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60[Formula: see text] Flat PWM technique for single-source switched-capacitor multilevel inverter with quadruple
Oorappan G M1, Lakshmanan S A2, Jagabar Sathik M3
1Mechatronics Engineering, Bannari Amman Institute of Technology, Erode, 638401, Tamil Nadu, India. oorappan@bitsathy.ac.in.
Abstract:
This paper introduces a new 60[Formula: see text] Flat PWM Technique for Single-Source Switched-Capacitor(SC) Multilevel Inverter with Quadruple Boost (60FP-MLI-QB) and Enhanced Output. The proposed design generates nine output levels with lower switching losses using the 60[Formula: see text] Flat PWM (60FP) Technique. Furthermore, this technique increases the voltage gain enhancement while flattening the sine wave at its peak. The driven inverter topology includes 11 switches, two capacitors, and a diode, with each levels circuit connected through six or five switches. The performance of the proposed 60FP-MLI-QB is tested through simulation and hardware experiments under various dynamic conditions, showing its flexibility and superiority compared to similar configurations. Moreover, the paper presents a harmonic minimization technique through various FP methods by modifying the sinusoidal modulation reference.
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