A: The usual control objectives are: power factor, reactive power, reactive current, voltage. According to the specific situation, the main purpose of mining the distribution capacity is, so the voltage should not be the control target. The power factor is the detection amount. The disadvantage is that the switching oscillation is easy to occur at light load, and the compensation is not sufficient when the load is heavy. When the reactive power is used as the detection amount, the detection amount and the control target amount are the same, and the detection accuracy is low. Therefore, the reactive current should be used as the detection amount, and the reactive power is the control target.
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