Design considerations of inductor for 500 kVA PV inverter based on Euro efficiency

Author

Chen Wei ; He Jiannong ; Hong Tianding

Author_Institution

Fuzhou Univ., Fuzhou, China

fYear

2014

fDate

24-27 June 2014

Firstpage

1

Lastpage

4

Abstract

Inductors are very critical for the size, weight, and the efficiency in PV inverter system. The loss models of high frequency eddy current loss and the core loss of laminated silicon steel were built for both line frequency and high frequencies excitations. Then the total losses were analyzed which have complex relationship with winding turn numbers, foil thicknesses and the power ratings. Finally, the equivalent European efficiency considering the inductor´s effect itself was analyzed to get the maximum EU efficiency for inductor winding design. The analysis and the results were based on a 500kVA 3-phase PV inverter.

Keywords

DC-AC power convertors; eddy current losses; invertors; power inductors; transformer windings; 3-phase PV inverter system; EU efficiency; European efficiency; core loss; foil thicknesses; high frequency eddy current loss; high frequency excitations; inductor design considerations; inductor winding design; inductors effect; laminated silicon steel; line frequency; loss models; power ratings; winding turn numbers; Core loss; Eddy currents; Inductors; Inverters; Silicon; Steel; Windings; EU efficiency; PV inverter; design; inductor; losses;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics for Distributed Generation Systems (PEDG), 2014 IEEE 5th International Symposium on

Conference_Location

Galway

Type

conf

DOI

10.1109/PEDG.2014.6878682

Filename

6878682