Zero-voltage-switching PWM three-level converter with two clamping diodes
Xinbo Ruan
Dayu Xu
Linquan Zhou
Bin Li
Qianhong Chen
Coll. of Autom. Eng., Nanjing Univ. of Aeronaut. & Astronaut.;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Aug 2002
Volume: 49,
Issue: 4
On page(s): 790- 799
ISSN: 0278-0046
INSPEC Accession Number: 7356032
Digital Object Identifier: 10.1109/TIE.2002.801053
Current Version Published: 2002-11-07
Abstract
A zero-voltage-switching pulsewidth-modulation three-level (ZVS PWM TL) converter realizes ZVS for the switches with the use of the leakage inductance (or external resonant inductance) and the output capacitors of the switches, however, the rectifier diodes suffer from reverse recovery which results in oscillation and voltage spike. In order to solve this problem, this paper proposes a novel ZVS PWM TL converter, which introduces two clamping diodes to the basic TL converter to eliminate the oscillation and clamp the rectified voltage to the reflected input voltage; in the meanwhile, all the switches keep to realize ZVS. Furthermore, the proposed ZVS PWM TL converter can be simplified by removing the two freewheeling diodes. The operation principle of the novel converter and the simplified converter are analyzed and are verified by a prototype converter. The experimental results are also included in this paper.
Index
Terms
Available to subscribers and IEEE members.
References
Available to subscribers and IEEE members.
Citing Documents
Available to subscribers and IEEE members.
Cart
