| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of most effective operation for a reactive power compensator which is combined with a load, where the actions at start and at operation differ greatly, such as in a wind-turbin generator. SOLUTION: A current sensor 5 is connected to a reactive power compensator 4, and the reactive power compensator 4 is operated only when the load current flowing toward a load 3 exceeds the threshold, and after the load 3 starts power generation, the reactive power compensator 4 is stopped. what is more, it is desirable to decide the set value according to the detected system voltage, when starting the reactive power compensator 4. Then, at forward sending when the current flows toward the load 3, the reactive power compensator 4 is made to perform power factor 1 control, and at reverse sending when the current is sent from the load 3 to a substation 1, it is made to perform voltage constant control. |
