Configurable front-end converters for multicurrent locomotives operated on 16 2/3 Hz AC and 3 kV DC systems
Configurable front-end converters for multicurrent locomotives operated on 16 2/3 Hz AC and 3 kV DC systems
复制标题
适用于在 16 2/3 Hz 交流和 3 kV 直流系统上运行的多电流机车的可配置前端转换器
DOI：
10.1109/tpel.2003.816191
复制
发表时间：
2003
影响因子：
6.7
通讯作者：
C. Zimmermann
中科院分区：
文献类型：
--
作者：
A. Rufer;N. Schibli;C. Chabert;C. Zimmermann
提出了一种可配置的转换器拓扑作为机车的前端转换器，它可以在高压交流系统和中压直流系统上运行。可配置转换器是在多级链的基础上实现的，其中所有模块均通过可逆且隔离的 DC-DC 级馈电。与传统的低频电压变压器相比，DC-DC 转换器隔离级中使用的中频变压器可以显着减轻机车的重量。提出了使用硬开关技术的第一个解决方案，使用三倍硅转换。然后提出了基于 ZVT/ZCS 技术的第二种解决方案，其优点是理想情况下仅具有两倍的硅传导。原型模块已通过二极管和 IGBT 的组合实现，以提供反向阻断装置。还介绍了两阶段转换的初步结果。
A configurable converter topology is presented as front-end converter for a locomotive that can be operated as well on a high voltage AC-system as on a medium voltage DC-system. The configurable converter is realized on the base of a multilevel chain, where all modules are fed through reversible and isolated DC-DC stages. The medium frequency transformers used in the isolation stages of the DC-DC converters allow a significant weight reduction of the locomotive, in comparison with the classical low-frequency voltage-transformers. A first solution using hard switching techniques is presented, using a three-times silicon-conversion. A second solution based on ZVT/ZCS techniques is then presented, with the advantage of having ideally only a two times silicon conduction. Prototype modules have been realized with association of diodes and IGBTs in order to provide reverse-blocking devices. First results of the two-stage conversion are also presented.