Mathematical Modeling and Analysis of Capacitor Voltage Balancing for Power Converters with Fewer Switches

The multilevel inverter (MLI) has been developed as a powerful power conversion scheme for several processes, including renewable energy, transmission systems, and electric drives. It become popular across medium- to high-power operations due its many advantages, minimum harmonic content, low switching losses, reduced electromagnetic interference (EMI). In this paper, the capacitor voltage balancing technique-based pulse width modulation (PWM) proposed. proposed PWM strategy offers such high-quality output waveforms with distortion, improved efficiency, better control over voltage. Xilinx ISE 10.1 software was used synthesizing, VHDL code written method. MATLAB simulate hardware verify system. SPARTAN 3E FPGA generation of PWM. This paper 2 kW single-phase 15-level that created an AC wave from DC input voltage, total distortion (THD) 8.02%, which less than THD achieved other conventional MLI. results indicate MLI topologies currents, fewer switches, higher levels are stabilized during load disturbance circumstances.