Review of regenerative energy utilization in traction power supply system in Japan: Applications of energy storage systems in d.c. traction power supply system. - Hayashiya, Hitoshi; Iino, Yuki; Takahashi, Hirotaka; Kawahara, Keiji; Yamanoi, Takashi; Sekiguchi, Takahiro; Sakaguchi, Hideto; Sumiya, Akihiko; Kon, Shinichiro (2017)