modelY
Y transform
Extends from TopologyBase (Topology transform base).
Information
Structurally incomplete model. Use only as component within appropriate complete model.
Defines Y-topology transform of voltage and current variables.
Definitions
v_term, i_term: terminal voltage and current v_cond, i_cond: voltage and current across conductor, (terminal to neutral point)
Relations, zero-component and neutral point (grounding)
v_cond = v_term - {0, 0, sqrt(3)*v_n}
i_term = i_cond
i_n = sqrt(3)*i_term[3]
Note: parameter sh (phase shift) not used.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | n_n (from TopologyBase) | 1 | 1 for Y, 0 for Delta |
| Integer | sh (from TopologyBase) | 0 | (-1,0,+1)*120deg phase shift |
| Integer | scale | 1 | for scaling of impedance values |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Voltage | v_term (from TopologyBase) | terminal voltage | |
| SI.Current | i_term (from TopologyBase) | terminal current | |
| SI.Voltage | v_cond (from TopologyBase) | conductor voltage | |
| SI.Current | i_cond (from TopologyBase) | conductor current | |
| SI.Voltage | v_n (from TopologyBase) | voltage neutral | |
| SI.Current | i_n (from TopologyBase) | current neutral to ground |