控制器通过监测电机定子电流的大小，将其起动电流控制在允许的范围内。

Through the detection of the stator current, the control can confine the starting current within the allowable range.

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对于电动机起动需要控制起动电流和转矩震动的问题，采用双闭环的控制方案，即电流闭环控制和功率因数角闭环控制。

As for the problem the high current and the vibration of the torque, the double closed loops which include the current and power factor Angle are worked out.

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实际运行结果表明，该控制装置起动电流小，可靠性高，实际运行情况良好。

The operation result on the spot shows that the control device works with small initial current good reliability and operating condition.

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