@inproceedings{08363be5cdae417ab6a3f8b9dd76924e,
title = "Transformer Optimisation of the Integrated AC/DC–DC/AC Bidirectional Converter for Vehicle to Grid Interfacing",
abstract = "For a Vehicle to Grid (V2G) interfacing an integrated AC/DC-DC/AC bi-directional converter is presented in this paper. It is realised as a combination of 2.5 kW DC-AC grid inverter and bidirectional Dual Active Bridge (DAB) dc-dc converter for battery charging and for feeding the electric energy stored the battery back into the grid. For the target micro-sized electrical cars, the main challenge is the realization of a light-weight power converter. Particularly the high frequency power transformer design optimization and high frequency effects like skin and proximity losses in the transformer windings are analysed in details. Based on finite element method (FEM) numerical simulation as well as on analytical approach the stranding level proximity losses in a Litzwire are estimated and an optimal number of the Litzwire strands as well as their diameter are determined for minimum losses in a given transformer. The resulting high efficiency bi-directional DAB converter with optimised transformer for Electrical Vehicle battery charging and grid interfacing system is implemented in a prototype design.",
keywords = "Charging (batteries), DC-DC converters, Energy management, Intelligent robots, Power electronics, Power transformers, Transformer windings, Secondary batteries",
author = "Ashot Melkonyan and Jiabin Wang and Kai Kriegel and Hoang, {Khoa Dang} and Roman Nestlinger",
note = "Copyright: Copyright 2014 Elsevier B.V., All rights reserved.; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2013 ; Conference date: 14-05-2013 Through 16-05-2013",
year = "2013",
month = may,
day = "14",
language = "English",
isbn = "9783800735051",
volume = "1",
series = "PCIM Europe Conference Proceedings",
publisher = "Mesago PCIM GmbH",
pages = "428--437",
booktitle = "Proceedings - PCIM Europe 2013",
address = "Germany",
}