Study and Implementation of Dual-Mode Three-Phase Wye-Delta Connected Dual-Active-Bridge Series Resonant DC-DC Converter
| Autor: | Cheng-Yan YANG, 楊政諺 |
|---|---|
| Rok vydání: | 2019 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 107 The operations of the proposed three-phase wye-delta connected dual-active-bridge Series Resonant DC-DC Converter can be under either phase-shift (PS) mode or variable-frequency (VF) mode. For VF mode operation, The primary side Y-connected switch has zero voltage switching (ZVS), and the secondary side is -connected with a low switching loss, thus reducing switching losses and improving conversion efficiency. On the other hand, the PS mode operation with fixed switching frequency in inductive. Improve the problem of no-load distortion of the output voltage of the resonant circuit. Circuit principles and design procedures are presented and verified by the simulations and experimental results. Finally, a laboratory prototype with 2.2 kW rated power output is built and tested. Compare the efficiency of the two modes before light load, The measured efficiency is above 90 . |
| Databáze: | Networked Digital Library of Theses & Dissertations |
| Externí odkaz: |
|