Three‑phase modular boost–buck inverter analysis and experimental validation

Yongjie Han; Zhihong Wu

Three‑phase modular boost–buck inverter analysis and experimental validation

Yongjie Han

Zhihong Wu

Vol. 22, No. 9, pp. 1508-1521, Sep. 2022

10.1007/s43236-022-00460-8

Abstract

A modular three-phase boost–buck inverter (BBI) is presented in this paper. The BBI has the advantages of voltage stepup/step-down capability, high-quality/low-harmonic output voltage/current waveforms and high efficiency. The operation principle, semiconductor stresses including voltage stress and current stress, conduction loss, and switching loss are analyzed in detail. The performance of the BBI is experimentally validated on a 10 kW prototype based on SiC MOSFETs operating at a switching frequency of 50 kHz. Comparisons are made between the BBI and the conventional two-level voltage source inverter with a boost dc/dc stage. The nominal efficiency of the BBI is 0.9% higher and the THD of the load current is 7.2 times lower than those of the conventional topology.

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Cite this article

[IEEE Style]

Y. Han and Z. Wu, "Three‑phase modular boost–buck inverter analysis and experimental validation," Journal of Power Electronics, vol. 22, no. 9, pp. 1508-1521, 2022. DOI: 10.1007/s43236-022-00460-8.

[ACM Style]

Yongjie Han and Zhihong Wu. 2022. Three‑phase modular boost–buck inverter analysis and experimental validation. Journal of Power Electronics, 22, 9, (2022), 1508-1521. DOI: 10.1007/s43236-022-00460-8.