A twice boost nine-level switched-capacitor multilevel (2B-9L-SCMLI) inverter with self-voltage balancing capability
Document Type
Article
Publication Date
8-1-2021
Abstract
The research on the multilevel inverter structures has been focused on reducing the number of voltage sources and the components while obtaining voltage boosting in the output voltage. A lesser number of components would ensure lesser cost while higher boosting ability increases its application potential. Based on these features, the paper presents a new topology for switched-capacitor multi-level inverter (SCMLI), which can produce an output voltage waveform of nine levels with a voltage boosting of twice the input voltage employing a single dc voltage source, three capacitors, and 11 power switches. The operation of switches, capacitors with a self-charge balancing modulation scheme, and a voltage source for producing nine-level boosted output voltage make this topology useful, and it is capable of supplying different types of load with efficiency above 97%. The simulation results and the hardware results are provided to verify the satisfactory operation of the proposed topology.
Keywords
Boost inverter topology, Multi-, Level inverter, Self, Voltage balancing, Switched capacitor, Total stanging voltage (TSV)
Divisions
fac_eng
Publication Title
International Journal of Circuit Theory and Applications
Volume
49
Issue
8
Publisher
John Wiley & Sons
Publisher Location
111 RIVER ST, HOBOKEN 07030-5774, NJ USA