A High Gain 9L Switched-Capacitor Boost Inverter (9L-SCMI) With Reduced Component Count
2021
The switched-capacitor boost inverters based on the reduced component count has been the latest development for solar PV utilization along with ac systems with the high-frequency operation. The higher voltage gain, sensorless system for self-voltage balancing makes SC-based multilevel inverters (MLIs) a perfect choice for PV applications. In this article, a boost inverter topology with 9 level output has been presented which features the boost of the input voltage. A voltage gain of four is achieved with a single input source, 12 semiconductor devices while three capacitors of source voltage rating exhibit the self-balancing of their voltage. The proposed 9L-SCBI is tested under various conditions through simulation results and experimentally validated with several experimental results.
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