To prevent an engine-driven generator from being over-loaded, which charges a plurality of batteries and supplies power to a load.
There are provided a plurality of batteries 1 and 2 (B1 and Bm) connected in parallel, loads 15 and 17, an engine-driven generator 12 (G) which charges the batteries and supplies power to the loads 15 and 17, and a charge control circuit/battery state monitor 31. With the use of the charge control circuit/battery state monitor 31, the output of he engine-driven generator is controlled to be within a nominal output while a battery voltage is within a prescribed fluctuation range so that an engine 11 is not over-loaded, and a voltage or current of the generator 12 (G) is limited while the battery voltage is outside the prescribed fluctuation range so that the generator 12 (G) is not subjected to over current/over voltage.
COPYRIGHT: (C)2005,JPO&NCIPI
Masahide Koshiba
Yuasa Tetsuji
Kawasaki Shipbuilding Co., Ltd.
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Battery Pulse Charging System,IBM Technical Disclosure Bulletin,米国,International Business Machines Corp.,1994年 8月,Vol.37 No.8,p.371-372
Kiyoshi Matsuzaki