alexa Novel Interleaved Bidirectional Snubberless Soft switc
ISSN ONLINE(2278-8875) PRINT (2320-3765)

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering
Open Access

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Special Issue Article

Novel Interleaved Bidirectional Snubberless Soft switching Current Fed Full-Bridge Voltage Doublers for Fuel Cell Vehicles

V Prabakaran1, Mr. S Venkatasubramaniyan2
  1. PG Scholar, Sri Sairam Engineering College, Chennai, Tamil Nadu, India
  2. Professor, Sri Sairam Engineering College, Chennai, Tamil Nadu, India
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In this paper, initially, a novel secondary modulation technique is also proposed to clamp the voltage across the primary-side switches naturally with zero-current commutation. It, therefore, eliminates the necessity for an external active-clamped circuit or passive snubbers to absorb the switch turn-off voltage spike, a major challenge in current-fed converters. Zero-current switching of primary-side devices and zero-voltage switching of secondary-side devices are achieved, which significantly reduce switching losses. An interleaved design is adopted over a single cell to increase the power handling capacity obtaining merits of lower input current ripple, reduction of passive components’ size, reduced device voltage and current ratings, reduced conduction losses due to current sharing, and better thermal distribution. The multilevel inverter is simulated using MATLAB/ SIMULINK software for fifteen levels of step voltages with different DC sources Index Terms—Fuel Cell, Interleaved boost converter, Carrier Based PWM.

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