感应电动机调压节能的理论分析

Theoretical study on energy saving by varying the stator voltage for induction motors

详细分析了感应电动机在调压情况下的工作原理 ,得到了功率因数与转差率以及转差率与电机定子电压的关系 ,进而得到功率因数与定子电压的函数关系 ,在此基础上建立了调压时感应电动机节能的数学模型。通过算例在理论上证明了调压节能的可行性 。

The operation principle is analyzed when varying the stator voltage of induction motors in this paper. By analyzing the relationship of power factor, slip ratio and the stator voltage, the function between power factor and the stator voltage is derived. The mathematical model on energy saving of induction motors is proposed. The result of an example shows the applicability of energy saving, which provides the theoretical basis for control schemes.