A Novel Five-Level Flying-Capacitor Dual Buck Inverter

Miao Liu; Feng Hong; Cheng-Hua Wang

A Novel Five-Level Flying-Capacitor Dual Buck Inverter

Miao Liu

Feng Hong

Cheng-Hua Wang

Vol. 16, No. 1, pp. 133-141, Jan. 2016

10.6113/JPE.2016.16.1.133

Balancing capacitor voltage

Dual buck

Five-level inverter

Flying-capacitor

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Abstract

This paper focuses on the development of a Five-Level Flying-Capacitor Dual Buck Inverter (FLFCDBI) based on the main circuit of dual buck inverters. This topology has been described as not having any shoot-through problems, no body-diode reverse recovery problems and the half-cycle work mode found in the traditional Multi-Level Flying-Capacitor Inverter (MLFCI). It has been shown that the flying-capacitor voltages of this inverter can be regulated by the redundant state selection within one pole. The voltage balance of the flying-capacitors can be achieved by charging or discharging in the positive (negative) half cycles by choosing the proper logical algorithms. This system has a simple structure but demonstrates improved performance and reliability. The validity of this inverter is conformed through computer-aided simulation and experimental investigations.

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Cite this article

[IEEE Style]

M. Liu, F. Hong, C. Wang, "A Novel Five-Level Flying-Capacitor Dual Buck Inverter," Journal of Power Electronics, vol. 16, no. 1, pp. 133-141, 2016. DOI: 10.6113/JPE.2016.16.1.133.

[ACM Style]

Miao Liu, Feng Hong, and Cheng-Hua Wang. 2016. A Novel Five-Level Flying-Capacitor Dual Buck Inverter. Journal of Power Electronics, 16, 1, (2016), 133-141. DOI: 10.6113/JPE.2016.16.1.133.