Publication: Single-Phase 9L Switched-Capacitor Boost Multilevel Inverter (9L-SC-BMLI) Topology
Date
2023
Authors
Siddique M.D.
Aslam Husain M.
Iqbal A.
Mekhilef S.
Riyaz A.
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Electrical and Electronics Engineers Inc.
Abstract
The boosting factor has become a vital feature for a multilevel inverter to be connected with the low voltage PV system. In this paper, an inverter topology with 9 levels has been introduced. With the use of 10 switches and one switched capacitor unit, the proposed 9L-SC-BMLI has achieved nine different voltage states, and it has twice voltage gain. Without any auxiliary circuits, the voltage of the floating capacitor can maintain self-balanced. The additional feature of the proposed 9L-SC-BMLI has been the lower number of switches, voltage stress of reduced magnitude, and inherent polarity reversal of the output voltage without any H-bridge. The 9L-SC-BMLI has been controlled using the PD-PWM technique, i.e., phase-disposition pulse width modulation technique. In order to show the merits of the 9L-SC-BMLI, a detailed comparative study has been provided in the paper with several similar topologies. A number of simulation results have been provided in the paper with different working environments, and these results have been validated with the real-time results accomplished from a laboratory prototype. � 1972-2012 IEEE.
Description
Keywords
Boost inverter , multilevel inverter , nine-level (9l) , single dc source , switched-capacitor (SC) , Bridge circuits , Electric inverters , Pulse width modulation , Topology , Voltage control , Boost inverters , Boosting , Multi Level Inverter (MLI) , Multilevel inverter , Multilevels , Nine-level (9l) , Single dc source , Single phasis , Switched capacitor , Switched-capacitor , Capacitance