*Riku Tamura¹, Yuma Takai², Yukari Aoki¹, Humihiko Gotou¹ (1. Graduate school of Akita University, 2. Akita University)

*Yu Koyama¹ (1. East Nippon Expressway Company Limited)

*Ayane Hinai¹, Sanghun Lee¹ (1. Tohoku-gakuin University)

*Shingo Yoshida Yoshida¹, Shuki Komathu¹, Sanghun Lee¹ (1. TohokuGakuin University)

*Yusuke Sasaki¹, Yuto Asano¹, Hiroshi Onishi¹ (1. Iwate University)

*Yuto Yamano¹, Yuki Yamakawa¹, Kumpei Tsuji¹, Hiroki Mizoe², Tasuku Muroi³ (1. Department of Civil and Environmental Engineering, Tohoku University, 2. Power distribution group, Research and Development Center, Tohoku Electric Power Co., Inc, 3. Division of Power system(power transmission), Tohoku Electric Power Network Co., Inc)

*Takahiro Hirano¹, Isao Saiki¹ (1. Tohoku University )