定子切边对变频空调压缩机电机效率的影响  

THE IMPACT OF STATOR OUTER SHAPE ON THE EFFICIENCY OF INVERTER AIR CONDITIONING COMPRESSOR MOTORS

作　　者：陈功兵 陈瑛[1] 刘建胜[2] 谢世坤 张兴志 肖承地[2] CHEN Gongbing;CHEN Ying;LIU Jiansheng;XIE Shikun;ZHANG Xingzhi;XIAO Chengdi(School of Information Engineering,Nanchang University,Nanchang,Jiangxi 330031,China;School of Advanced Manufacturing,Nanchang University,Nanchang,Jiangxi 330031,China;Nanchang Highly Electrical Appliances Co.,Ltd.,Nanchang,Jiangxi 330013,China;School of Mechanical and Electrical Engineering,Jinggangshan University,Ji'an,Jiangxi 343009,China;Shanghai Highly Electrical Appliances Co.Ltd.,Pudong,Shanghai 201206,China)

机构地区：[1]南昌大学信息工程学院,江西南昌330031 [2]南昌大学先进制造学院,江西南昌330031 [3]南昌海立电器有限公司,江西南昌330013 [4]井冈山大学机电工程学院,江西吉安343009 [5]上海海立电器有限公司,上海浦东新区201206

出　　处：《井冈山大学学报（自然科学版）》2024年第6期94-101,共8页Journal of Jinggangshan University (Natural Science)

基　　金：国家自然科学基金项目(52006095);江西省重大科技研发专项“揭榜挂帅”项目(20223AAE02012)。

摘　　要：本研究深入探讨了电机定子外径切边设计对变频空调压缩机用永磁同步电机效率的影响。在确保定子外径切边面积与壳体接触面积满足指定要求的前提下,首先提出了两种切边设计方案,通过采用先进的电磁场仿真技术,对两种方案的铁损及电机性能进行了详细的计算与分析。然后,试制了两台实验样机,以验证仿真结果的准确性。仿真分析表明,尽管两种方案在铁损方面的差异不大,但实验测试结果揭示了一个重要发现:切边形状更为均匀的方案能够显著降低铁损,特别是在低转速和高转速的工作条件下,这种优势表现得尤为突出。这一改进主要归功于加工过程中残余应力区域的有效减少,以及轭部磁路的优化,可以减少旋转磁化导致的铁损值,从而显著提升了电机效率。实验研究结果对于优化压缩机电机的性能,特别是在变频空调应用中,具有重要的实际指导价值。This paper investigates the impact of the stator outer diameter chamfer design on the efficiency of PMSMs used in variable frequency air conditioning compressor.With the goal of maintaining specific requirements for the stator chamfer area and contact area with the motor casing,two innovative chamfer design schemes were proposed.Advanced electromagnetic field simulations were conducted to analyze iron loss and overall motor performance for both designs.Two experimental prototypes were then produced to validate the simulation results.Simulation analysis showed that while the difference in iron loss between the two schemes was minimal,experimental testing revealed a key insight:the design with a more uniform chamfer shape notably reduced iron loss,particularly at low and high operating speeds.This improvement is mainly attributed to the effective reduction of residual stress areas during the manufacturing process,as well as the optimization of the yoke magnetic circuit,which can reduce iron losses caused by rotational magnetization,leading to a marked increase in motor efficiency.These findings offer valuable practical guidance for enhancing compressor motor performance,particularly in variable frequency air conditioning systems.

关 键 词：压缩机 永磁同步电机 铁损 效率 外径切边 

分 类 号：TM341[电气工程—电机]