低齿槽转矩的表面式永磁同步电动机优化设计
|
摘要
为了设计一款9槽6极低齿槽转矩的表面式永磁交流同步电动机,首先应用有限元软件分析了电机的磁钢偏心距、极弧系数和定子铁心槽口宽度等参数对齿槽转矩和反电势的影响,分析表明优化设计以上参数可有效削弱永磁交流同步电动机的齿槽转矩。然后分析出齿槽转矩波形的主要谐波分量,选择合适的磁极错移角进一步削弱齿槽转矩。最后通过对样机进行测试,表明该电机齿槽转矩得到了有效削弱。
In order to design a 9 slots and 6 poles surface-mounted permanence-magnet synchronous motor with low cogging torque, influence on the cogging torque and back electromotive force by such parameters as degree of permanent magnet eccentricity, magnet arc co efficiency and width of stator slot opening were analyzed by means of the finite element method. The analysis showed that the optimization of above-mentioned parameters was able to reduce the cogging torque of the permanence-magnet AC synchronous motor significantly. Then, the main harmonic component was found after analyzing the rectangular wave of cogging torque and right skewing angle was selected to reduce the cogging torque further. Through testing the prototype, it proved that the cogging torque was depressed a great deal.
In order to design a 9 slots and 6 poles surface-mounted permanence-magnet synchronous motor with low cogging torque, influence on the cogging torque and back electromotive force by such parameters as degree of permanent magnet eccentricity, magnet arc co efficiency and width of stator slot opening were analyzed by means of the finite element method. The analysis showed that the optimization of above-mentioned parameters was able to reduce the cogging torque of the permanence-magnet AC synchronous motor significantly. Then, the main harmonic component was found after analyzing the rectangular wave of cogging torque and right skewing angle was selected to reduce the cogging torque further. Through testing the prototype, it proved that the cogging torque was depressed a great deal.
引文
[1]唐任远.现代永磁电机理论与设计[M].机械工业出版社,1997.
[2]Zhu Z Q,Howe David.Influence of Design Parameterson Cogging Torque in Permanent Magnet Machines[J].IEEE TRANSACTIONS ON ENERGY CONVERSION,VOL.15,NO.4,DECEMBER2000:407-412.
[3]Islam R,Husain I,Fardoun A,et al.Permanent Magnet Syn-chronousMotorMagnetDesignswithSkewingforTorqueRip-ple and Cogging Torque Reduction[C].Industry Applications Conference,2007,42nd IAS Annual Meeting:1552-1559.
[4]Lateb R,Takorabet N,Meibody-Tabar F.Effect of MagnetSegmentationontheCoggingTorqueinSurface-mountedPer-manent-magnet Motors[J].IEEE Transaction on Magnetics,2006,42(3):442-445.
[5]杨玉波,王秀和,丁婷婷等.极弧系数组合优化的永磁电机齿槽转矩削弱方法[J].电机工程学报,2007,27(6):7-11.
[6]郑文鹏,杨素香,赵振奎等.采用大小极结构的永磁电动机齿槽转矩削弱方法[J].微电机,2010(5):19-21.
[7]高强,韩力.磁极开槽法抑制永磁电动机齿槽转矩研究[J].微电机,2008(12):1-4.
[8]蔡长铭,汤宁平.低速永磁同步电机的齿槽转矩分析[J].防爆电机,2008,43(1):5-8.
[9]黄越,唐任远,韩雪岩.基于Ansoft的永磁交流伺服电动机转矩波动分析[J].电气技术,2008(4):15-18,22.
[10]陈亚东.交流永磁同步电机转矩脉动抑制的控制策略研究[D].南京理工大学硕士学位论文,2009.
[11]吴茂刚,赵荣祥.矢量控制永磁同步电动机的转矩脉动分析[J].电工技术学报,2007,22(2):9-14.
[12]李开成.一种消弱永磁同步电机齿谐波电势的有效方法[J].微电机,1995,28(3):11-13.
[13]刘超,孙立志,孙力.永磁同步伺服电动机气隙磁场优化设计[J].微电机,2010,43(11):24-27.
[14]应红亮,张舟云,曲家骐等.转子分段斜极在永磁同步电动机中的应用分析[J].微电机,2009(7):10-13,48.
[15]殷进省,江赛标,王文博.基于RMXPRT和MAXWELL的永磁同步电动机优化设计[J].电机技术,2011(4):5-7.
[2]Zhu Z Q,Howe David.Influence of Design Parameterson Cogging Torque in Permanent Magnet Machines[J].IEEE TRANSACTIONS ON ENERGY CONVERSION,VOL.15,NO.4,DECEMBER2000:407-412.
[3]Islam R,Husain I,Fardoun A,et al.Permanent Magnet Syn-chronousMotorMagnetDesignswithSkewingforTorqueRip-ple and Cogging Torque Reduction[C].Industry Applications Conference,2007,42nd IAS Annual Meeting:1552-1559.
[4]Lateb R,Takorabet N,Meibody-Tabar F.Effect of MagnetSegmentationontheCoggingTorqueinSurface-mountedPer-manent-magnet Motors[J].IEEE Transaction on Magnetics,2006,42(3):442-445.
[5]杨玉波,王秀和,丁婷婷等.极弧系数组合优化的永磁电机齿槽转矩削弱方法[J].电机工程学报,2007,27(6):7-11.
[6]郑文鹏,杨素香,赵振奎等.采用大小极结构的永磁电动机齿槽转矩削弱方法[J].微电机,2010(5):19-21.
[7]高强,韩力.磁极开槽法抑制永磁电动机齿槽转矩研究[J].微电机,2008(12):1-4.
[8]蔡长铭,汤宁平.低速永磁同步电机的齿槽转矩分析[J].防爆电机,2008,43(1):5-8.
[9]黄越,唐任远,韩雪岩.基于Ansoft的永磁交流伺服电动机转矩波动分析[J].电气技术,2008(4):15-18,22.
[10]陈亚东.交流永磁同步电机转矩脉动抑制的控制策略研究[D].南京理工大学硕士学位论文,2009.
[11]吴茂刚,赵荣祥.矢量控制永磁同步电动机的转矩脉动分析[J].电工技术学报,2007,22(2):9-14.
[12]李开成.一种消弱永磁同步电机齿谐波电势的有效方法[J].微电机,1995,28(3):11-13.
[13]刘超,孙立志,孙力.永磁同步伺服电动机气隙磁场优化设计[J].微电机,2010,43(11):24-27.
[14]应红亮,张舟云,曲家骐等.转子分段斜极在永磁同步电动机中的应用分析[J].微电机,2009(7):10-13,48.
[15]殷进省,江赛标,王文博.基于RMXPRT和MAXWELL的永磁同步电动机优化设计[J].电机技术,2011(4):5-7.