modelImpedance

Impedance (inductive) with series resistor, 1-phase

Extends from Partials.ImpedBase (Impedance base, 1-phase).

Information

This model corresponds to AC1ph_DC.Inductor, but uses a different determination of the coefficients.
Instead of x and r the parameters z_abs and cos(phi) are used.

Relations:

  z = Z / R_base
  z_abs = |z|
  r = real(z) = |z|*cos(phi)          resistance
  x = imag(z) = |z|*sin(phi)          inductance pair

With

  cpl = x_m/x_s, -1 <  cpl <  1         coupling coefficient

we have

  x0 = x*(1 + cpl)/(1 - cpl)          inductance 0-component

and

  x_s = (x + x0)/2 = x/(1 - cpl)      self inductance single conductor
  x_m = (x0 - x)/2 = x*cpl/(1 - cpl)  mutual inductance

Coupling:

  cpl >  0:        positive coupling (example lines)
  cpl <  0:        negative coupling

More info see package AC1_DC.Impedances.

Parameters

Type	Name	Default	Description
SIpu.Impedance	z_abs	1	impedance-value
Real	cos_phi	0.1	cos-phi of impedance
Real	cpl	0	phase coupling, -1 < cpl < 1
Parameter Scaling
Boolean	puUnits (from Nominal)	true	= true, if scaled with nom. values (pu), else scaled with 1 (SI)
Nominal
SI.Voltage	V_nom (from Nominal)	1	nominal Voltage (= base for pu)
SI.ApparentPower	S_nom (from Nominal)	1	nominal Power (= base for pu)
SI.Frequency	f_nom (from NominalAC)	system.f_nom	nominal frequency
Initialization
Types.Dynamics	dynType (from ImpedBase)	system.dynType	transient or steady-state model
PS.Voltage	v_start (from ImpedBase)	zeros(2)	start value of voltage drop
PS.Current	i_start (from ImpedBase)	zeros(2)	start value of current

Connectors

Type	Name	Default	Description
Ports.TwoPin_p	term_p (from Port_p_n)		positive terminal
Ports.TwoPin_n	term_n (from Port_p_n)		negative terminal

Components

Type	Name	Default	Description
PS.Voltage	v (from ImpedBase)
PS.Current	i (from ImpedBase)

Name	Description
acosprotected

modelImpedance

Information

Parameters

Connectors

Components

Contents