VariableAdmittance
Single phase variable admittance
Library
Modelica/Electrical/QuasiStationary/SinglePhase/Basic
Description
The admittance model represents a parallel connection of a conductor and either a capacitor or inductor.
The linear admittance connects the complex voltage v with the
complex current i by v*Y = i.
The admittance Y_ref = G_ref + j*B_ref is given as complex input signal, representing the
resistive and reactive component of the input admittance. The resistive
component is modeled temperature dependent, so the real part G_actual = real(Y) is determined from
the actual operating temperature and the reference input conductance real(Y_ref).
The reactive component B_actual = imag(Y)
is equal to imag(Y_ref) if frequencyDependent = false.
Frequency dependency is considered by frequencyDependent = true, distinguishing two cases:
- (a)
imag(Y_ref) > 0: capacitive case - The actual susceptance
B_actualis proportional tof/f_ref - (b)
imag(Y_ref) < 0: inductive case - The actual susceptance
B_actualis proportional tof_ref/f
Note
A zero crossing of the real or imaginary part of the admittance signal Y_ref could cause
singularities due to the actual structure of the connected network.
See also
Resistor, Conductor, Capacitor, Inductor, Impedance, Admittance, Variable resistor, Variable conductor, Variable capacitor, Variable inductor, Variable impedance
Parameters
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
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 |
| 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_G_actual | G_actual | G_actual | Structure | |
mo_G_actual/fixed | fixed | Cell of scalars | true | |
mo_G_actual/start | start | Cell of scalars | ||
mo_B_actual | B_actual | B_actual | Structure | |
mo_B_actual/fixed | fixed | Cell of scalars | true | |
mo_B_actual/start | start | Cell of scalars | ||
mo_G_ref | G_ref | G_ref | Structure | |
mo_G_ref/fixed | fixed | Cell of scalars | true | |
mo_G_ref/start | start | Cell of scalars | ||
mo_B_ref | B_ref | B_ref | Structure | |
mo_B_ref/fixed | fixed | Cell of scalars | true | |
mo_B_ref/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 |
Y_ref | implicit | Variable complex admittance | input | 2 |
Port 4 | implicit | Conditional heat port | input | mo_useHeatPort |