Monday, 13 April 2015

PERFORMANCE IMPROVEMENT OF BOOST CONVERTER USING INTERLEAVING TECHNIQUE AND ZERO VOLTAGE SWITCHING



A.R.Siva Priya
PG student- Department of EEE – K.S.Rangasamy College of Technology, Namakkal Tamilnadu, India.


            To achieve high-power density in power supplies, it is desirable to minimize the physical size of the energy storage capacitor. The capacitance is determined by the energy storage requirement for line outage ride-through and also the ripple current handling capability of the capacitor. Interleaving is well known as an effective method to reduce the capacitor ripple current and in cases where ripple current considerations dominate, it could reduce capacitor size. High frequency operation of converters results in high switching losses. Several soft-switching techniques have been proposed in recent literatures to substantially reduce the switching loss. In this paper, a soft-switching interleaved boost converter composed of two shunted elementary boost conversion units and an auxiliary inductor is proposed. Simulation results reveal that the performance of this proposed converter is better than that of conventional boost converter.
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