自主均流法在开关变换器并联系统中的研究

Automatic Current-Sharing Technique in Parallel Switching Converters

大功率电源系统为保证模块间电流应力和热应力的均匀分配,防止一台或多台模块运行在电流极限值,其变换器采用了并联的拓扑结构、均分电流技术和高性能控制策略。文中分析了自主均流法的工作原理和性能特点,介绍了两种改进式的均流方法,最后指出了自主均流法的不足。

The working principles and performance advantages of automatic current - sharing technique are analysed. proved automatic current-sharing techniques are introduced. The disadvantages of the technique are pointed out as well.