Abstract
Objectives: The intention of this paper is to project a soft switching bidirectional buck boost converter with high efficiency, simple structure for the application of battery charging and discharging. Methods/Statistical Analysis: MATLAB/ SIMULINK software has been used to obtain the simulation results and thereby efficiency of the projected configuration is evaluated and examine with the traditional transformer less bi-directional converters. Findings: The proposed converter introduces a simple auxiliary circuit that not only reduces the switching stress but also provides high efficiency to the converter. This non isolated soft switching bidirectional buck-boost converter operation is based on two categories namely Boost and Buck mode as same that of other bidirectional converter (BDC) topologies but with simple characteristics. The proposed converter with auxiliary/snubber achieves soft switching at all step-up and step-down modes. The various operational modes of the proposed method have been investigated throughout the paper. Application/Improvements: The proposed system is suitable for battery charging and discharging systems.Keywords: Auxiliary Circuit, Battery Charging and Discharging, Bidirectional Buck-Boost Converter, Efficiency, Soft Switching
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