.Impedance | load3 (from BaseImpedance) | Load 3 | |
| Buildings.Electrical.AC.ThreePhasesUnbalanced.Interfaces.WyeToDelta | wyeToDelta (from BaseImpedance) | Wye to delta load connection | |
| Buildings.Electrical.AC.ThreePhasesUnbalanced.Interfaces.WyeToWyeGround | wyeToWyeGround (from BaseImpedance) | Wye to grounded wye connection |
Revisions
-
September 24, 2014, by Marco Bonvini:
Created model from previus version.