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access icon free Single-phase bidirectional ac/dc converter for plug-in electric vehicles with reduced conduction losses

Here, a non-isolated-based single-stage integrated bidirectional converter has been proposed for plug-in electric vehicles, which has the capability to achieve all modes of vehicle operation, i.e. plug-in charging, propulsion, and regenerative braking. This integrated converter has improved efficiency of 2–2.5% in propulsion boost and regenerative braking buck modes over existing non-isolated integrated converters which leads to a long run of vehicle and saves the electricity usages. Despite the proposed converter has two inductors, the size of the second inductor is approximately reduced by 35–40% compared with single-inductor converters. A detailed loss analysis of the proposed converter is investigated in propulsion boost and regenerative buck modes. Further, the design considerations of passive components are presented to achieve continuous conduction operation in each mode as well as low capacitor voltage ripple. Experimental results confirm the effectiveness of the proposed converter.

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http://iet.metastore.ingenta.com/content/journals/10.1049/iet-pel.2016.0899
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