recordSynchron_pm

Synchronous machine pm parameters

Extends from Synchron3rd_pm (Synchronous machine pm 3rd order parameters).

Information

Equivalent circuit on diagram layer!

Specifying standard transient data both for _d and _q axis:

  - for first order write

  xtr = {0.4}   for  xtr'  = 0.4,  no xtr''
  tc  = {1.3}   for   tc'  = 1.3,   no tc''
  and
  xtr = {0.26}  for  xtr'' = 0.26,  no xtr'
  tc  = {0.06}  for   tc'' = 0.06,   no tc'

  - for second order write

  xtr = {0.4, 0.24}  for  xtr' = 0.4, xtr'' = 0.24
  tc  = {1.3, 0.04}  for   tc' = 1.3,  tc'' = 0.04

and analogous for higher order.

Sign of field current i_f:
Mathematical conventions (Z-matrix) are used for formulas in package 'Precalculation'.
Experimental conventions (if0_deg) choose the inverse sign for the field-current.
Therefore we have to use the following definition for the phase-angle of i_f:

  alpha_if0 = (if0_deg + 180)*pi/180

If the induced field-current values are not available and for pm-excitation the d-axis is treated according to the q-axis scheme (without xm_d).

Specifying equivalent circuit data:

    xsig_f, r_f, xsig_Q, r_Q correspond to a stator-based equivalent circuit.
    The number of components of xsig_r, r_r depends on the order of the model.
    For pu-input refer to stator base value R_base.

The relation between 'flux induced by permanent magnet' Psi_pm [Wb] and 'magnetisation' psi_pm [pu] is given by the following relation;

  Psi_pm = psi_pm*V_nom/omega_nom
  psi_pm = Psi_pm*omega_nom/V_nom

Parameters

TypeNameDefaultDescription
Booleanneu_iso (from Synchron3rd_pm)falseisolated neutral if Y
Integerpp (from Synchron3rd_pm)2pole-pair number
Integerexcite (from Synchron3rd_pm)2excitation (2:pm)
SIpu.MagneticFluxpsi_pm (from Synchron3rd_pm)1.2magnetisation (V/V_nom at open term at omega_nom)
SIpu.Reactancex_d (from Synchron3rd_pm)0.4syn reactance d-axis
SIpu.Reactancex_q (from Synchron3rd_pm)0.4syn reactance q-axis
SIpu.Reactancex_o (from Synchron3rd_pm)0.1reactance 0-axis
SIpu.Resistancer_s (from Synchron3rd_pm)0.05resistance armature
SIpu.Resistancer_n (from Synchron3rd_pm)1resistance neutral to grd (if Y)
BooleantransDattrueuse transient data
Booleanuse_xtrtrueuse x_transient and t_closed?
SIpu.Reactancextr_d{0.142857}trans reactance d-axis {xtr_d', xtr_d'', ..}
SIpu.Reactancextr_q{0.142857}trans reactance q-axis {xtr_q', xtr_q'', ..}
SI.Timetc_d{0.00994718}time constant closed-loop d-axis {tc_d', tc_d'', ..}
SI.Timetc_q{0.00994718}time constant closed-loop q-axis {tc_q', tc_q'', ..}
SI.Timeto_d{0.0278521}time constant open-loop d-axis {to_d', to_d'', ..}
SI.Timeto_q{0.0278521}time constant open-loop q-axis {to_q', to_q'', ..}
Booleanuse_if0falseinduced field current and phase available?
SIpu.Currentif00induced field current at v_s=Vnom/0deg
SIpu.Angle_degif0_deg0angle(if0) at v_s=Vnom/0deg (sign: i_f behind v_s)
Realtol1e-6tolerance precalculation
SIpu.Reactancexsig_s0.1leakage reactance armature
SIpu.Reactancexsig_rd{0.05}leakage reactance rotor d-axis {f, D, ..}
SIpu.Reactancexsig_rq{0.05}leakage reactance rotor q-axis {Q1, ..}
SIpu.Reactancexm_dfill(0, 0)coupling-reactance d-axis {xm1, ..}
SIpu.Resistancer_rd{0.04}resistance rotor d-axis {f, D, ..}
SIpu.Resistancer_rq{0.04}resistance rotor q-axis {Q1, ..}
SI.CurrentIf_nom0nom field current (V=V_nom at open term)
Nominal
Base.Types.Unitsunits (from Nominal)Types.puSI | pu
SI.VoltageV_nom (from Nominal)1nom Voltage (= base if pu)
SI.ApparentPowerS_nom (from Nominal)1nom Power (= base if pu)
SI.Frequencyf_nom (from NominalDataAC)50nom frequency