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Design Method for Reducing AC Resistance of Traction Motor Using High Fill Factor Coil to Improve the Fuel Economy of eBus

机译:用高填充因子线圈降低牵引电动机交流电阻的设计方法,提高富乐燃料经济性

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摘要

To improve electric vehicle (EV) mileage, motors must be designed for higher power density and efficiency. Winding technology with a high fill factor decreases the motor volume by reducing the unnecessary area of the slot. A motor conductor with a large cross-sectional area generates additional losses due to ac resistance, reducing the efficiency of the motor. Traction motors designed under these conditions can adversely affect EV fuel economy. Therefore, a design method is proposed to reduce the ac resistance of a traction motor by applying winding technology with a high fill factor to increase the fuel economy of the EVs. First, the characteristics and manufacturing process of the maximum slot occupation (MSO) coil, which is a winding technology with a high fill factor, are introduced. An ac resistance reduction method for a motor using an MSO coil is then proposed. Additionally, a motor designed using the proposed method is presented, and its electrical performance is compared with that of an initial motor. Next, the effect of the fuel economy improvement of the presently designed traction motor is verified through a vehicle simulation, and the validity of this article is experimentally confirmed using this motor.
机译:为了改善电动车(EV)里程,必须设计电动机的功率密度和效率。具有高填充因子的绕组技术通过减少槽的不必要区域来降低电机体积。具有大横截面积的电动机导体由于交流电阻而产生额外的损耗,降低了电动机的效率。在这些条件下设计的牵引电机可能会对EV燃油经济性产生不利影响。因此,提出了一种设计方法,以通过使用高填充因子应用绕组技术来减少牵引电动机的交流电阻,以增加EVS的燃料经济性。首先,介绍了最大槽占用(MSO)线圈的特性和制造过程,其是具有高填充因子的绕组技术。然后提出了使用MSO线圈的电动机的AC电阻降低方​​法。另外,提出了使用该方法设计的电动机,并将其电性能与初始电动机的电动机进行了比较。接下来,通过车辆模拟验证目前设计的牵引电动机的燃料经济性改善的影响,使用该电机进行实验证实了本文的有效性。

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