A Novel Voltage Boosting ANPC Switched-Capacitor Inverter with Reduced Voltage Stress

In this study, a novel active neutral point clamped switching capacitor (ANPCSC) inverter is presented, which has a voltage-boosting capacity 1.5 times that of the supply voltage. The proposed converter uses nine switches, four capacitors, and a single DC source to generate a 7-step voltage waveform at the output. To ensure the suggested topology (ST) operates properly, a Multi-carrier pulse width modulation technique based on basic logic is constructed. Overall, the voltage stress across all the switches is well within the operating range of the supply. A balancing circuit or sensor is unnecessary because floating capacitors are automatically balanced. The benefits and efficiency of the ST are demonstrated by a brief comparison with modern ANPC topologies. In order to ensure the practicality and efficiency of the ST, it has been simulated (using MATLAB/Simulink) in both steady-state and transient conditions.