A fault-tolerant switching scheme for a photovoltaic high-frequency-link inverter

Author

Tajfar, Alireza ; Mazumder, Sudip K.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Illinois, Chicago, IL, USA

fYear

2012

fDate

5-9 Feb. 2012

Firstpage

2087

Lastpage

2094

Abstract

A modulation-based fault-tolerant scheme is outlined for an isolated photovoltaic high-frequency-link (HFL) inverter. It comprises a front end dc/pulsating-dc dc/ac converter followed by a unidirectional ac/dc converter followed by an ac/ac converter. The fault-tolerant scheme ensures operation under different types of fault conditions in the front end dc/pulsating-dc dc/ac converter without redundant circuits. Detailed results on the switching scheme as well as experimental validation using a fabricated prototype are presented.

Keywords

DC-AC power convertors; DC-DC power convertors; fault tolerance; invertors; modulation; photovoltaic power systems; HFL inverter; fault-tolerant switching scheme; front end dc/pulsating-dc dc/ac converter; modulation-based fault-tolerant scheme; photovoltaic high-frequency-link inverter; unidirectional ac/dc converter; Bridge circuits; Fault tolerance; Fault tolerant systems; Inverters; Pulse width modulation; Switches; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition (APEC), 2012 Twenty-Seventh Annual IEEE

Conference_Location

Orlando, FL

Print_ISBN

978-1-4577-1215-9

Electronic_ISBN

978-1-4577-1214-2

Type

conf

DOI

10.1109/APEC.2012.6166109

Filename

6166109