1. The 8th International Conference on Power Electronics （ IPEMC 2016-ECCE Asia ） 2. The 43rd Annual Conference of the IEEE Industrial Electronics Society （ IECON2017 ） 3. The 10th Annual IEEE Energy Conversion Congress and Exposition (ECCE 2018) 4. IEEE International Power Electronics and Application Conference and Exposition (PEAC2018) 5. Research, Demonstration and Commercialisation of DC microgrid Technologies (RDC2MT ） 6. 顾永文、马鸿泰等 6 位研究生进行三个月以上的短期访学