How can I simulate a network with unsymmetrical voltages and different phase impedances?

Power Equipment Models

Attached you find an example with 3 unsymmetrical voltage sources.

It is required to use 3 symmetrical voltage sources and to connect them to the load busbar using 3 single-conductor cables (phase A of the first voltage source, phase B of the second and phase C of the third)

This procedure also works for dynamic simulations, although the control algorithm needs to be defined and implemented separately.