CHARGING METHOD FOR CAPACITOR BANK, CHARGING DEVICE USING THE SAME, DISCHARGING METHOD FOR CAPACITOR BANK, AND DISCHARGING DEVICE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a charging method for capacitor bank, capable of charging a capacitor bank at a low cost.;SOLUTION: In the charging method for capacitor bank, a capacitor bank 10 is charged to a reserved charging voltage V_PC lower than a rated voltage V_A of the capacitor bank 10. After a terminal-to-terminal voltage of the capacitor bank 10 is maintained at the reserved charging voltage V_PC for a predetermined time T_W, the capacitor bank 10 is charged to the rated voltage V_A. Thus, an overvoltage is prevented from being applied to the capacitor without need for addition of a voltage detection circuit or the like to each capacitor.;COPYRIGHT: (C)2014,JPO&INPIT