DocumentCode :
601647
Title :
Single-phase PWM rectifier with power decoupling ripple-port for double-line-frequency ripple cancellation
Author :
Harb, Souhib ; Balog, Robert S.
Author_Institution :
Renewable Energy & Advanced Power Electronics Research Laboratory, Electrical and Computer Engineering Department, Texas A&M University, College Station, USA
fYear :
2013
fDate :
17-21 March 2013
Firstpage :
1025
Lastpage :
1029
Abstract :
This paper proposes a new technique for double-frequency ripple-power decoupling in a single-phase PWM rectifier that does not require an electrolytic capacitor, which improves the reliability of the system for long-life applications such as LED lighting. A ripple-port is added in parallel with the output of the PWM rectifier to filter the double-line-frequency ripple using the minimum capacitance necessary for power buffering. Hence, a very small, highly reliable film capacitor is used, which will improve the reliability dramatically compared to the bulky electrolytic capacitor option, which increased the power density of the system. The proposed topology doubles the MTBF increases the lifetime by one order of magnitude. Moreover, the design and control of the ripple-port is independent from the PWM rectifier circuit, so it can be dropped in as an auxiliary circuit to an existing design.
Keywords :
LED lighting; MIL- HDBK-217; PWM rectifier; power decoupling; reliability; single-phase rectifier;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2013 Twenty-Eighth Annual IEEE
Conference_Location :
Long Beach, CA, USA
ISSN :
1048-2334
Print_ISBN :
978-1-4673-4354-1
Electronic_ISBN :
1048-2334
Type :
conf
DOI :
10.1109/APEC.2013.6520425
Filename :
6520425
Link To Document :
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