Evaluation of single-stage power converte topologies for grid-connected Photovoltaic

Author

Photong, C. ; Klumpner, C. ; Wheeler, P.

Author_Institution

Dept. of Electr. & Electron. Eng., Univ. of Nottingham, Nottingham, UK

fYear

2010

fDate

14-17 March 2010

Firstpage

1161

Lastpage

1168

Abstract

Renewable energy sources such as Photovoltaics (PVs) and Fuel Cells (FCs) generate DC voltage/current and have a high internal resistance/nonlinear V/I dependence, which is why a digitally controlled power electronic interface is always needed to facilitate connection to an AC grid and maximum power extraction. This paper evaluates four single-stage power electronic converters for PVs: the traditional voltage source (VSI) and current source (CSI) inverters and the newly proposed Z-source (ZSI) inverter and CSI with series connected AC capacitors (CSI+SC).

Keywords

DC-AC power convertors; photovoltaic power systems; power capacitors; power grids; AC grid; Z-source inverter; current source inverters; digitally controlled power electronic interface; fuel cells; grid-connected photovoltaics; high internal resistance-nonlinear V/I dependence; maximum power extraction; renewable energy sources; series connected AC capacitors; single-stage power converter topology evaluation; single-stage power electronic converters; voltage source inverters; AC generators; Circuit topology; DC generators; Fuel cells; Inverters; Mesh generation; Photovoltaic systems; Power electronics; Renewable energy resources; Solar power generation;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Technology (ICIT), 2010 IEEE International Conference on

Conference_Location

Vi a del Mar

Print_ISBN

978-1-4244-5695-6

Electronic_ISBN

978-1-4244-5696-3

Type

conf

DOI

10.1109/ICIT.2010.5472595

Filename

5472595