双向CLLLC谐振变换器的混合控制策略  

Hybrid Control Strategy of Bidirectional CLLLC Resonant Converter

作　　者：李小双 田钦元 王正仕[1] LI Xiao-shuang;TIAN Qin-yuan;WANG Zheng-shi(Zhejiang University,Hangzhou310027,China)

机构地区：[1]浙江大学,电气工程学院,浙江杭州310027

出　　处：《电力电子技术》2022年第6期111-114,140,共5页Power Electronics

摘　　要：以CLLLC谐振变换器为研究对象,其结构对称,正反向运行工作特性一致,利于实现能量的双向流动。使用变频加移相的混合控制策略使变换器在全负载范围内均可实现零电压开通(ZVS)和零电流关断(ZCS),具备宽泛的电压增益和较高的运行效率。详细分析了混合控制下变换器的运行状态和工作特性。最后通过1.6 kW的实验样机验证了理论分析的正确性和控制策略的有效性。The CLLLC resonant converter is taken as the research object,its structure is symmetrical,and its forward and reverse operation characteristics are consistent,which is conducive to the realization of the two-way flow of energy.The hybrid control strategy using frequency conversion and phase shift enables the converter to achieve zero voltage switching turn-on(ZVS) and zero current switching turn-off(ZCS) in the full load range,with wide voltage gain and high operating efficiency.The operating status and operating characteristics of the converter under hybrid control are analyzed in detail.Finally,a 1.6 kW experimental prototype verifies the correctness of the theoretical analysis and the effectiveness of the control strategy.

关 键 词：变换器 变频 移相 

分 类 号：TM46[电气工程—电器]