1. Central Research Institute of Electric Power Industry (CRIEPI), 2-6-1 Nagasaka, Yokosuka, Kanagawa 240-0196, Japan
2. Power Engineering R&D Center, Kansai Electric Power Co., Inc., 3-11-20 Nakoji, Amagasaki, Hyogo 661-0974, Japan
3. National Institute of Advanced Industrial Science and Technology, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan