摘要
针对集中绕组永磁电机中二倍频(2 f e)径向电磁力导致的空调压缩机振动与噪声问题,提出一种结合定子磁导偏置及转子谐波注入的抑振技术,实现低阶2 f e径向电磁力有效抑制。首先,基于电磁场理论和有限元分析方法,建立了永磁电机的2 f e径向电磁力理论模型,分析了齿槽调制效应以及各阶力波对振动响应产生的影响。其次,提出定子旋转辅助槽创新结构,引入磁导偏置因子,显著降低了3阶2 f e径向电磁力幅值;同时提出了“上升楔形”转子结构,主动引入转子3次谐波,有效抑制了6阶2 f e径向电磁力。最后,通过电机振动测试、压缩机噪声测试以及空调系统噪声实验,分析了定子磁导偏置及转子谐波注入技术对振动噪声的抑制效果,验证了该技术对空调压缩机2 f e振动噪音改善的有效性。
Aiming at the reduction of two-time frequency electromagnetic force in permanent magnet(PM)machines with concentrated windings,the methods of stator permeance bias and rotor harmonic injection were proposed.First,the theoretical model of two-time frequency electromagnetic force in PM machines was proposed and the magnetic field regulation effect and the influence of various order force waves on vibration were analyzed based on the electromagnetic field theory and finite-element analysis(FEA).Moreover,the stator topology was modified by the proposed rotary auxiliary slot and the stator permeance bias factor is introduced,which significantly weakens the amplitude of the 3 rd order force wave and hence;Meanwhile,with PM slot edge shaping proposed,the electromagnetic force harmonic injection is achieved,which is effective for the 6 th order force wave reduction.Finally,the prototype was built and tested via machine vibration,compressor noise,and air-conditioning system noise tests to verify effectiveness of proposed stator permeance bias and rotor harmonic injection topologies on two-time frequency noise improvement in compressors.
作者
邱小华
魏方睿
李宗洋
杨玉磊
李勇
赵世伟
杨向宇
QIU Xiaohua;WEI Fangrui;LI Zongyang;YANG Yulei;LI Yong;ZHAO Shiwei;YANG Xiangyu(School of Power Electric College,South China University of Technology,Guangzhou 510640,China;Guangdong Meizhi Compressor Limited,Foshan 528300,China;School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150001,China)
出处
《电机与控制学报》
北大核心
2025年第1期132-141,155,共11页
Electric Machines and Control
基金
广东省自然科学基金面上项目(2018A0303130221)
中国博士后科学基金面上项目(2024M764186)。
关键词
集中绕组永磁同步电机
径向电磁力
定子磁导偏置
转子谐波注入
振动与噪声
permanent magnet machines with concentrated windings
radial electromagnetic force
stator magnetic permeance phase bias
rotor electromagnetic force harmonic injection
vibration and noise
