| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve such problems that a secondary battery is prone to overcharge or overdischarge when the power supply quality of a power system is maintained and controlled utilizing the power stored in the secondary battery in a power storage facility consisting of the secondary battery and a power converter, and that sufficient system stabilization is not ensured when the secondary battery is not charged to a proper level. <P>SOLUTION: In the system stabilization apparatus comprising a power storage facility consisting of a secondary battery and a power converter, overcharge or overdischarge of the secondary battery is prevented by employing the values obtained by time delay calculation of the system frequency and system voltage as the target values of frequency and voltage. In addition, the secondary battery is maintained at a proper charging level by correcting the target value of effective power based on the battery SOC. <P>COPYRIGHT: (C)2012,JPO&INPIT |
