Mitigation of Switching Losses and Electro Magnetic Interference with Buck Converter for Renewable Energy Applications

Srikanth Goud, M. Kiran Kumar, K. V. Govardhan Rao, T. Anuradha Devi, Ch Rami Reddy, Thulasi Bikku, Basem Alamri, Pidikiti Tripura, Ch Naga Sai kalyan

Abstract


Power electronics have made great strides forward for the implementation of soft switching in choppers, which resulted in significant improvements in efficiency, power density, EMI suppression, and physical size reduction. Over the past forty years, many different gentle switching methods have been documented. There are always drawbacks to using a hard-switching buck converter to transform PV energy. The conversion efficiency of a freewheeling diode is lowered by EMI, high switching losses, stresses, and reverse-recovery losses. A buck converter with soft-switching cells has been offered as a solution to these problems for using PV panels. The suggested buck converter makes use of a straightforward active process of soft switching consisting of passive elements like inductors, capacitors, and power electronic devices like MOSFET. Because of this, ZVS (zero-voltage switching) is possible with active switches. This allows for a significant decrease in EMI, active switch strain, and switching losses. Freewheeling diode reverse-recovery losses can be minimized by using a passive soft-switching cell made up of a passive element capacitor and two diodes. The suggested buck converter with soft-switching cells is implemented for renewable energy sources of PV panels, Fuel cells, and Battery applications and has been validated using simulation.


Keywords


Hard-switching; Soft-switching technique; Electromagnetic interference (EMI); Zero-Current- Switching (ZCS); Zero-Voltage-Switching (ZVS); Solar PV; Fuel Cell; Battery.

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References


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DOI (PDF): https://doi.org/10.20508/ijrer.v15i3.14951.g9083

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