報告人：Dong-Hee Lee

講座時間：2024年7月22日9：30—11：30

地點：校部5樓會議室

專家簡介：

Dong-Hee Lee，男，1970年11月生，教授、博導，IEEE高級會員，全球前2%頂尖科學家榜單入選者，現(xiàn)任職于韓國 慶星大學。

學習經(jīng)歷：

1989.3~1996.2，釜山國立大學，電氣工程系，本科；

1996.3~1998.2，釜山國立大學，電氣工程系，碩士；

1998.3~2001.2，釜山國立大學，電氣工程系，博士。

工作經(jīng)歷：

2002.3~2002.10，巨濟大學，助理教授；

2002.11~2005.8，LG-OTIS，高級研究員；

2005.9~2016.8，韓國慶星大學，副教授；

2012.3~2013.2，美國威斯康辛大學麥迪遜分校，訪問教授；

2016.9~至今，韓國慶星大學，教授。

主要從事電機及其控制系統(tǒng)研究工作，發(fā)表學術(shù)論文200余篇，其中SCI檢索70余篇；授權(quán)美國專利8項、韓國專利55項，出版學術(shù)專著1部；獲國際學術(shù)會議最佳論文獎10余項；擔任國際學術(shù)會議ICEMS 2018副主席。現(xiàn)為國際高水平期刊《Journal of Electrical Engineering and Technology》、《Transactions of Korean Institute of Power Electronics》主編，《Journal of Power Electronics》副主編。

報告簡介：

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.