Transformer Modeling With ARTEMiS Stublines

ARTEMiS comes with a library of decoupling elements that enable users, in some conditions, to decouple their model and simulate it on separate cores in RT-LAB. One fundamental block of this decoupling block library is called a stubline.

Open

The stubline is a one-time-step length transmission line for which the user can select the total inductance and resistance. Used with transformers, the stubline can often substitute for the secondary leakage inductance and provide a decoupling delay in the global systems of equations

In real-time applications, this enables the parallelization of the computations on different CPU cores.

Even in a single core or in an offline simulation, the stubline can increase simulation performance because it creates a delay between state-space systems on each side of it.

Open an RT-LAB compatible, multi-core ready version of this example:

Demonstration

In this demo, a switched power system containing a three-phase three-winding transformer is modeled using stublines.

To achieve this, the transformer secondary leakage inductance is replaced by stublines having the same inductance.