基于正弦硬绕组与后倾风扇的高效高压异步电机系列化  

High efficiency and high voltage series induction motors based on sinusoidal hard windings and backward inclined fans

作　　者：雷一[1] 赵争鸣[1] 汪书苹[1] 郭灯塔[2] 贺玉民[2] 

机构地区：[1]清华大学电机工程与应用电子技术系电力系统与发电设备控制和仿真国家重点实验室,北京100084 [2]湘潭电机股份有限公司,湘潭411101

出　　处：《清华大学学报（自然科学版）》2010年第5期705-708,共4页Journal of Tsinghua University(Science and Technology)

摘　　要：为了在少增加成本的前提下将电机损耗减少到最小,通过对YKK(空-空冷)355—630(中心高,mm)系列高压异步电机损耗构成进行分析,并针对其损耗成分的特点,将定子普通硬绕组改造为星-角接的混合正弦硬绕组,有效地降低杂散损耗和铜耗的同时,改原径向离心式风扇为高效后倾离心式风扇以降低机械损耗。运用该方法对部分型号的YKK355-630系列高压异步电机进行了改进设计。分析和样机试验表明,该设计方案在尽量少地增加成本的情况下,能够有效地降低电机损耗,提高效率。The characteristics of power loss for YKK355-630（air-air cooling,frame size of 355—630 mm） series induction motors were analyzed to mostly decrease the loss in high voltage induction motors without greatly increasing the cost.Copper and stray losses were reduced by star-delta mixed connection hard winding,which replaced the original ordinary hard winding,with centrifugal fans with backward inclined blades of high efficiency designed to replace traditional centrifugal fans with radial blades of low efficiency.,Some models of YKK355-630 series of high-voltage induction motor design have been improved using this method.Analyses and experiments on a specimen motor show that this method is effective in reducing the loss with the additional cost being as low as possible.

关 键 词：高压高效异步电机 星-角接混合正弦硬绕组 高效风扇 

分 类 号：TM343[电气工程—电机]