级联型LLC协同控制及最小损耗研究  

Synergetic Control and Minimum Loss of Cascaded LLC Converter

作　　者：薛宇航 杨国良[1] XUE Yu-hang;YANG Guo-liang(Yanshan University,Qinhuangdao 066000,China)

机构地区：[1]燕山大学,电气工程学院,河北秦皇岛066000

出　　处：《电力电子技术》2024年第6期57-60,共4页Power Electronics

基　　金：国家自然科学基金(61873226)。

摘　　要：针对DC/DC变换器的宽输入/输出电压范围功能需求急剧增加的问题,提出了一种新型的级联型LLC变换器,其由新型LLC与双重交错并联Boost级联而成,利用两种变换器的特点,实现整体电路的宽输入和宽输出的电压范围。此外,针对所提的级联型LLC变换器分别提出了协同控制策略和最小损耗控制策略,更加拓宽了整体变换器的输入/输出电压范围并使其工作效率达到最高。最后通过实验验证了所提的级联型LLC变换器和其控制策略的有效性和实用性。In response to the surging demand for the wide input/output voltage range functionality in DC/DC converters,a cascaded LLC converter is proposed which is cascaded by a novel LLC converter and a double staggered parallel Boost converter.The proposed design is capitalized on the characteristics of both converters to achieve a wide input and output voltage range for the overall system.Additionally,specific to the introduced cascaded LLC converter,synergetic control and minimum loss control strategies are proposed.These strategies not only further extend the overall converter input/output voltage ranges but also optimize its operational efficiency.Experimental validation is conducted to affirm the effectiveness and practicality of the proposed cascaded LLC converter and its control strategies.

关 键 词：变换器 协同控制 最小损耗 

分 类 号：TM46[电气工程—电器]