Title :
Charge/discharge characteristics of a backup power supply system using nickel metal hydride batteries
Author :
Kitano, Riichi ; Miyasaka, Akihiro ; Yamashita, Akira ; Shodai, Takahisa
Author_Institution :
NTT Corp., Atsugi
fDate :
Sept. 30 2007-Oct. 4 2007
Abstract :
We developed an outdoor backup power supply system that employs nickel metal hydride batteries, which have high capacity for backup use, and provides a backup time of 15 hours at 20degC under 200-VA output power. We performed a thermal design of the power supply system and achieved a 0-40degC operating temperature range at 200-VA output. Consequently, the system is a promising outdoor power supply.
Keywords :
secondary cells; apparent power 200 VA; backup power supply system; charge-discharge characteristics; nickel metal hydride batteries; temperature 20 degC; thermal design; Batteries; Conductivity; Electrodes; Emergency power supplies; Nickel; Power generation; Power supplies; Power system protection; System testing; Temperature distribution;
Conference_Titel :
Telecommunications Energy Conference, 2007. INTELEC 2007. 29th International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-1627-1
Electronic_ISBN :
978-1-4244-1628-8
DOI :
10.1109/INTLEC.2007.4448853
