Differential DC-DC converter mode three-level inverters

Author

Ma, Feng ; Li, Lei

Author_Institution

Coll. of Autom., Nanjing Univ. of Sci. & Technol., Nanjing, China

Volume

3

fYear

2012

fDate

2-5 June 2012

Firstpage

1540

Lastpage

1544

Abstract

A family of differential DC-DC converter mode three-level (TL) single stage inverters is proposed in this paper. The inverter is constructed by input side in parallel and output in series with two absolutely identical bi-directional TL DC-DC converters. The novel inverters have the advantage of low voltage stress on the switches, strong load adaption ability, good dynamic performance, wide range of input voltage, etc. This article mainly discusses differential buck converter mode TL inverter. The operation principle of the inverter is investigated, theoretical waveforms are shown, and relevant formulas are deduced. The dual closed loop control strategy is also designed in this paper. The results of the simulation indicate the correctness of the new topology and control strategy.

Keywords

DC-DC power convertors; closed loop systems; invertors; waveform analysis; TL inverter topology; bidirectional TL converter; differential DC-DC converter; differential buck converter mode; dual closed loop control strategy; waveform analysis; Bidirectional control; Capacitors; Inductors; Inverters; Low pass filters; Stress; Topology; bi-directional; differential; inverter; three-level;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference (IPEMC), 2012 7th International

Conference_Location

Harbin

Print_ISBN

978-1-4577-2085-7

Type

conf

DOI

10.1109/IPEMC.2012.6259061

Filename

6259061