modelCapacitive_N
Extends from BaseClasses.LoadCtrl_N (Partial model of a three-phase unbalanced load with voltage controller and neutral cable).
Information
This model represents a three-phase unbalanced capacitive load. The model extends from Buildings.Electrical.AC.ThreePhasesUnbalanced.Loads.BaseClasses.LoadCtrl_N and uses the load model from the package Buildings.Electrical.AC.OnePhase.Loads. The model computes the voltages, currents and powers on each phase.
This model has a connector with four cables and it represents the neutral cable. The current in the neutral cable is computed as the algebraic sum of the currents of the loads.
For more information, see Buildings.Electrical.AC.ThreePhasesUnbalanced.Loads.BaseClasses.LoadCtrl_N and Buildings.Electrical.AC.OnePhase.Loads.Capacitive.
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 BaseLoadCtrl) | Buildings.Electrical.Types.LoadConnection.wye_to_wyeg | Type of load connection (Yg or D) |
| Modeling assumption | |||
| Boolean | linearized (from BaseLoadCtrl) | false | If =true introduce a linearization in the load |
| Buildings.Electrical.Types.Load | mode (from BaseLoadCtrl) | Buildings.Electrical.Types.Load.FixedZ_steady_state | Parameters that specifies the mode of the load (e.g., steady state, dynamic, prescribed power consumption, etc.) |
| Boolean | use_pf_in | false | If true, the power factor is defined by an input |
| Nominal conditions | |||
| Modelica.Units.SI.Power | P_nominal (from BaseLoadCtrl) | 0 | Nominal power (negative if consumed, positive if generated) |
| Modelica.Units.SI.Voltage | V_nominal (from BaseLoadCtrl) | Nominal voltage (V_nominal >= 0) | |
| Real | pf | 0.8 | Power factor |
| Voltage CTRL | |||
| Boolean | voltageCtrl (from BaseLoadCtrl) | false | This flag enables the voltage control |
| Real | vThresh (from BaseLoadCtrl) | 0.1 | Threshold that activates voltage ctrl (ratio of nominal voltage) |
| Modelica.Units.SI.Time | tDelay (from BaseLoadCtrl) | 300 | Time to wait before plugging the load again after disconnection |
| Initialization | |||
| Types.InitMode | initMode (from BaseLoadCtrl) | Buildings.Electrical.Types.InitMode.zero_current | Initialization mode for homotopy operator |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Interfaces.RealInput | y1 (from BaseLoadCtrl) | Fraction of the nominal power consumed | |
| Modelica.Blocks.Interfaces.RealInput | Pow1 (from BaseLoadCtrl) | Power consumed | |
| Modelica.Blocks.Interfaces.RealInput | y2 (from BaseLoadCtrl) | Fraction of the nominal power consumed | |
| Modelica.Blocks.Interfaces.RealInput | Pow2 (from BaseLoadCtrl) | Power consumed | |
| Modelica.Blocks.Interfaces.RealInput | y3 (from BaseLoadCtrl) | Fraction of the nominal power consumed | |
| Modelica.Blocks.Interfaces.RealInput | Pow3 (from BaseLoadCtrl) | Power consumed | |
| Buildings.Electrical.AC.ThreePhasesUnbalanced.Interfaces.Terminal4_n | terminal (from LoadCtrl_N) | Connector for three-phase unbalanced systems with neutral cable | |
| Modelica.Blocks.Interfaces.RealInput | pf_in_1 | Power factor of load on phase 1 | |
| Modelica.Blocks.Interfaces.RealInput | pf_in_2 | Power factor of load on phase 2 | |
| Modelica.Blocks.Interfaces.RealInput | pf_in_3 | Power factor of load on phase 3 |
Components
Revisions
-
September 24, 2014, by Marco Bonvini:
Revised documentation. -
August 27, 2014, by Marco Bonvini:
Revised documentation.