Development of a residential use, utility interactive PV inverter with isolation transformer-less circuit-development aspects

Author

Shinohara, H. ; Kimoto, K. ; Itami, T. ; Ambou, T. ; Okado, C. ; Nakajima, K. ; Hojo, S. ; Owada, K. ; Kuniyoshi, M. ; Sat, Y.

Author_Institution

Toshiba Corp., Tokyo, Japan

Volume

1

fYear

1994

fDate

5-9 Dec 1994

Firstpage

1216

Abstract

A 3 kW residential use, utility interactive PV inverter with an isolation transformer-less circuit has been developed. Aiming at a cost effective, compact and highly efficient PV inverter, a prototype inverter was fabricated and tested. In order to improve efficiency, AC reactors and other components were specially designed and evaluated. A conversion efficiency of 94.5% was attained. The cost of the inverter is aimed at Y50/Watt on the basis of 3000 units/month production

Keywords

DC-AC power convertors; invertors; photovoltaic power systems; reactors (electric); testing; 3 kW; 94.5 percent; AC reactors; conversion efficiency; efficiency improvements; inverter testing; isolation transformer-less circuit; residential use; utility interactive PV inverter; Circuit testing; Costs; Current transformers; Frequency; Protection; Prototypes; Pulse width modulation inverters; Research and development; Switches; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Energy Conversion, 1994., Conference Record of the Twenty Fourth. IEEE Photovoltaic Specialists Conference - 1994, 1994 IEEE First World Conference on

Conference_Location

Waikoloa, HI

Print_ISBN

0-7803-1460-3

Type

conf

DOI

10.1109/WCPEC.1994.520183

Filename

520183