报告人：Dong-Hee Lee

讲座时间：2024年7月22日9：30—11：30

地点：校部5楼会议室

专家简介：

Dong-Hee Lee，男，1970年11月生，教授、博导，IEEE高级会员，全球前2%顶尖科学家榜单入选者，现任职于韩国 庆星大学。

学习经历：

1989.3~1996.2，釜山国立大学，电气工程系，本科；

1996.3~1998.2，釜山国立大学，电气工程系，硕士；

1998.3~2001.2，釜山国立大学，电气工程系，博士。

工作经历：

2002.3~2002.10，巨济大学，助理教授；

2002.11~2005.8，LG-OTIS，高级研究员；

2005.9~2016.8，韩国庆星大学，副教授；

2012.3~2013.2，美国威斯康辛大学麦迪逊分校，访问教授；

2016.9~至今，韩国庆星大学，教授。

主要从事电机及其控制系统研究工作，发表学术论文200余篇，其中SCI检索70余篇；授权美国专利8项、韩国专利55项，出版学术专著1部；获国际学术会议最佳论文奖10余项；担任国际学术会议ICEMS 2018副主席。现为国际高水平期刊《Journal of Electrical Engineering and Technology》、《Transactions of Korean Institute of Power Electronics》主编，《Journal of Power Electronics》副主编。

报告简介：

Nowadays, high-speed and ultra high-speed applications for home appliance, industrial and EVs are much increased due to the system efficiency and performance improvement. In low power high-speed application, the vacuum cleaner uses over than 110,000 [r/min] BLDC motor. Blender machine adopts the 25,000 [r/min] grade BLDC motor. For turbo-charger of Vehicle uses 80,000 ~ 100,000 [r/min]. Furthermore, the next generation EVs companies are trying to develop ultra high-speed over than 35,000 [r/min], 160[kW] with 800[V] battery.

In this presentation, the high-speed and ultra high-speed BLDC (Brushless DC) motor and IPMSM (Interior Permanent Magnet Synchronous Motor) applications with proper sensorless control schemes are introduced. From the 500 [W] to 160 [kW], design and control schemes of various PMSM (Permanent Magnet Synchronous Motor) are explained in detail. According to the technology trends for the EVs (Electric Vehicles) traction power, the new challenge of the power electronics is presented.