电源学报2024，Vol.22Issue(2)：55-63,9.DOI:10.13234/j.issn.2095-2805.2024.2.55
定频移相控制六开关双谐振变换器研究
Research on Six-switch Dual-resonant Converter with Fixed-frequency Phase-shift Control
摘要
Abstract
Aimed at the poor voltage regulation performance and large circulating current of the traditional frequency-controlled LLC resonant converter in wide voltage applications,a six-switch dual-resonant LLC converter is designed,which is a hybrid combination of two full-bridge LLC resonant converters sharing one bridge arm.Compared with the traditional frequency control,fixed-frequency phase-shift control is employed in this converter to adjust the output voltage and reduce the switching frequency range.According to different connection modes of two transformers,the converter has two topological forms.When the two transformers are connected in series in the forward polarity,the converter's gain range is 0-1,which can achieve an ultra-wide output voltage range.When the two transformers are connected in series in the reverse polarity,the gain range is l-2,and the circulating current loss during the working process is small.Under the two topological forms,the ZVS turn-ON of the primary switch tube and ZCS turn-OFF of the secondary diodes can be achieved,respectively.Finally,the validity of the research in this paper was verified by Simulink simulations and experimental results.关键词
定频移相控制/谐振变换器/宽输出电压/软开关Key words
Fixed-frequency phase-shift control/resonant converter/wide output voltage/soft switching分类
信息技术与安全科学引用本文复制引用
潘健,宋豪杰,刘松林,熊嘉鑫,石迪..定频移相控制六开关双谐振变换器研究[J].电源学报,2024,22(2):55-63,9.基金项目
太阳能发电及储能运行控制湖北省重点实验室开放基金资助项目(HBSEES201902)This work is supported by Open Fund of Hubei Province Key Laboratory for Solar Power and Energy Storage Operation Con-trol under the grant HBSEES201902 （HBSEES201902）
