| 摘要 |
PROBLEM TO BE SOLVED: To control output current of a booster connection box so that the output current does not exceed allowable input current of a power conditioner, where the booster connection box comprises a plurality of booster circuits individually corresponding to a plurality of solar cell strings.SOLUTION: When it is determined that a power conditioner 6 is performing input current limitation, in the case that one booster circuit 51 having the highest input voltage of those of a plurality of booster circuits 51, 52, 53 is stopped and booster operation of the other booster circuits 52, 53 are activated; booster operation of the one booster circuit 51 having the highest input voltage is made to start to gradually raise output voltage of a booster connection box until release of the input current limitation, releasing the input current limitation by decreasing output current of the booster connection box without decreasing output.SELECTED DRAWING: Figure 1 |
