Improved Performance of Dual Active Bridge Converter using Particle Swarm Optimization based Phase Shift Modulation for EV Application

Abstract

The five-level dual active bridge (FLDAB) topology is recently presented to suppress the harmonic content in the high frequency link (HFL) of DC-DC converter. However, the conventional FLDAB topology requires additional four diodes and one switch for the generation of five-level at the output. These four diodes and one switch cause losses in the system and hence the efficiency of the system decreases. Keeping the drawbacks of conventional FLDAB topology in view, this paper presents a novel FLDAB topology with the lower component count i.e., two switches only. The proposed FLDAB topology based DC-DC converter implements PSO based modulation for electric vehicle application. This paper presents a detailed analysis of the proposed FLDAB topology. Further, the analysis involves a comparative evaluation against conventional FLDAB topology. The comparative results shows that the proposed topology produces lesser harmonics in the HFL of the DC-DC converter and it is more efficient than the conventional FLDAB topology. Thus presenting a promising and improved solution for DC-DC converters in electric vehicle application. The OPAL-RT hardware-in-loop emulator validates the obtained results.