Enhanced 13-Level Multilevel Inverter Using Minimal Switched Capacitors
Keywords:
Pulse width modulation control, Capacitor Voltage Self Balancing, Reduced Switched Capacitor Technology, Harmonic DistortionAbstract
This paper proposes an increasing demand for efficient power conversion systems, driven by the rapid adoption of renewable energy sources, has led to significant advancements in multilevel inverter technologies. Among these, the Reduced Switched Capacitor (RSC) inverter topology has gained attention due to its ability to generate high-quality output waveforms while minimizing harmonic distortion and improving overall efficiency. This study presents an analysis of a simplified 13-level inverter utilizing RSC technology.
Additionally, a Pulse Width Modulation (PWM) control strategy is employed to regulate switching signals, ensuring optimized harmonic suppression and enhanced waveform quality. The proposed inverter topology reduces the number of power switches and capacitors, leading to improved system efficiency, lower cost, and simplified implementation. The system is modelled and simulated using MATLAB/Simulink, and the obtained results demonstrate an efficiency of 98.50%, along with significantly reduced Total Harmonic Distortion (THD). This highly efficient and compact inverter design is well-suited for renewable energy systems, industrial
motor drives, and various power electronic applications where high performance and reduced circuit complexity
are essential
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