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A LLC-LC Type Bidirectional Control Strategy for LLC Resonant Converter in Power Electronic Traction Transformer
IEEE Transactions on Industrial Electronics ( IF 7.7 ) Pub Date : 2018-11-01 , DOI: 10.1109/tie.2018.2808917 Jiepin Zhang , Jianqiang Liu , Jingxi Yang , Nan Zhao , Yang Wang , Trillion Q. Zheng
IEEE Transactions on Industrial Electronics ( IF 7.7 ) Pub Date : 2018-11-01 , DOI: 10.1109/tie.2018.2808917 Jiepin Zhang , Jianqiang Liu , Jingxi Yang , Nan Zhao , Yang Wang , Trillion Q. Zheng
An LLC-LC type bidirectional control strategy for an LLC resonant converter is proposed in this paper. It can achieve bidirectional power flow automatically without any power flow detection procedures. Meanwhile, the soft-switching can be always guaranteed all the time. In order to adapt to the proposed control strategy, a no-load-point-based design method is put forward in this paper, which can rapidly obtain optimal parameters of an LLC resonant converter. What is more, by using the proposed control strategy, the starting characteristic in no-load condition can be improved, output voltage rising and current surge risk can be avoided. Finally, an experimental platform of power electronic traction transformer power cell (consisting of a single-phase rectifier and a bidirectional LLC resonant converter) is built to verify the validity of the proposed control strategy.
中文翻译:
电力电子牵引变压器中LLC谐振变换器的LLC-LC型双向控制策略
本文提出了一种用于 LLC 谐振转换器的 LLC-LC 型双向控制策略。无需任何潮流检测程序,即可自动实现双向潮流。同时,始终可以保证软切换。为了适应所提出的控制策略,本文提出了一种基于空载点的设计方法,可以快速获得LLC谐振变换器的最佳参数。更重要的是,通过使用所提出的控制策略,可以改善空载条件下的启动特性,避免输出电压上升和电流浪涌风险。最后,
更新日期:2018-11-01
中文翻译:
电力电子牵引变压器中LLC谐振变换器的LLC-LC型双向控制策略
本文提出了一种用于 LLC 谐振转换器的 LLC-LC 型双向控制策略。无需任何潮流检测程序,即可自动实现双向潮流。同时,始终可以保证软切换。为了适应所提出的控制策略,本文提出了一种基于空载点的设计方法,可以快速获得LLC谐振变换器的最佳参数。更重要的是,通过使用所提出的控制策略,可以改善空载条件下的启动特性,避免输出电压上升和电流浪涌风险。最后,