应用于并联DC/DC变换器的新型自动均流技术研究

Research on a novel automatic current-sharing technique for parallel DC/DC converter

研究了一种应用于并联DC/DC变换器的基于均流误差信号的自动均流技术,在详细分析其工作原理的基础上,针对存在的模块故障导致均流失效的问题,提出了改进措施,即故障模块排除方案,阐明了故障排除的实现过程。最后通过研制一台三相并联BUCK变换器的原理样机,验证了理论分析的正确性。

A new type of automatic current-sharing technique for parallel DC / DC converter is studied, and the principle of the current-sharing technique is analyzed in detail. On the basis of this, the improvement is made, the exclusion scheme of fault module is put forward, and the realization process of fault elimination is clarified. At last, the principle prototype of a three phase parallel BUCK converter is developed, so that the correctness of theoretical analysis is verified.