1. Power-Dense Bi-Directional DC–DC Converters With High-Performance Inductors.
- Author
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Calderon-Lopez, Gerardo, Scoltock, James, Wang, Yiren, Laird, Ian, Yuan, Xibo, and Forsyth, Andrew J.
- Subjects
ROTARY converters ,MAGNETIC devices ,POWER density ,MAGNETIC cores ,ELECTRIC vehicles - Abstract
An investigation is described into the optimization of multi-phase, high power, bi-directional DC-DC interleaved converters suitable for Electric Vehicle (EV) applications. Two dual-interleaved topologies were considered initially for the optimization, the main difference being the magnetic devices: either discrete inductors (DI) or an Interphase Transformer (IPT). The comparison used a comprehensive multi-objective design optimization procedure for an 80 kW case study. High performance inductors comprising a split-core structure and dual-foil windings to reduce losses, and a 180 °C core, enabled the DI to be competitive with IPT in terms of power density and efficiency. The optimized designs are validated experimentally with an 80 kW bi-directional SiC DC-DC converter, achieving a power density of 31.4 kW/L and specific power of 15.7 kW/kg. The study is then extended to 100-kW three and four-phase interleaved topologies. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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