Why i have different waveforms between two systems?

hello, i have a rectifier with certain conditions and i got this current waveform as DC current

Then i build a system transmission simulation using the same conditions that rectifier had, but applied to rectifier and inverter (same firing angle), and i have this waveform for the same current

I attach both simulations.

Transmission-system-LCC.plecs (54.8 KB)

12-pulse-rectifier-bl.plecs (100 KB)