Multifunctional Triple Active Bridge Converter for EV Application

In this paper, a single-stage multifunctional converter arrangement is presented that achieves battery charging in one mode and establishes boosted dc-link voltage for the traction converter in the other. This converter eliminates the need for the electrolytic capacitor in the charge mode, improving its reliability and power density. The performance of the converter for various modulation schemes reported in the literature is evaluated and most suitable technique is recommended. Viability of the proposed arrangement and modulation scheme is studied using LTspice and PLECS simulation software.