| 摘要 |
A control unit of a system stabilizing device uses a fluctuation detecting block 200 for determining current commands from a system current. A fluctuation detecting unit 300 determines, from an active component Isd of the system current, a common current command Irefd0 which is a fluctuation component of the active component Isd. A first current command creating unit 400 receives as an input the current command Irefd0, and outputs a current command Irefd1 whose signal width is as small as T4 and which instantaneously rises and then gradually decreases. A second current command creating unit 500 receives as an input the current command Irefd0, and outputs a current command Irefd2 which gradually increases for a time T4 and then gradually decreases for a time (T3-T4). The system stabilizing device having short charging and discharging times is controlled by the current command Irefd1, while the system stabilizing device having long charging and discharging times is controlled by the current command Irefd2, whereby system stabilizing controls can be exercised without interferences. In this manner, even if system stabilizing devices having different charging and discharging characteristics are provided, system stabilizing controls can be effected without interferences. |
