Efficient hybrid sinusoidal pulse-width modulation control schemes for cascaded five-level H-bridge inverter-fed industrial drives.

The performance of a pulse-width modulation (PWM) technique for soft switched cascaded five-level inverters are emphasised. The hybrid PWM topologies have been on spot light in industrial drives, the cascaded multilevel inverter can be asserted due to high power medium voltage applications. The proposed modulation schemes are hybrid alternative phase opposition disposition, hybrid phase shift carrier, hybrid single carrier sinusoidal PWM (SPWM) schemes. It inherits the switching loss reduction along with reduced harmonic performance of cascaded multilevel inverter fed drive system. The effectiveness of the novel concepts are validated experimentally. Simulation study of the inverter employing the proposed hybrid alternative phase opposition disposition and hybrid single carrier SPWM strategies has been done in MATLAB/Simulink. Among the existing design the efficient strategy is employed in the hardware implementation of hybrid multilevel inverter [ABSTRACT FROM AUTHOR]