Transformerless Single-Phase Buck–Boost Inverter Decoupled From the Midpoint of the Input DC Capacitors

Demirkutlu E., Iskender I.

IEEE Transactions on Industrial Electronics, cilt.71, sa.10, ss.12244-12254, 2024 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 71 Sayı: 10
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1109/tie.2024.3349575
  • Dergi Adı: IEEE Transactions on Industrial Electronics
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Business Source Elite, Business Source Premier, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.12244-12254
  • Anahtar Kelimeler: Aalborg inverter, Ankara inverter, buck–boost, H5 inverter, inverter, single-phase, transformerless
  • Gazi Üniversitesi Adresli: Evet

Özet

A transformerless, single-phase, buck–boost inverter is proposed in this study. Unlike similar topologies, the proposed inverter does not need to have a mid-point of dc sources or dc-bus capacitors at the input side of the inverter. The proposed inverter can suppress the leakage current drawn from the input power source and provide a long-lasting solution for applications with a wide input voltage range and/or unregulated input voltage. This article presents the controller and modulation design details, and a comparative evaluation conducted for the proposed inverter. A single-phase, buck–boost inverter for realizing the power stage with 110 Vrms output ac voltage and a range of 100–200 V input dc voltage is investigated in this study. The proposed inverter has been proven through theory, computer simulations, and experimental studies with SiC MOSFETs-based prototype of a 300 VA power supply. Theory, computer simulation, and experimental results are all correlated.