Energy industries & utilities Technology: general issues cascaded H-bridge (CHB) closed-loop control current harmonics effective voltage regulation frequency-domain model full electric aircraft (FEA) generalized delayed signal cancellation harmonic analysis harmonic distortion metaheuristic search algorithms multi-level inverter multiphase drives permanent magnet synchronous motor (PMSM) power converters power quality pulse width modulation pulse-width modulation pulse-width modulation (PWM) repetitive controller total harmonic distortion (THD) voltage-source inverter (VSI)