铁氧体永磁辅助同步磁阻电机抗退磁设计优化  

Design and Optimization of Anti-demagnetization of Ferrite Permanent Magnet Assisted Synchronous Reluctance Motor

作　　者：史进飞 胡余生 陈彬 肖勇 李霞 SHI Jin-fei;HU Yu-sheng;CHEN Bin;XIAO Yong;LI Xia(GREE Electric Appliances,INC.of Zhuhai,Zhuhai 519070,China;State Key Laboratory of Air-Conditioning Equipment and System Energy Conservation,Zhuhai 519070,China;Guangdong Key Laboratory of Refrigeration Equipment and Energy Conservation Technology,Zhuhai 519070,China)

机构地区：[1]珠海格力电器股份有限公司,珠海519070 [2]空调设备及系统运行节能国家重点实验室,珠海519070 [3]广东省制冷设备节能环保技术企业重点实验室,珠海519070

出　　处：《微特电机》2021年第5期21-24,共4页Small & Special Electrical Machines

摘　　要：简要介绍了铁氧体永磁体退磁原理特性,通过有限元仿真分析了一台36槽6极铁氧体永磁辅助同步磁阻电机永磁体退磁分布特性,根据其退磁特性,提出了不等厚永磁体、永磁体内移、永磁体槽切边等改进结构,并仿真验证其退磁改善效果,对比了各改进结构对永磁体用量、电机效率、退磁率的影响,确定最终方案。仿真结果表明,通过转子结构的优化,可以有效改善铁氧体永磁辅助同步磁阻电机低温不可逆退磁,具有更广泛的应用场合及应用前景。The principle and characteristics of demagnetization of ferrite permanent magnet were briefly introduced.The demagnetization distribution characteristics of a 36 slot 6 pole ferrite permanent magnet assisted synchronous reluctance motor(PMSynRM)was analyzed by using a finite element method.According to its demagnetization characteristics,the improved structures such as unequal thickness permanent magnet,permanent magnet move toward the center of rotor,and permanent magnet slot trimming was proposed,and its improvement effect of demagnetization was verified by finite element simulation.The influence of each improved structure on the amount of permanent magnet,efficiency and demagnetization rate was compared,and the final scheme was determined.The simulation results show that the optimization of rotor structure can effectively improve the irreversible demagnetization of ferrite PMSynRM,and make it have more extensive applications and application prospects.

关 键 词：永磁辅助同步磁阻电机 铁氧体永磁体 不可逆退磁 退磁电流 

分 类 号：TM351[电气工程—电机] TM352