Title :
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
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;
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
DOI :
10.1109/APEC.2012.6166109
