.Spot.ACabc.Machines.Partials.SynchronBase

Information

General model of synchronous machine.
Stator: one winding each in d-axis, q-axis, o-axis.
Rotor: n_d windings in d-axis (field f, (n_d-1) damper D1, ..), n_q windings in q-axis (damper Q1, ..).
See also equivalent circuit on 'Diagram layer' of Parameters.Synchron !

  v, i:          stator-voltage and -current abc reference-system
  v_s, i_s:      stator-voltage and -current dqo rotor-system
  v_rd, i_rd:    rotor-voltage and -current d-axis rotor-system
  v_rq, i_rq:    rotor-voltage and -current q-axis rotor-system

The model is valid for reference systems with arbitrary angular orientation theta[2].

Voltage of field-winding:

Machine- and excitation model should use the same value for the (unscaled) field voltage Vf_nom.
This value is calculated from If_nom, defined through V=V_nom at open terminal.

As the machine model is stator-scaled, the default values

  If_nom = I_nom = S_nom/V_nom
  Vf_nom = V_nom

The magnetic flux Psi_pm of the permanent magnet (if present) is defined by

  Psi_pm = psi_pm*Psi_nom
  Psi_nom = V_nom/omega_nom = V_nom/(pp*w_nom)

  psi_pm = v_op/V_nom

The power angle is calculated if so desired. Note that for an inverter driven machine the power angle signal is oscillating with the source voltage.

  powerAngle:   difference (angle of rotor) - (angle of terminal_voltage)
                (> 0: generator, < 0: motor)