| 摘要 |
<P>PROBLEM TO BE SOLVED: To enhance lifetime of a battery by prolonging discharge time of the battery in a system linkage system using batteries for power transmission lines of a wind power generator and a power company. <P>SOLUTION: The battery 15 is connected between a rectifier 12 and a system linkage inverter 13, and the battery 15 is charged through a diode D3 and a charge/discharge control circuit 20. When the charging of the battery 15 is completed, the battery 15 is discharged through a current control circuit 30 and a diode D1. At this time, the current control circuit 30 is controlled by the charge/discharge control circuit 20 and discharges a discharge current having a magnitude set by the charge/discharge circuit 20. When the discharge is completed, the current control circuit 30 is closed and starts to charge the battery 15. The discharge current of the battery 15 is controlled by the current control circuit 30, thus prolonging the discharge time. <P>COPYRIGHT: (C)2003,JPO |
