Analysis and implementation of a new asymmetric double H-bridge multilevel inverter

Siddique, Marif Daula and Iqbal, Atif and Sarwar, Adil and Mekhilef, Saad (2021) Analysis and implementation of a new asymmetric double H-bridge multilevel inverter. International Journal of Circuit Theory and Applications, 49 (12). pp. 4012-4026. ISSN 0098-9886, DOI

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Multilevel inverters (MLI) have become an integral component in many industrial applications including drive systems and distributed generation grid integrated systems. Efficient and cost-effective MLI topologies are required to enhance the performance of industrial systems. In the present work, an asymmetric double H-bridge MLI is proposed, which incorporates and enhances the attributes of a modified T-type converter and produces a superior output voltage waveform with the lesser component requirement. The proposed MLI can generate a 15-level output. An extendable generalized topology (cascaded) based on the proposed configuration has also been proposed. The topology is compared with recently introduced MLI topologies based on various performance parameters, and results are presented. The output voltage control is achieved using nearest level control which is a low switching frequency modulation technique for lowering the switching losses in the inverter. The hardware is realized, and performance is evaluated under different dynamically changing loading conditions.

Item Type: Article
Uncontrolled Keywords: DC AC converter; High performance converter; Multilevel inverter; Power conversion
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 24 Feb 2022 04:11
Last Modified: 24 Feb 2022 04:11

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