ACTPSS Balance of capacitor voltage Cascaded H-bridge multilevel inverter (CHBMI) Continuous Wavelet Transform DC side fault blocking DC-link capacitor design DC-link capacitor voltage balancing DC-link voltage balancing DC–DC conversion Differential Comparison Low-Voltage Detection Method (DCLVDM) IGBT short-circuit LC filter MMC-MTDC NPC/H Bridge PV-simulator Phase Disposition PWM SVPWM Sub-module (SM) fault Suppression of CMV T-type converter T-type inverter active filter alternating current (AC) motor drive automatic current balance battery energy storage system (BESS) buck-chopper capacitor voltage balancing commutation computational burden computational cost