A 3-Z-Network Boost Converter

Author

Guidong Zhang ; Bo Zhang ; Zhong Li ; Dongyuan Qiu ; Liqiang Yang ; Halang, Wolfgang A.

Author_Institution

Sch. of Electr. Power, South China Univ. of Technol., Guangzhou, China

Volume

62

Issue

1

fYear

2015

fDate

Jan. 2015

Firstpage

278

Lastpage

288

Abstract

A novel boost converter is proposed in this paper, which consists of three active Z-networks and is then named as a 3-Z-network boost converter. A distinct advantage of this proposal is that it can reach a high-gain voltage and well fulfill the stringent requirements from industry, particularly renewable power systems, to boost low voltage from clean sources such as photovoltaic (PV) arrays and fuel cells to high voltages for grid-connected converters. Corresponding to different states of the diodes and currents of the capacitors, six operational cases of the proposed converter, including two continuous-current modes (CCMs) and four discontinuous-current modes (DCMs), are analyzed. It is then followed with the parameters design. Finally, simulations and experiments are conducted to verify the effectiveness of the proposed converter.

Keywords

capacitors; diodes; power convertors; renewable energy sources; 3-Z-network boost converter; CCM; DCM; capacitor current; clean energy source; continuous-current mode; diode; discontinuous-current mode; grid-connected converter; high-gain voltage; renewable power system; Capacitors; Color; Discharges (electric); Equivalent circuits; Inductors; Integrated circuits; Power systems; Boost converter; Z-network; continuous-current modes (CCMs); discontinuous-current modes (DCMs); high-gain voltage;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2014.2326990

Filename

6822637