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A ZVS bidirectional dc-dc converter phase shifted SPWM control for hybrid electric and fuel cell automotive application

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3 Author(s)
Kokilavani, T. ; Anna Univ., Coimbatore, India ; Selvakumar, G. ; Rajan, C.C.A.

The current-voltage-fed bidirectional dc-dc converter, which refers to a current-fed inverter at low voltage side and a voltage-fed inverter at high voltage side, can realize zero voltage switching (ZVS) for the switches with the use of phase-shift (PS) technology for future hybrid electric vehicle and fuel cell automotive applications will be presented in this paper. However, the current-fed switches suffer from high voltage spike and high circulating conduction loss. In order to solve these problems, a novel phase-shift plus sinusoidal pulse width modulation (SPSM) control ZVS bidirectional dc-dc converter is proposed in this paper. By adopting active clamping branch and PSP technology, the converter can realize ZVS for all switches in a wide range of load variation while input or output voltage varies. In addition, a novel control strategy with one port voltage regulation and another port current regulation is proposed to make energy bidirectional conversion freely. The operation principle is analyzed by a 27V/270V conversion.

Published in:

Advances in Engineering, Science and Management (ICAESM), 2012 International Conference on

Date of Conference:

30-31 March 2012