The Scheme of Two Stage Power Module Low Surge Current Start

Zhiyuan Weng, Min Kong, G. Zhang, Ying Cheng, Zhigang Weng
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Abstract

For the two-stage power module in the distributed power supply, in order to reduce the current of the high-frequency transformer in the starting process. In this paper, a starting scheme of minimum starting current for two-stage power supply module is studied, which consists of three-phase full control rectifier in the front stage and DC-DC converter in the back stage. The dynamic balance of the primary and secondary voltage of the transformer is realized and the inrush current is suppressed by the method of synchronous starting the former and the latter DC-DC converters. The scheme does not need extra cost, and simulation results show that the scheme can effectively eliminate the input surge of power module.
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两级功率模块低浪涌电流启动方案
对于分布式电源中的两级电源模块,为了减小高频变压器在启动过程中的电流。本文研究了一种由前级三相全控整流器和后级DC-DC变换器组成的两级电源模块最小启动电流启动方案。采用同步启动直流-直流变换器的方法,实现了变压器一次电压和二次电压的动态平衡,抑制了励磁涌流。该方案不需要额外的成本,仿真结果表明该方案可以有效地消除电源模块的输入浪涌。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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