Self-balancing Thirteen-Level Switched Capacitor Inverter with Multi-carrier-Based Phase Disposition PWM Control Scheme
摘要
This article describes the design of a thirteen-level inverter that uses switched capacitors and can self-balance. Through the series–parallel connection of switching capacitors, the suggested inverter transforms low DC voltage into high AC voltage. The switching pulses are produced using a multi-carrier phase disposition modulation technique. The system performs better since the capacitor voltages are balanced on their own. The suggested inverters do not feature an H-bridge circuit, in contrast to current switched-capacitor-based inverters, and the supply voltage is not surpassed by the voltage stress of the switches. Each mode of operation’s voltage ratings is calculated analytically, and harmonic distortions are also seen at various modulation indices. The MATLAB/SIMULINK is used to simulate the inverter and observed the advantages of low peak inverse voltage, high-conversion ability, low total standing voltage, and high boosting capability.