This information is part of the Modelica Standard Library maintained by the Modelica Association.

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_actual is proportional to f/f_ref

(b) imag(Y_ref) < 0: inductive case

The actual susceptance B_actual is proportional to f_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

useHeatPort	Value: false Type: Boolean Description: = true, if heatPort is enabled
T	Value: T_ref Type: Temperature (K) Description: Fixed device temperature if useHeatPort = false
T_ref	Value: 293.15 Type: Temperature (K) Description: Reference temperature
alpha_ref	Value: 0 Type: LinearTemperatureCoefficient (¹/K) Description: Temperature coefficient of resistance (R_actual = R_ref*(1 + alpha_ref*(heatPort.T - T_ref))
frequencyDependent	Value: false Type: Boolean Description: Consider frequency dependency, if true
f_ref	Value: 1 Type: Frequency (Hz) Description: Reference frequency, if frequency dependency is considered