| 摘要 |
<p>A reactive power compensation apparatus includes a power system (1) with a given voltage (V), a controller (10 to 17) for controlling the voltage (V) of the power system (1) to a predetermined target voltage (Vref), using a predetermined transfer function (Kp(1+TpS)/TpS), a reactive element (7C), a switch (8) for connecting the reactive element (7C) to the power system (1), a detector (18) for detecting an impedance (Z) of the power system (1) in accordance with a change ( DELTA V) in the voltage (V) of the power system (1), the voltage change ( DELTA V) being defined by a difference between the voltage (V) of the power system (1) obtained when the reactive element (7C) is connected to the power system (1) and the voltage (V) of the power system (1) obtained when the reactive element (7C) is disconnected from the power system (1), and a circuit (19) for changing the transfer function (Kp(1+TpS)/TpS) of the controller (15) in accordance with the impedance (Z) detected by the detector (18). <IMAGE></p> |
