Recent Topics on Power Supply Technology

Tetsuo UZUKA
2015 Quarterly Report of RTRI  
After the Tohoku-Pacific Ocean earthquake, saving energy became a central concern for all Japanese railway operating companies, since Japan lost a major source of electric power supply. It follows therefore that R&D at RTRI should focus on power supply technologies. At the same time, for the first half of the 21 st Century, Japan will face falling birthrates, an aging society, and a shrinking population, resulting in a rapid decrease of the working population. Consequently, maintenance-free
more » ... aintenance-free technology is another key subject for RTRI. This paper describes the recent work on power supply technologies.
doi:10.2219/rtriqr.56.155 fatcat:smxlqenyqfgu7pcwkulx33i5gy