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David Xu: High Power Density Power Converters for Energy Storage and EV Charging
发布日期:2019-06-06  字号:   【打印

报告时间:2019年6月10日(星期一)10:10

报告地点:逸夫楼1117

  :徐德伟(David Xu) 教授

工作单位:瑞尔森大学(Ryerson University

举办单位:电气与自动化工程学院

报告人简介

David Xu,瑞尔森大学教授。2001年获得清华大学电气工程硕士和博士学位,之后作为博士后研究员加入瑞尔森大学(Ryerson University)电动驱动及其应用研究实验室(LEDAR)。2003年成为瑞尔森大学(Ryerson University)电子和计算机工程系教授。曾与各国企业合作开发中压驱动系统、航空航天功率转换器、开关电源和储能系统等技术。至今已发表论文100多篇,拥有9项美国专利。其研究方向为:高功率密度功率转换器、先进数字控制、可再生能源系统、储能和智能电网。

报告简介

With applications of large-scale energy storage system in transportation and utility industry, power converters play more and more important roles in the system to bridge the connections of different system. In most applications, power density and efficiency are the two critical requirements to reduce the footprint size of overall system. In order to address the industry needs, innovative topologies including high power single stage AC/DC converters are developed for high power EV charging. These topology features higher efficiency and higher power density but require tremendous efforts for complex modulation and control. In this presentation, matrix converter based quasi-resonant single-stage converters are discussed. Prototypes and experimental results show that the developed topologies are very suitable for next generation high power EV charger with SiC devices. The combinational techniques of soft switching and single-stage in the converter design can significantly reduce the converter size and increase the efficiency.


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