PDF Download Schedule 0 10:45 AM - 11:25 AM [2D21] A NOVEL HYBRID SWING SYSTEM AND ENERGY REGENERATION TIME CONTROL *Ying Xiao Yu1, Hyung Gyu Park1, Yang Hun Im1, Bo Moon Seo1, Kyoung Kwan Ahn1 (1. University of Ulsan) Keywords:Energy regeneration, Energy regeneration time, System performance