A Performance Comparison of Stationary Frame Control of Three-Leg and Four-Leg Voltage Source Inverters in Power System Applications. - Paul Frutos; Edward Christopher; Alberto Sanchez; Omar Aguirre (IECON, 2018)

Quad-Active-Bridge as the basic cell of a MMC Based SST for DER and DESS Integration. - Paul Frutos; Fernando Briz; Alberto Sánchez 007; Juan Manuel Guerrero (ISIE, 2019)