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Delta-connected variable inductors with variable series resistors and variable series emf
This component models three variable inductors with variable resistors and variable voltage sources connected in series. The three phases are connected in a delta-configuration. In the component icon terminal a is marked with a dot.
The component is controlled with four vector signals - each vector having three elements in the order ab, bc, ca - containing the emf, the momentary resistance values, the momentary inductance values, and their derivatives with respect to time. It is the responsibility of the user to provide the correct derivatives.
The currents measured in the three phases (,
, and
) are provided as
an output vector signal.
The fundamental component equations are:
As long as current can flow freely in and out of all terminals the three phases are operating independently.
If one terminal - e.g. a - is open-circuited, we have
If two or all three terminals are open-circuited, we have