控制电机的功率因数实质上是对电机转差频率进行控制，使效率保持在最优值。

We find that the principle of the strategy is that it makes the efficiency optimal essentially by controlling the slip frequency.

youdao

控制电机的功率因数实质上是对电机转差频率进行控制，使效率保持在最优值。

We find that the principle of the strategy is that it makes the efficiency optimal essentially by controlling the slip frequency.

youdao