Abstract
This paper presents a Switched Capacitor multilevel inverter with voltage boosting ability to obtain fourfold boost with fewer components which can be used to boost and convert, the low output DC of the solar cells or renewable energy sources, into high AC output voltage thus the inverter can be used in applications like integration of solar PV/battery hybrid system for micro grid, hybrid electric vehicle, aerospace industries etc. The proposed topology with single de source uses only eight switches to achieve a nine-level output, self-voltage balance of capacitors and fourfold boost, thus, the effective cost is reduced compared to other switched-capacitor multilevel inverters (SCMLIs). Like other SCMLIs, the proposed multilevel switched-capacitor inverters do not require a backend H-bridge, in which four switches must withstand the peak output voltage. Therefore, total standing voltage (TSV) can be lowered. The switched capacitor configuration is used to auto-balance the capacitor by supplying the switches with appropriate pulses using phase disposition pulse width modulation method.
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