Impedance
Single phase linear impedance
Library
Modelica/Electrical/QuasiStationary/SinglePhase/Basic
Description
The impedance model represents a series connection of a resistor and either an inductor or capacitor.
The linear impedance connects the voltage v with the
current i by v = Z*i. The resistive
component is modeled temperature dependent, so the real part R_actual = real(Z) is determined from
the actual operating temperature and the reference input resistance real(Z_ref).
A conditional heat port is considered.
The reactive component X_actual = imag(Z)
is equal to imag(Z_ref) if frequencyDependent = false.
Frequency dependency is considered by frequencyDependent = true, distinguishing two cases:
- (a)
imag(Z_ref) > 0: inductive case - The actual reactance
X_actualis proportional tof/f_ref - (b)
imag(Z_ref) < 0: capacitive case - The actual reactance
X_actualis proportional tof_ref/f
See also
Resistor, Conductor, Capacitor, Admittance, Variable resistor, Variable conductor, Variable capacitor, Variable inductor, Variable impedance, Variable admittance
Parameters
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
mo_Z_ref | Z_ref | Complex impedance R_ref + j*X_ref | ||
mo_T_ref | T_ref | Reference temperature | Scalar | |
mo_alpha_ref | alpha_ref | Temperature coefficient of resistance (R_actual = R_ref*(1 + alpha_ref*(heatPort.T - T_ref)) | Scalar | |
mo_useHeatPort | useHeatPort | =true, if heatPort is enabled | Number | 0 |
mo_T | T | Fixed device temperature if useHeatPort = false | Scalar | |
mo_frequencyDependent | frequencyDependent | Consider frequency dependency, if true | Scalar | true |
mo_f_ref | f_ref | Reference frequency, if frequency dependency is considered | Scalar | |
mo_R_ref | R_ref | Resistive component of impedance, resistance | Scalar | |
mo_X_ref | X_ref | Reactive component of impedance, reactance | Scalar |
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
mo_abs_v | abs_v | abs_v | Structure | |
mo_abs_v/fixed | fixed | Cell of scalars | true | |
mo_abs_v/start | start | Cell of scalars | ||
mo_arg_v | arg_v | arg_v | Structure | |
mo_arg_v/fixed | fixed | Cell of scalars | true | |
mo_arg_v/start | start | Cell of scalars | ||
mo_abs_i | abs_i | abs_i | Structure | |
mo_abs_i/fixed | fixed | Cell of scalars | true | |
mo_abs_i/start | start | Cell of scalars | ||
mo_arg_i | arg_i | arg_i | Structure | |
mo_arg_i/fixed | fixed | Cell of scalars | true | |
mo_arg_i/start | start | Cell of scalars | ||
mo_P | P | P | Structure | |
mo_P/fixed | fixed | Cell of scalars | true | |
mo_P/start | start | Cell of scalars | ||
mo_Q | Q | Q | Structure | |
mo_Q/fixed | fixed | Cell of scalars | true | |
mo_Q/start | start | Cell of scalars | ||
mo_S | S | S | Structure | |
mo_S/fixed | fixed | Cell of scalars | true | |
mo_S/start | start | Cell of scalars | ||
mo_pf | pf | pf | Structure | |
mo_pf/fixed | fixed | Cell of scalars | true | |
mo_pf/start | start | Cell of scalars | ||
mo_omega | omega | omega | Structure | |
mo_omega/fixed | fixed | Cell of scalars | true | |
mo_omega/start | start | Cell of scalars | ||
mo_LossPower | LossPower | LossPower | Structure | |
mo_LossPower/fixed | fixed | Cell of scalars | true | |
mo_LossPower/start | start | Cell of scalars | ||
mo_T_heatPort | T_heatPort | T_heatPort | Structure | |
mo_T_heatPort/fixed | fixed | Cell of scalars | true | |
mo_T_heatPort/start | start | Cell of scalars | ||
mo_R_actual | R_actual | R_actual | Structure | |
mo_R_actual/fixed | fixed | Cell of scalars | true | |
mo_R_actual/start | start | Cell of scalars | ||
mo_X_actual | X_actual | X_actual | Structure | |
mo_X_actual/fixed | fixed | Cell of scalars | true | |
mo_X_actual/start | start | Cell of scalars |
Ports
| Name | Type | Description | IO Type | Number |
|---|---|---|---|---|
pin_p | implicit | Positive quasi-static single-phase pin | input | 1 |
pin_n | implicit | Negative quasi-static single-phase pin | output | 1 |
Port 3 | implicit | Conditional heat port | input | mo_useHeatPort |