modelDelta
Delta transform
Extends from TopologyBase (Topology transform base).
Information
Structurally incomplete model. Use only as component within appropriate complete model.
Defines Delta-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, (phase terminal to phase terminal)
Relations, zero-component
v_n and i_n are not defined, as there is no neutral point.
R = Rot_dq((1-4*sh)*30deg) * sqrt(3) / w v_cond[1:2] = R*v_term[1:2] v_cond[3] = 0 i_term[1:2] = transpose(R)*i_cond[1:2] i_term[3] = 0
with Rot = rotation_30deg
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | scale (from TopologyBase) | for scaling of impedance values | |
| Integer | n_n (from TopologyBase) | 1 | 1 for Y, 0 for Delta |
| Integer | shift | 1 | (0, 1 .. 11)*30deg phase shift |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| PS.Voltage | v_term (from TopologyBase) | terminal voltage | |
| PS.Current | i_term (from TopologyBase) | terminal current | |
| PS.Voltage | v_cond (from TopologyBase) | conductor voltage | |
| PS.Current | i_cond (from TopologyBase) | conductor current | |
| PS.Voltage | v_n (from TopologyBase) | voltage neutral | |
| Real | w (from TopologyBase) | 1 | voltage ratio to nominal |
| PS.Current | i_n (from TopologyBase) | current neutral to ground |