Details

Autor(en) / Beteiligte

• Khan, Ashraf Ali
• Lu, Yun W.
• Khan, Usman Ali
• Wang, Liwei
• Eberle, Wilson
• Agamy, Mohammed

Titel

Novel Transformerless Buck-Boost Inverters Without Leakage Current

Ist Teil von

• IEEE transactions on industrial electronics (1982), 2020-12, Vol.67 (12), p.10442-10454

Ort / Verlag

New York: IEEE

Erscheinungsjahr

2020

Quelle

IEEE Xplore

Beschreibungen/Notizen

• This article presents novel transformerless single-stage buck-boost inverters with reactive power flow capability. The common-mode voltage of the proposed inverters is constant, which results in negligible leakage current. The output current of the proposed inverters is continuous that lowers the output harmonics and size of the output filtering capacitor. In the proposed inverters, only two switches receive high-frequency switching signals at a time, which reduces the power loss. The proposed topologies can achieve efficient power conversion with a wide input voltage range. A 120-Vrms/60-Hz output voltage, 74-200-V input voltage, and 500-W output power hardware prototype of the proposed inverter is built and tested with resistive, partially inductive, and partially capacitive loads. A peak efficiency of 97.3% is obtained.