SIMPLORER User Manual V6.0 - FER-a

4
5
82 Modeling with Circuit Components
Component Outputs
Description [Unit] Parameter Name Data Type
Voltage [V] V real
Current [A] I real
Flux Linkage [Vs] PSI real
Derivative of Voltage [V/s] dV real
Derivative of Current [A/s] dI real
Derivative of Flux Linkage [V] dPSI real
Component Nodes
Description Node Name Nature
Pin 1 (with red point) N1 electrical
Pin 2 N2 electrical
Nonlinear dual Inductor
di t
vt () Lit ( () ) ()
=
⋅ ----------dt
To describe the nonlinear relation, you must specify a name of an appropriate XY nonlinear
characteristic function. See also “Separate Component Characteristic” on page 297.
X-value: current i (independent quantity)
Y-value: inductance L (dependent quantity)
To define characteristic data you can do one of the following:
• «Use Pin»; the XY component, connected to the pin, provides the characteristic.
Within the Characteristic dialog:
• «Reference»; the name in the text box specifies an XY element placed on the sheet.
• «Lookup Table»
a. «File Reference»; the name in the text box specifies a variable which refers to a subsheet
port specifying a characteristic file.
b. «Lookup Table»; data pairs, defined in the table, are used for characteristic.
• � «File Name»; if you use an file, data pairs are displayed in the lookup table and used
for characteristic. You can modify the data when necessary.
The primary form LNL of representing nonlinear inductors (see above) leads in general to a
better conditioned set of equations and should usually be preferred. With regard to an engineering
model formulation, however, the dual form representation may be more useful. Nevertheless,
the application of the respective element type is up to the user. If numerical
problems appear, an improvement may be obtained with the opposite implementation.
Component Parameters
Description [Unit] Parameter Name Data Type
Initial Current [A] I0 real
Characteristic CH real