Single-phase 9L switched-capacitor boost multilevel inverter (9L-SC-BMLI) topology

Daula Siddique, Marif and Aslam Husain, Mohammed and Iqbal, Atif and Mekhilef, Saad and Riyaz, Ahmed (2023) Single-phase 9L switched-capacitor boost multilevel inverter (9L-SC-BMLI) topology. IEEE Transactions on Industry Applications, 59 (1). pp. 994-1001. ISSN 0093-9994, DOI

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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.

Item Type: Article
Funders: None
Additional Information: IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), Jaipur, INDIA, DEC 14-19, 2020
Uncontrolled Keywords: Voltage; Topology; Capacitors; Switches; Boosting; Multilevel inverters; Capacitance; Boost inverter; Multilevel inverter; Nine-level (9l); Single DC source; Switched-capacitor (SC)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering > Department of Electrical Engineering
Depositing User: Ms Zaharah Ramly
Date Deposited: 30 Nov 2023 04:11
Last Modified: 30 Nov 2023 04:11

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