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Table 2 Comparison about 2 L + Tx, 3 L + Tx, MMC and MMC + ITx

From: Power converters for battery energy storage systems connected to medium voltage systems: a comprehensive review

Comparison 2 L + Tx 3 L + Tx MMC MMC + ITx
Efficiency at rated power (%) 97.70 96.91 99.23 98.42
THD at rated power (%) 2.52 3.48 0.87 0.87
THD at rated power (%) 4000 4000 40,000 40,000
Inductor Energy Storage (J) 360 1050 45.5 45.5
Number of IGBTs 6 12 432 432
Number of Diodes 6 18 432 432
Number of Control Loops 3 3 12 12
Number of Current Sensors 3 3 6 6
Number of Voltage Sensors 4 4 4 4
Fault Tolerance No No Yes Yes