| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a storage battery assembly control system which appropriately performs processing for eliminating a voltage difference when a plurality of storage battery control units are connected in parallel. <P>SOLUTION: In a storage battery assembly control system, five storage battery units 40 are connected in parallel to a charge/discharge main bus 28 of one power converter. Each of the storage battery units 40 includes four storage battery pack rows 44 and each storage battery pack row 44 is connected with the charge/discharge main bus 28 via a switch 56. A sub-controller 30 outputs an ON command to the switch 56 when a voltage difference between the storage battery pack rows 44 becomes a preliminarily set threshold voltage difference or less. A master controller 20 estimates time when a voltage difference between the charge/discharge main bus 28 and the storage battery pack rows 44 becomes a preliminarily set voltage difference or less to cancel On-command nullification processing by a nullification circuit 72, and reduces a charge/discharge current prior to a float time preliminarily set based on the estimated time. <P>COPYRIGHT: (C)2013,JPO&INPIT |
