High-voltage tapped-inductor buck converter auxiliary power supply for cascaded converter submodules
High-voltage tapped-inductor buck converter auxiliary power supply for cascaded converter submodules
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DOI：
10.1109/ecce.2012.6342417
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发表时间：
2012-11
期刊：
影响因子：
--
通讯作者：
T. Modeer;S. Norrga;H. Nee
中科院分区：
文献类型：
--
作者：
T. Modeer;S. Norrga;H. Nee
本文首先讨论了大功率模块化多电平变流器子模块对辅助电源的要求。接下来，介绍了低功耗高压降压转换器设计中最具挑战性的几个问题。此外，还分析了一种合适的拓扑结构--抽头电感降压转换器，它克服了大部分问题。给出了描述运算和电路仿真的解析表达式。最后，给出了采用自主高压开关的3KV、100W原型变流器的实验评价。
This paper firstly presents a discussion of the requirements for an auxiliary power supply for high-power modular multilevel converter submodules. Next, some of the most challenging problems in designing a low power high voltage step-down converter are presented. Further, a suitable topology, the tapped-inductor buck converter, that overcomes most of the problems is analyzed. Both analytical expressions describing the operation and circuit simulations are presented. Finally, an experimental evaluation of a 3 kV, 100W prototype converter utilizing an autonomous high-voltage switch is presented.