摘要
以双有源全桥隔离DC-DC变换器为研究对象,开展相移控制的研究。首先,分析变换器在相移控制下的工作原理,分别推导了单相移和双相移控制下变换器的传输功率数学模型。然后,建立了变换器在单相相移和双相移下的回流功率模型,通过仿真对比了两种控制方法下的变换器回流功率。最后,通过以TMS320F28335为控制核心的1 kW SiC试验样机进行对比实验,试验结果表明:与单相移控制相比,双相移控制能有效降低回流功率,提升变流器的效率,验证了所建模型和仿真分析的正确性。
In this paper,the research of phase-shift control for the dual active full-bridge isolated DC-DC converter is carried out.Firstly,the working principle of the converter under phase shift control is analyzed,and the mathematical model of the transmission power of the convert⁃er under single-phase shift and dual-phase shift control is derived.Then,the reactive power model of the converter under single-phase phase shift and dual-phase shift is established,and the reactive power of the two control methods is compared by simulation.Finally,the compari⁃son experiment was carried out with a 1 kW SiC experimental prototype with TMS320F28335 as the control core.The experimental results show that compared with the single-phase shift control,the dual-phase shift control can effectively reduce the reactive power and improve the efficiency of the converter,which verifies the correctness of the theoretical analysis and the simulation.
作者
赵震
刘洋
马驰
谢冰若
王永翔
ZHAO Zhen;LIU Yang;MA Chi;XIE Bingruo;WANG Yongxiang(Locomotive&Car Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;Beijing Zongheng Electro-Mechanical Technology Co.Ltd.,Beijing 100094,China)
出处
《铁道机车车辆》
北大核心
2020年第6期1-5,10,共6页
Railway Locomotive & Car
基金
中国铁道科学研究院基金项目(2017YJ018)。
