How to connect two Three phase bridge rectifiers in parallel and get 12 pulse per cycle

I build a simple circuit of two three phase source one of them is Va,Vb,Vc with 220v as a value and (0,-120,120) phase shift, and the other three voltage source is 220v as a value and (30,-90,150), so the phase shift between the two sources 30 degree , the two bridges are connected for each one of them ,and the output voltage for each bridge is six pulse , but when I connect the two bridges in parallel the output voltage is 6 pulse too, what is the problem or what is the explaination for this issue

Answer 1

[Sabin]

The measurement comparing the results is not correct. Both voltage sensors are measuring the same thing because the wo converters are connected in parallel (plus to plus and minus to minus).