THD analysis and cost comparison for an N-level H-bridge inverter incorporating passive and active filters
Department of Electrical and Computer Engineering, Prairie View A&M University, Prairie View, United States of America.
Research Article
World Journal of Advanced Engineering Technology and Sciences, 2022, 05(02), 045–053.
Article DOI: 10.30574/wjaets.2022.5.2.0043
Publication history:
Received on 16 February 2022; revised on 21 March 2022; accepted on 23 March 2022
Abstract:
Multilevel H-bridge inverters have grown in popularity in electronic direct current (DC) to alternating current (AC) power conversion. In the renewable energy field, H-bridge inverters are used for converting DC voltage obtained from solar panels to AC voltage. However, H-bridge inverters produce undesirable odd harmonics in their output. Several H-bridges are, therefore, usually cascaded to reduce the total harmonic distortion (THD) in their output, but the results aren’t satisfactory in most cases. In this paper, both active and passive filters are incorporated in a cascaded H-bridge inverter to reduce the THD further. Then cost comparison is made of cascaded H-bridge inverters (3, 5, 7, 9, and 11-levels) without a filter and multilevel cascaded H-bridge inverters (3, 5, 7, 9, and 11-levels) with a passive filter or active filter. Powersim (PSIM) platform is used to perform the THD analysis.
Keywords:
H-bridge; THD; Filters; Inverters
Full text article in PDF:
Copyright information:
Copyright © 2022 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution Liscense 4.0