Research Article Open Access

High Performance Soft Switched DC-DC Boost Converter Suitable for PV Applications

Abstract

The conventional converters used in harvesting the energy from solar power have some drawbacks associated with them. In order to eliminate them a new soft switching scheme is proposed with ZVT and ZCT techniques to reduce the switching losses. In the proposed converter a new Active snubber cell is used for suppressing the transients in the dc-dc converter due to which voltage stress and current stress on a semiconductor switches is eliminated. The snubber cell consists of the auxiliary switch with diodes, capacitors associated with them. In additional to them a coupled inductor assembly is utilized for the transformation of the stress from switches to the output load. The stress transfer to load mainly depends upon the number of turns of the coil. The proposed converter is simulated using the MATLAB Simulink and the output voltage is obtained.

P.Nammalvar, P.Balaji