Table 1 Main parameters of the converter topologies for this case study

Battery pack voltage

600 V

Battery pack charge

500 Ah

Number of battery packs in parallel

4

Dc-link voltage

600 V

Switching frequency

2.4 kHz

Converter output voltage

380 V

Filter equivalent Inductance

51 μH

Filter X/R ratio

40

3 L + Tx

Value

Battery pack voltage

600 V

Battery pack charge

500 Ah

Dc-link voltage

600 V

Switching frequency

1.2 kHz

Converter output voltage

380 V

Inductance filter

150 μH

Filter X/R ratio

40

MMC and MMC + ITx

Value

Battery cell nominal capacity

10 Ah

Battery cell nominal voltage

3.6 V

Number of battery cells in series per cell

167

Dc voltage per cell

600 V

Dc-link voltage

21.6 kV

Effective switching frequency

140 Hz

Converter output voltage

13.8 kV

Arm inductance

16.8 mH

Arm inductance X/R ratio

40

Number of cell per arm

36