Analysis and design of energy storage for current-source 1-ph grid-connected PV inverters

Author

Ertasgin, G. ; Whaley, D.M. ; Ertugrul, N. ; Soong, W.L.

Author_Institution

Sch. of Electr. & Electron. Eng., Univ. of Adelaide, Adelaide, SA

fYear

2008

fDate

24-28 Feb. 2008

Firstpage

1229

Lastpage

1234

Abstract

This paper examines the analysis and design of a DC link inductor for a current source 1-ph grid-connected photovoltaic (PV) inverter. Firstly the effect of voltage or current ripple on the PV array average output power is examined using a normalized PV output characteristic. Secondly the design of the inductor and in particular the trade-off between the PV array output power loss and the inductor copper loss are discussed. An inductor was built and a comparison of the calculated and measured loss breakdown is presented.

Keywords

electric breakdown; energy storage; invertors; photovoltaic power systems; power grids; power inductors; power system interconnection; DC link inductor; current ripple; energy storage design; grid-connected PV inverters; inductor copper loss; measured loss breakdown; photovoltaic inverter; voltage ripple; Copper; Electric breakdown; Energy storage; Inductors; Inverters; Loss measurement; Photovoltaic systems; Power generation; Solar power generation; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2008. APEC 2008. Twenty-Third Annual IEEE

Conference_Location

Austin, TX

ISSN

1048-2334

Print_ISBN

978-1-4244-1873-2

Electronic_ISBN

1048-2334

Type

conf

DOI

10.1109/APEC.2008.4522879

Filename

4522879