.Spot.ACdqo.Ports.Y_Dport_p

Information

Modification of YDport_p for switcheable Y-Delta transform.
Defines Y- and Delta-topology transform of voltage and current variables.
The neutral point is isolated.

Definitions

  v:     voltage across conductor
  i:     current through conductor
  v_n:   voltage neutral point if Y-topology
  i_n=0: current neutral to ground if Y-topology

Relations Y-topology, (v, i: terminal to neutral point)

  v = term.v - {0, 0, sqrt(3)*v_n}
  term.i = i
  i_n = sqrt(3)*term.i[3]

Relations Delta-topology, (v, i: phase terminal to phase terminal)

  v[1:2] = sqrt(3)*Rot*term.v[1:2]
  v[3] = 0
  term.i[1:2] = sqrt(3)*transpose(Rot)*i[1:2]
  term.i[3] = 0
  with Rot = rotation_30deg