A Novel Transformerless Single-Phase Three-Level Buck-Boost Inverter

Demirkutlu E., Iskender I.

38th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2023, Florida, Amerika Birleşik Devletleri, 19 - 23 Mart 2023, cilt.2023-March, ss.114-120, (Tam Metin Bildiri) identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 2023-March
  • Doi Numarası: 10.1109/apec43580.2023.10131374
  • Basıldığı Şehir: Florida
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Sayfa Sayıları: ss.114-120
  • Anahtar Kelimeler: Aalborg inverter, Ankara inverter, buck-boost, H5 inverter, inverter, single-phase, three-level, Transformerless
  • Gazi Üniversitesi Adresli: Evet

Özet

This paper proposes a novel transformerless, single-phase, three-level, buck-boost 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 range and unregulated input voltage. Unlike similar topologies, in the proposed inverter there is no need to have a mid-point of DC sources or DC bus capacitors at the input side of the inverter. A single-phase, three-level, buck-boost inverter for realizing the power stage with 110-Vrms output AC voltage and a range of 100V-200V input DC voltage is investigated in this study. The proposed topology 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.