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.
The neutral point is isolated.
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.
v_cond = v_term[{1,2,3}] - v_term[{2,3,1}] for sh = 0
i_term = i_cond[{1,2,3}] - i_cond[{3,1,2}] for sh = 0
v_cond = v_term[{3,1,2}] - v_term[{1,2,3}] for sh = 1
i_term = i_cond[{2,3,1}] - i_cond[{1,2,3}] for sh = 1
v_cond = v_term[{2,3,1}] - v_term[{3,1,2}] for sh = -1
i_term = i_cond[{3,1,2}] - i_cond[{2,3,1}] for sh = -1
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 | 3 | 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 |
Contents
| Name | Description |
|---|---|
 permprotected |