modelInitializedTransformerVariableTap
Model of transformer with variable tap and built-in initialization, for the RVS test system
Extends from Dynawo.Electrical.Transformers.TransformerVariableTapXtdPu (Transformer with variable tap to be connected to a tap changer).
Information
This model implements a transformer with variable tap which is automatically initialized by an initialization model.The parameters and the initial values of side 1 are passed to the initialization model, which in turn calculates the necessary initial tap, ratio and load flow.
The calculated values are then assigned to the respective transformer parameters in an initial algorithm section. This way, the transformer has appropriate parameters before the simulation starts. The model cannot use equations due to variability conflict (parameters and variables), therefore the assignment operator must be used. This is permissible, because the initial values do not change during simulation.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | NbSwitchOffSignals (from SwitchOffLogic) | Number of switch-off signals to take into account in inputs | |
| Boolean | SwitchOffSignal10 (from SwitchOffLogic) | false | Initial switch-off signal 1 |
| Boolean | SwitchOffSignal20 (from SwitchOffLogic) | false | Initial switch-off signal 2 |
| Boolean | SwitchOffSignal30 (from SwitchOffLogic) | false | Initial switch-off signal 3 |
| Boolean | Running0 (from SwitchOffLogic) | if NbSwitchOffSignals >= 3 then not (SwitchOffSignal10 or SwitchOffSignal20 or SwitchOffSignal30) elseif NbSwitchOffSignals >= 2 then not (SwitchOffSignal10 or SwitchOffSignal20) else not SwitchOffSignal10 | Indicates if the component is initially running or not |
| Constants.state | State0 (from SwitchOffTransformer) | Constants.state.Closed | Start value of connection state |
| Types.PerUnit | rTfoMinPu (from BaseTransformerVariableTap) | Minimum transformation ratio in pu: U2/U1 in no load conditions | |
| Types.PerUnit | rTfoMaxPu (from BaseTransformerVariableTap) | Maximum transformation ratio in pu: U2/U1 in no load conditions | |
| Integer | NbTap (from BaseTransformerVariableTap) | Number of taps | |
| Types.ComplexVoltagePu | u10Pu (from BaseTransformerVariableTap) | Start value of complex voltage at terminal 1 in pu (base U1Nom) | |
| Types.ComplexCurrentPu | i10Pu (from BaseTransformerVariableTap) | Start value of complex current at terminal 1 in pu (base U1Nom, SnRef) (receptor convention) | |
| Types.ComplexVoltagePu | u20Pu (from BaseTransformerVariableTap) | Start value of complex voltage at terminal 2 in pu (base U2Nom) | |
| Types.ComplexCurrentPu | i20Pu (from BaseTransformerVariableTap) | Start value of complex current at terminal 2 in pu (base U2Nom, SnRef) (receptor convention) | |
| Types.VoltageModulePu | U10Pu (from BaseTransformerVariableTap) | Start value of voltage amplitude at terminal 1 in pu (base U1Nom) | |
| Types.VoltageModulePu | U20Pu (from BaseTransformerVariableTap) | Start value of voltage amplitude at terminal 2 in pu (base U2Nom) | |
| Types.ActivePowerPu | P10Pu (from BaseTransformerVariableTap) | Start value of active power at terminal 1 in pu (base SnRef) (receptor convention) | |
| Types.ReactivePowerPu | Q10Pu (from BaseTransformerVariableTap) | Start value of reactive power at terminal 1 in pu (base SnRef) (receptor convention) | |
| Integer | Tap0 (from BaseTransformerVariableTap) | Start value of transformer tap | |
| Types.PerUnit | rTfo0Pu (from BaseTransformerVariableTap) | Start value of transformer ratio | |
| Types.ApparentPowerModule | SNom (from TransformerVariableTapXtdPu) | Nominal apparent power in MVA | |
| Types.Percent | R (from TransformerVariableTapXtdPu) | Resistance in % (base U2Nom, SNom) | |
| Types.Percent | X (from TransformerVariableTapXtdPu) | Reactance in % (base U2Nom, SNom) | |
| Types.Percent | G (from TransformerVariableTapXtdPu) | Conductance in % (base U2Nom, SNom) | |
| Types.Percent | B (from TransformerVariableTapXtdPu) | Susceptance in % (base U2Nom, SNom) | |
| Types.VoltageModulePu | Uc20Pu | Voltage set-point on side 2 in pu (base U2Nom) | |
| Types.Angle | U1Phase0 | Start value of voltage angle at terminal 1 in rad |
Connectors
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Constants.state | state (from SwitchOffTransformer) | Transformer connection state | |
| Types.PerUnit | rTfoPu (from BaseTransformerVariableTap) | Transformation ratio in pu: U2/U1 in no load conditions | |
| Dynawo.Electrical.Transformers.TransformerVariableTapPQ_INIT | init |