modelWyeDynLoad_3Ph
Extends from ThreePhaseComponent (Partial model for inheritance of single-phase base power based on three-phase system base power.).
Information
This is a three-phase wye load model that allows the user to vary the power consumed during the simulation.
The user needs to input the active (P_a, P_b and P_c) and reactive (Q_a, Q_b and Q_c) powers consumed by each phase. Since the values come from independent parameters, the model allows the representation of unbalanced loads.
In addition, the model allows the load to be represented as constant power, or as a ZIP model. In the first approach, the load consumes the same value of active and reactive powers by each phase throughout the simulation. The latter approach allows the load to be represented as a sum of three terms: constant impedance, constant current and constant power. This means that, depending on voltage levels supplied, the load will consume different values of power.
In addition to that, the real input DynFact multiplies the power being consumed by the load. This allows the load to vary over time during the simulation. It is also important to note that DynFact multiplies all variables P_a, P_b, P_c, Q_a, Q_b and Q_c. That means that this model does not allow load variation to be performed only in selected variables.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Power flow data | |||
| Types.ApparentPower | S_b (from ThreePhaseComponent) | SysData.S_b | System base |
| Types.ApparentPower | S_p (from ThreePhaseComponent) | SysData.S_b/3 | Phase base |
| Power flow | |||
| Integer | ModelType | 0 | 0- Constant Power Model, 1- ZIP Model; |
| Types.ActivePower | P_a | 1e6 | Base Active power for phase A |
| Types.ReactivePower | Q_a | 0 | Base Reactive power for phase A |
| Types.ActivePower | P_b | 1e6 | Base Active power for phase B |
| Types.ReactivePower | Q_b | 0 | Base Reactive power for phase B |
| Types.ActivePower | P_c | 1e6 | Base Active power for phase C |
| Types.ReactivePower | Q_c | 0 | Base Reactive power for phase C |
| Load Parameters for ZIP Model | |||
| Real | A_pa | 0 | Percentage of Constant Power Load for Phase A (%) |
| Real | B_pa | 0 | Percentage of Constant Current Load for Phase A (%) |
| Real | C_pa | 0 | Percentage of Constant Impedance Load for Phase A (%) |
| Real | A_pb | 0 | Percentage of Constant Power Load for Phase B (%) |
| Real | B_pb | 0 | Percentage of Constant Current Load for Phase B (%) |
| Real | C_pb | 0 | Percentage of Constant Impedance Load] for Phase B (%) |
| Real | A_pc | 0 | Percentage of Constant Power Load for Phase C (%) |
| Real | B_pc | 0 | Percentage of Constant Current Load for Phase C (%) |
| Real | C_pc | 0 | Percentage of Constant Impedance Load for Phase C (%) |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Interfaces.RealInput | DynFact | Load Curve [pu] | |
| OpenIPSL.Interfaces.PwPin | A | ||
| OpenIPSL.Interfaces.PwPin | B | ||
| OpenIPSL.Interfaces.PwPin | C |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| OpenIPSL.Electrical.SystemBase | SysData (from ThreePhaseComponent) | Must add this line in all models |
Contents
| Name | Description |
|---|---|
| Coefficientsprotected | |
| PowerDefinitionprotected |