modelImpedance
Impedance (inductive) with series resistor, 3-phase abc
Extends from Partials.ImpedBase (Impedance base, 3-phase abc).
Information
This model corresponds to ACabc.Inductor, but uses a different determination of the coefficients.
Instead of x_s, x_m, and r the parameters z_abs, cos(phi), and x_o are used.
Relations:
z = Z / R_base z_abs = |z| r = real(z) = |z|*cos(phi) resistance x = imag(z) = |z|*sin(phi) inductance dq-components
With
cpl = x_m/x_s, -1/2 < cpl < 1 coupling coefficient
we have
x0 = x*(1 + 2*cpl)/(1 - cpl) inductance o-component
and
x_s = (2*x + x0)/3 = x/(1 - cpl) self inductance x_m = -(x - x0)/3 = x*cpl/(1 - cpl) mutual inductance
Coupling:
cpl = x_m/x_s coupling coefficient, -1/2 < cpl < 1 cpl > 0 positive coupling (example lines) cpl < 0 negative coupling (example machine windings) cpl = (x0/x - 1)/(x0/x + 2)
More info see package ACabc.Impedances.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Boolean | stIni_en (from ImpedBase) | true | enable steady-state initial equation |
| SIpu.Impedance | z_abs | 1 | abs value of impedance |
| Real | cos_phi | 0.1 | cos-phi of impedance |
| Real | cpl | 0 | phase coupling x_m/x_s, -1/2 < cpl < 1 |
| Nominal | |||
| Base.Types.Units | units (from Nominal) | Types.pu | SI | pu |
| SI.Voltage | V_nom (from Nominal) | 1 | nom Voltage (= base if pu) |
| SI.ApparentPower | S_nom (from Nominal) | 1 | nom Power (= base if pu) |
| SI.Frequency | f_nom (from NominalAC) | system.f_nom | nom frequency |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Base.Interfaces.ACabc_p | term_p (from Port_p_n) | positive terminal | |
| Base.Interfaces.ACabc_n | term_n (from Port_p_n) | negative terminal |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| SI.Voltage | v (from ImpedBase) | ||
| SI.Current | i (from ImpedBase) |
Contents
| Name | Description |
|---|---|
 acosprotected |