Mark Zheleznyak¹, Sergii Kivva², Maksym Sorokin², Oleksander Pylypenko², Alexei Konoplev¹, Michio Aoyama³, Daisuke Tsumune⁴, Yasunori Igarashi¹, Pavlo Dykyi² and , (1)Fukushima University, Fukushima, Japan, (2)Institute of Mathematical Machines and System Problems, Kiev, Ukraine, (3)University of Tsukuba, Tsukuba, Japan, (4)Ctr Res Inst Electic Power Ind, Abiko, Japan