Title :
Experimental study of a 400 V class DC microgrid for commercial buildings
Author :
Noritake, M. ; Yuasa, K. ; Takeda, T. ; Shimomachi, K. ; Hara, R. ; Kita, H. ; Matsumura, T.
Author_Institution :
NTT Facilities, Inc., Japan
Abstract :
This paper reports the experimental study of a 400 V class DC microgrid for an office building that has been constructed in Obihiro City, Hokkaido, Japan. The objective of this study is to develop a self-sustained distributed energy system by combining distribution energies, batteries, and appliances with DC power. This new DC energy system not only reduces the environment load and improves energy efficiency but also forms a community energy system that can become independent from utility grids and resistant to natural disasters. We have found that compared with AC power supply, the DC system, which uses power generated by solar panels as is, decreases CO2 emission more than 10%.
Keywords :
buildings (structures); distributed power generation; energy conservation; secondary cells; AC power supply; DC energy system; DC microgrid; DC power; DC system; Hokkaido; Japan; Obihiro City; appliances; batteries; commercial buildings; community energy system; distribution energies; energy efficiency; environment load; natural disasters; office building; self-sustained distributed energy system; solar panels; utility grids; voltage 400 V; Batteries; Energy management; Lithium; Meteorology; Power supplies; Rectifiers; System-on-chip; 380 VDC; CO2 emission; DC microgrid;
Conference_Titel :
Power Electronics and ECCE Asia (ICPE-ECCE Asia), 2015 9th International Conference on
Conference_Location :
Seoul
DOI :
10.1109/ICPE.2015.7168011
