A new symmetric modular eleven‐level inverter using single and double source unit for low voltage applications with reduced number of switches

This study proposes a modular multilevel inverter for low-voltage applications, including ac-coupled renewables and energy storage systems. These inverters require many switches gate drivers in their structures, which complicates the control system, reduces efficiency, increases costs. introduces new that can produce five levels of positive voltage using only six power DC sources. The basic unit is composed single- double-source (SDS) unit. SDS number electronic components, such as insulated bipolar transistors, freewheeling diodes, driver circuits, dc sources, blocking by switches. proposed topology boost output decrease switching devices stress some combinations submodules. performance 11-level single-phase compared with conventional structures recent symmetric topologies considering switches, cost, efficiency. waveform quality both current harmonic characteristics were determined accordance IEEE 519–2014. Finally, an prototype was constructed to validate theoretical analysis, feasibility, effectiveness inverter.