Design of Hybrid Switched Diode Multilevel Inverter Using Single DC Source

Karakılıç M., Almalı M. N.

Journal of Electrical Engineering and Technology, 2024 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1007/s42835-024-01832-9
  • Dergi Adı: Journal of Electrical Engineering and Technology
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC
  • Anahtar Kelimeler: FPGA implementation, High frequency link (HFL), Multilevel inverter, Reduced switch count, Single DC source, Switched diode MLI
  • Van Yüzüncü Yıl Üniversitesi Adresli: Evet

Özet

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: (Figure presented.).