modelTwoPortResistance
Model of a two port DC resistance
Extends from Buildings.Electrical.Transmission.BaseClasses.PartialTwoPortResistance (Partial model of a resistive element that links two electrical connectors).
Information
This model represents a resistance that connect two DC interfaces. This model can be used to represent a cable in a DC grid.
The model represents the lumped resistance as shown in the figure below.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Boolean | useHeatPort (from ConditionalHeatPort) | false | = true, if heatPort is enabled |
| SI.Temperature | T (from ConditionalHeatPort) | 293.15 | Fixed device temperature if useHeatPort = false |
| Modelica.Units.SI.Resistance | R (from PartialTwoPortResistance) | Resistance at temperature T_ref | |
| Modelica.Units.SI.Temperature | T_ref (from PartialTwoPortResistance) | 298.15 | Reference temperature |
| Modelica.Units.SI.Temperature | M (from PartialTwoPortResistance) | 507.65 | Temperature constant (R_actual = R*(M + T_heatPort)/(M + T_ref)) |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Buildings.Electrical.Interfaces.BaseTerminal | terminal_n (from PartialBaseTwoPort) | Electric terminal side p | |
| Buildings.Electrical.Interfaces.BaseTerminal | terminal_p (from PartialBaseTwoPort) | Electric terminal side n | |
| Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_a | heatPort (from ConditionalHeatPort) | Conditional heat port |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Power | LossPower (from ConditionalHeatPort) | Loss power leaving component via heatPort | |
| SI.Temperature | T_heatPort (from ConditionalHeatPort) | Temperature of heatPort | |
| Modelica.Units.SI.Resistance | R_actual (from PartialTwoPortResistance) | Actual resistance = R*(M + T_heatPort)/(M + T_ref) |
Revisions
-
March 19, 2015, by Michael Wetter:
Removed redeclaration of phase system inTerminal_nandTerminal_pas it is already declared to the be the same phase system, and it is not declared to be replaceable. This avoids a translation error in OpenModelica. -
January 14, 2015, by Marco Bonvini:
Added equation that represents Joule losses -
June 2, 2014, by Marco Bonvini:
Revised documentation. -
October 31, 2013, by Marco Bonvini:
First implementation.