Obtaining DC from a tri-phase generator

I have a tri-phase generator which outputs AC voltage waveforms ($R$, $S$ and $T$) with 120o phase shift between them. I want to rectify these voltages and obtain a single DC voltage.

I designed the circuit below, but I'm not sure whether it will work or not.

a) Would this circuit work? (Importatant, please don't skip.)
b) What are the alternative/better circuits for this purpose?