Extends from PartialModels.myPartialTransformer (Partial model for transformers).
A transformer can be modeled as a dedicated Pi-network. A diagram of the model is shown in the figure.
The model describes a transformer with fixed transformer ratio with Ya=0, Yb=G+jB and k = UNomB/UNomA*exp(j*theta).
| Type | Name | Default | Description |
|---|---|---|---|
| Types.myVoltage | UNomA (from myPartialTransformer) | Reference voltage at primary side | |
| Types.myVoltage | UNomB (from myPartialTransformer) | Reference voltage at secondary side | |
| Types.myAngle | theta (from myPartialTransformer) | 0 | Fixed phase shift |
| Types.myResistance | R (from myPartialTransformer) | Series resistance at primary side | |
| Types.myReactance | X (from myPartialTransformer) | 0 | Series reactance at primary side |
| Types.myConductance | G (from myPartialTransformer) | 0 | Shunt conductance at primary side |
| Types.mySusceptance | B (from myPartialTransformer) | 0 | Shunt susceptance at primary side |
| Types.myApparentPowerMVA | SNom (from myPartialTransformer) | 0 | Nominal power of the transformer. 0 means no control |
| TapeChanger | |||
| Types.myVoltage | setPointU | 20400 | Setting value for U |
| Types.myPerUnit | VoltRange | 0.14 | Range of possible voltage variation (0.12, 0.14, 0.15, 0.16, or 0.17) |
| Types.myPerUnit | rangeU | 1.25 | Acceptable range of values for U |
| Integer | Ntap | 17 | Number of tap positions (17, 21, or 23) |
| Types.myVoltage | deltaTapU | VoltRange*20000/((Ntap - 1)/2) | Voltage variation between two consecutive taps: +-VoltRange*20000/((Ntap-1)/2) |
| Integer | startTap | integer((Ntap + 1)/2) | Starting tap position |
| Types.myTime | firstTapChangeTimeout | 60 | Time lag before changing the first tap |
| Types.myTime | nextTapChangeTimeout | 10 | Time lag before changing the following taps |
| Type | Name | Default | Description |
|---|---|---|---|
| Interfaces.myAcausalTerminal | terminalA (from myPartialTransformer) | Terminal A of the node | |
| Interfaces.myAcausalTerminal | terminalB (from myPartialTransformer) | Terminal B of the node |
| Type | Name | Default | Description |
|---|---|---|---|
| Types.myCurrent | IA (from myPartialTransformer) | CM.abs(terminalA.i) | Current flowing port A |
| Types.myVoltage | UA (from myPartialTransformer) | sqrt(3)*CM.abs(terminalA.v) | Voltage at port A |
| Types.myCurrent | IB (from myPartialTransformer) | CM.abs(terminalB.i) | Current flowing port B |
| Types.myVoltage | UB (from myPartialTransformer) | sqrt(3)*CM.abs(terminalB.v) | Voltage at port B |
| Types.myApparentPower | S (from myPartialTransformer) | sqrt(3)*IA*UA | Apparent power flowing port A |
| Regulations.myTapChanger | tapChanger |
