An Isolated Bi-Directional Buck Boost Converter with Flyback Snubber

Author(s):

Mr.R.VELMURUGAN , Christian College of Engineering and Technology Oddanchatram-624619; A.CHANDRASEKHAR, Christian College of Engineering and Technology Oddanchatram-624619

Keywords:

Buck Boost, Flyback Snubber

Abstract:

In renewable DC systems bi-directional DC-DC converters are used for high voltage and high power applications. One such isolated bi-directional full bridge buck boost converter with a flyback snubber that has significant voltage spike clamping capability is proposed in this project.. An isolated bidirectional full-bridge dc–dc converter with high conversion ratio, high output power, and soft start-up capability is also proposed. The use of a capacitor, a diode and a flyback converter can clamp the voltage spike caused by the current difference between the current-fed inductor and leakage inductance of the isolation transformer and can reduce the current flowing through the active switches at the current-fed side. The simulated model of the conventional converter without flyback snubber,proposed converter with flyback snubber as well as modification of the proposed method with RCD snubber is developed in MATLAB software for both buck and boost modes.

Other Details:

Manuscript Id	:	IJSTEV2I10086
Published in	:	Volume : 2, Issue : 10
Publication Date	:	01/05/2016
Page(s)	:	403-408

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