紧凑型高压异步电动机转子轴向通风孔优化设计
2021-04-27董立云
董立云



摘 要:为追求小体积等结构优势,紧凑型高压异步电动机温升问题一直存在。文章以某国产6kV紧凑型高压高效三相异步电动机Y2-6305-12电机为例,对转子轴向通风孔优化设计进行研究。文章尝试在不改变Y2-6305-12其他参数条件下,仅通过优化转子轴向通风孔,达到改善该型号电机整体冷却能力、实现电机温升控制的目标。最终结果表明,在一定条件下通过增大转子通风孔内部与空气对流的接触面积,能够达到优化设计目的。
关键词:紧凑型高压异步电动机;Y2-6305-12;转子;控温优化
中图分类号:TU411.7 文献标识码:A 文章编号:1001-5922(2021)08-0140-03
Optimization Design of Rotor Axial Vent of Compact High Voltage asynchronous Motor
Dong Liyun
(Xi an Medical College, Xi an 710016, China)
Abstract:In order to pursue the structural advantages of small size, the temperature rise problem of compact high-voltage asynchronous motor has always existed. In this paper, the optimal design of rotor axial vent is studied by taking a domestic 6kV compact high voltage and high efficiency three-phase asynchronous motor Y2-6305-12 as an example. This paper attempts to improve the overall cooling capacity of this type of motor and achieve the goal of temperature rise control of the motor only by optimizing rotor axial ventilation holes without changing other parameters of Y2-6305-12. The final results show that the optimal design can be achieved by increasing the contact area between rotor vents and air convection under certain conditions.
Key words:compact high-voltage asynchronous motor; Y2-6305-12; rotor; optimization of temperature control
0 引言
緊凑型高压异步电动机结构简单、刚性好,是当前电机市场主流产品。然而,随着电机技术的发展,这种结构紧凑、体积小的电机却一直受限于自身结构特征而无法实现有效的温升控制。紧凑型高压异步电动机温升控制方法、技术等,也始终是电机研发领域重点攻关方向之一[1]。出于通风散热需求,紧凑型高压异步电动机在实际作业过程中,均需要在电机转子轴向开设通风孔,为实现电动机整体冷却能力提升,通风孔的形状、排列规律、数量、直径等均会对电机轴向通风效果产生影响。本文以某国产6kV紧凑型高压异步电动机为例,对该电机轴向通风孔进行优化设计,旨在不改变该电机其他参数条件下,获得电动机温升控制能力的提升,实现电动机较高的材料利用率,提升作业可靠性。
1 Y2紧凑型高压异步电动机
Y2-6305-12紧凑型高压异步电动机(以下简称Y2)为西安电机厂Y2系列6kV高压三相异步电机。……
