A multicellular DCX （dc-dc transformer） using unregulated cell converters has been proposed for the environmentally friendly data centers. The high speed cell converter with the switching frequency over MHz behaves ...A multicellular DCX （dc-dc transformer） using unregulated cell converters has been proposed for the environmentally friendly data centers. The high speed cell converter with the switching frequency over MHz behaves as an ideal transformer, and this behavior solves the voltage imbalance issue in the multicellular converter topology. The analysis of the unregulated cell converter is conducted by using the state space averaging method, and the operation condition for the ideal transformer is specified. The behavior of the multicellular DCX using the high speed cell converters has been also analyzed, and the voltage imbalance issue among cell converters is discussed quantitatively. A prototype of a 19.2 kW 384 V-384 V multicellular DCX using sixty-four unregulated cell converters is fabricated and the validity of the analyses is verified.展开更多
随着5G、物联网等技术的普及和应用,边缘数据中心(Data Center,DC)的需求将不断增长,未来,边缘DC将向小型化、智能化、绿色化的方向发展。一体化电力模块凭借其部署周期短、占地面积小、高效省电、智能管理以及运行安全等优势,将成为边...随着5G、物联网等技术的普及和应用,边缘数据中心(Data Center,DC)的需求将不断增长,未来,边缘DC将向小型化、智能化、绿色化的方向发展。一体化电力模块凭借其部署周期短、占地面积小、高效省电、智能管理以及运行安全等优势,将成为边缘DC供配电系统的建设可行方案之一。对一体化电力模块进行介绍,同时以某边缘DC实际工程项目设计为例,对边缘DC一体化电力模块设计方案和高低压柜+不间断电源(Uninterruptible Power Supply,UPS)设计方案进行对比分析,为相关领域的研究人员和实践者提供参考。展开更多
文摘A multicellular DCX （dc-dc transformer） using unregulated cell converters has been proposed for the environmentally friendly data centers. The high speed cell converter with the switching frequency over MHz behaves as an ideal transformer, and this behavior solves the voltage imbalance issue in the multicellular converter topology. The analysis of the unregulated cell converter is conducted by using the state space averaging method, and the operation condition for the ideal transformer is specified. The behavior of the multicellular DCX using the high speed cell converters has been also analyzed, and the voltage imbalance issue among cell converters is discussed quantitatively. A prototype of a 19.2 kW 384 V-384 V multicellular DCX using sixty-four unregulated cell converters is fabricated and the validity of the analyses is verified.
文摘随着5G、物联网等技术的普及和应用,边缘数据中心(Data Center,DC)的需求将不断增长,未来,边缘DC将向小型化、智能化、绿色化的方向发展。一体化电力模块凭借其部署周期短、占地面积小、高效省电、智能管理以及运行安全等优势,将成为边缘DC供配电系统的建设可行方案之一。对一体化电力模块进行介绍,同时以某边缘DC实际工程项目设计为例,对边缘DC一体化电力模块设计方案和高低压柜+不间断电源(Uninterruptible Power Supply,UPS)设计方案进行对比分析,为相关领域的研究人员和实践者提供参考。
