电工技术学报2017，Vol.32Issue(4)：48-57,10.
宽输入LLC谐振变换器多电平控制策略
Multi-Level Control Strategy of Wide Input LLC Resonant Converter
摘要
Abstract
In order to meet the requirements of high efficiency and the wide range of input voltage adaptability, a multi-level operating mode half-bridge LLC is obtained. It can operate in two different modes according to the level of input voltage by adjusting the control strategy of three-level LLC resonant converter. The adaptable range of input voltage is hence doubled with the same parameters of resonant elements. The limiting factors on adaptable range of input voltage are defined based on the analysis of the voltage gain characteristics and power loss of LLC converter. After analyzing the multi-level operating mode and its influence on the adaptable range of input voltage, the control strategy is defined. Simulation and experimental results verify that the multi-level operating mode half-bridge LLC has wide input adaptability and high efficiency.关键词
宽范围输入/高效率/控制策略/多电平工作模式/电压增益特性Key words
Wide range of input/high efficiency/control strategy/multi-level operating mode/voltage gain characteristic分类
信息技术与安全科学引用本文复制引用
李浩昱,李振伟,赵雷,张继红..宽输入LLC谐振变换器多电平控制策略[J].电工技术学报,2017,32(4):48-57,10.基金项目
台达电力电子科教发展基金资助项目(DREG2011006). （DREG2011006）
