Creating a three-phase UPS in MATLAB

I am having a problem trying to create a Three-phase UPS in MATLAB, I do have an existing file whereby the system works as a single phase. I have then multiplied the system by three and connected it to a load at the output however the output seems to flatline and then rise again, could I get some help on this.

Kind Regards,

Answer 1

[Sabin]

The load is not connected correctly, and probably the system is not well designed for three-phase operation. We cannot just connect put three single phase system in parallel and connect them to a resistor. We can use some wye connected resistive load instead. Also, the requirements must be clear, is this supposed to be a single-phase to three phase UPS or a three-phase to three-phase? If it is a three-phase to three phase we should have a correct three-phase supply where the phases are 120 degrees shifted. I would recommend checking the Simscape Electrical documentation as there are many great examples to start your design.