Tek Stopped MV Converter Pole Voltage and Current 2,157 Acquisitions 18 December 2014 22:37:30 HV-Primary Vao [2 k/dev.] ia [2 A/dev.] Buttons Ch 3 Position -2.0 div Ch 3 Scale 500.0 V 4 Pk-Pk (C1) 7.04 kV Mean (C1) 264.4 V VDac [500 V/dev.] LV Delta L-L Voltage and Current iDa [10 A/dev.] Max (C2) 10.4 A rms (C2) 5.006 A 3 Max (C3) 480.0 V LV-Secondary f Mean (C4) 2.48 A fig 14 DABC operation results under TIPS system integration mode at 7-kV-420-V dc voltages at 8.4-kW and 10-kHz switching frequency. MV DAB Setup MV FEC Setup *Step-Up Testing Transformer A B A Pole FEC Inductors B DAB LV C C C B A DAB MV/HF Transformers *4,160-V Bus Generated Using a Variac Feeding the Step-Up Transformer ** DAB LV dc Feeds an Inverter Setup Not Shown Here fig 15 The TIPS system experimental setup at the NCSU FREEDM Systems Center laboratory. 40 IEEE PowEr ElEctronIcs MagazInE z September 2015