Abstract |
Modern railway auxiliary supply uses a Dual-Active-Bridge whose input voltage, subject to variations,is regulated by means of a front-end boost stage. With the aim of gaining weight and simplicity, thispaper proposes to implement Triple-Phase-Shift modulation in order to maintain high performance when this front-end stage is removed. Analytical models including a more accurate magnetic power losses calculation are developed and results in terms of efficiency are presented for comparison. |