Design of Hybrid Switched Diode Multilevel Inverter Using Single DC Source

This paper presents a novel design of a 21-level switched diode multilevel inverter using a High-Frequency Link (HFL) and a single DC source. The inverter structure consists of 10 power switches and 2 diodes, which significantly reduces the number of components compared to existing topologies. Despi...

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Bibliographic Details
Published inJournal of electrical engineering & technology Vol. 19; no. 7; pp. 4169 - 4180
Main Authors Karakılıç, Murat, Almalı, M. Nuri
Format Journal Article
LanguageEnglish
Published Singapore Springer Nature Singapore 01.09.2024
Subjects
Electrical Engineering
Electrical Machines and Networks
Electronics and Microelectronics
Engineering
Instrumentation
Original Article
Power Electronics
High frequency link (HFL)
Single DC source
FPGA implementation
Switched diode MLI
Reduced switch count
Multilevel inverter
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Summary:This paper presents a novel design of a 21-level switched diode multilevel inverter using a High-Frequency Link (HFL) and a single DC source. The inverter structure consists of 10 power switches and 2 diodes, which significantly reduces the number of components compared to existing topologies. Despite the utilization of HFL for generating multiple voltages, the analysis reveals that the majority (65%) of the power is directly drawn from the single DC source, while only a small portion (35%) passes through the HFL. This reduces the size of the high-frequency transformer and the need for a large DC-DC converter. The proposed topology achieves 21 levels with a low output total harmonic distortion (THD) of 3.99% without the use of additional filters. These features make it suitable for various applications, including electric vehicles and motor systems. Graphical Abstract
ISSN:1975-0102
2093-7423
DOI:10.1007/s42835-024-01832-9