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Variable Impedance Induction Motor - Measurement Results of a Variable Impedance Induction Motor Prototype

机译:可变阻抗感应电动机 - 可变阻抗感应电机原型的测量结果

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In this paper, a new concept of variable impedance induction (Z) motor (VZIM) is introduced to combine high starting torque and high efficiency at nominal operation. The rotor is a sectionalized cage with different bar shapes for each sub-cage section. At the starting of the motor, sub-cages with high resistance are put inside the stator bore to increase the starting torque and reduce the starting current. By increasing the rotational speed, a centrifugal rotor shifter mechanism moves the rotor cage in the axial direction and brings the other sections of the rotor cage with low resistance inside the stator bore to reduce the rotor losses at the rated speed. Hence the efficiency of the motor is increased at the nominal operating point. A 5.5 kW, 4 pole prototype motor has been built and tested at our institute and the measurement results are presented in this paper.
机译:本文介绍了一种可变阻抗感应(Z)电机(VZIM)的新概念,以将高启动扭矩和高效率在标称操作中结合。转子是具有不同条形的剖分笼,每个子笼子部分。在电动机的起始时,具有高电阻的子笼放在定子孔内,以增加起始扭矩并减小起动电流。通过提高旋转速度,离心转子换体机构在轴向方向上移动转子笼,并将转子笼的另一个部分带入定子孔内的低电阻,以降低额定速度的转子损耗。因此,电动机的效率在标称操作点处增加。在我们的研究所建立和测试了5.5千瓦,4极原型电机,并在本文中提出了测量结果。

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