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A novel active resonant snubber for single switch unity power factor three-phase diode rectifiers

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Title A novel active resonant snubber for single switch unity power factor three-phase diode rectifiers
 
Creator SHUKLA, J
FERNANDES, BG
 
Subject pwm power convertors
electromagnetic interference
feedforward
power engineering computing
power factor
rectifying circuits
resonant power convertors
 
Description A new active feed-forward snubber for conventional three-phase PWM (pulse width modulated) boost rectifier using single switch operated in discontinuous conduction input current mode (DCM) is proposed. It is a resonant circuit consisting of a switch and passive components and it ensures that the main boost switch will be switched under zero-voltage (ZV) condition. Also, the boost diode operates under soft switching condition. Since the snubber circuit is a resonant circuit, the auxiliary switch itself has a soft turn-on and turn-off, resulting in reduced switching losses and electromagnetic interference (EMI). Performance of the converter circuit is predicted by simulating it on SABER. A laboratory prototype delivering 1 kW power at 245 Volts from 86.6 Vrms (L-L) is designed and developed. The simulation results obtained are verified experimentally.
 
Publisher IEEE
 
Date 2008-12-24T04:19:25Z
2011-11-27T17:32:48Z
2011-12-15T09:58:38Z
2008-12-24T04:19:25Z
2011-11-27T17:32:48Z
2011-12-15T09:58:38Z
2004
 
Type Article
 
Identifier Proceedings of the IEEE 35th Annual Power Electronics Specialists Conference (V 5), Aachen, Germany, 20-25 June 2004, 3818-3823.
0-7803-8399-0
10.1109/PESC.2004.1355150
http://hdl.handle.net/10054/494
http://dspace.library.iitb.ac.in/xmlui/handle/10054/494
 
Language en