A Switched Capacitor Seven-Level Inverter With Self Voltage Balancing Ability

This article outlines a unique seven-level inverter that is powered from simply one dc source and is ideal for solar and wind applications. The intended result is created through floating capacitors (FC) and integrating them utilizing a switched-capacitor scheme. This configuration has been recognized due to its sensorless capacitor voltage balancing potential, minimizing control issues in creating a tripolar staircase pattern. Additional features sustainable performance that avoids unintentional capacitor excessive voltage. A phase disposition pulse-width modulation (PD-PWM) method has been utilized to control the functioning of the topology. Furthermore, proposed topology employs fewer semiconductor devices. A comprehensive contrast of distinct recently 7L inverter configurations is provided to illustrate the positive aspects of the recommended structure about minimizing the switch count. The successful implementation of the proposed structure is investigated employing MATLAB/Simulink under numerous parametric limitations.