| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electric storage device capable of effectively using natural energy without waste and achieving excellent various types of electrical characteristics. Ž<P>SOLUTION: The electric storage device includes: a power generator 1 using natural energy; a plurality of storage unit groups 3-1, 3-2 to 3-n individually charged by the power generator 1; a load 6 to which a discharge output from the respective storage unit groups is applied; and charging/discharging detection devices 4-1, 4-2 to 4-n which detect charging/discharging states of the respective storage unit groups and outputs the charging/discharging states to a centralized monitoring controller 7. The centralized monitoring controller 7 includes: an information management part 7a to which an output of charging/discharging detection for the respective storage units is applied; and a switch control part 7b which receives the output of the information management part 7a and sends an output for controlling respective switching operations to the charging and discharge sides of switches SW1, SW2 to SWn which make connections to the respective storage unit groups. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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