基于Halbach阵列的盘式无铁心永磁同步电机磁钢优化
|
摘要
对基于90°Halbach阵列的盘式无铁心永磁同步电机的磁钢进行形状优化,以改善电机的气隙磁密波形。分析了电机的结构和空载电磁场,在此基础上采用改变永磁体边缘形状方法将90°Halbach型永磁体阵列优化为内圆型、外圆型和削角型3种,并利用有限元法分析不同永磁体形状对气隙磁密波形的正弦性和基波幅值的影响。分析表明优化后的90°Halbach型盘式无铁心永磁同步电机能够获得和45°Halbach型电机基本相同的气隙磁密,并且在永磁体充磁、加工和安装定位等方面要优于45°Halbach型电机。3种永磁体形状优化中内圆型永磁体的优化效果最佳。
The paper investigated the magnet optimization of a disc coreless permanent magnet synchronous motor( PMSM) which was based on 90° Halbach array to improve its waveform of air-gap flux density. The structural characteristics and the electromagnetic field of the motor were studied firstly. The shape of the magnet was optimized by considering different magnet shapes including rounding out shape,rounded inside shape,and rectangular chamfered shape. The effects of different magnet shapes on the waveform of flux density were analyzed with FEA,and the optimal parameters of the magnet were obtained. It is shown disc coreless PMSM with optimized 90° Halbach array can get sinusoidal air-gap flux density as same as the motor with 45° Halbach array. It has advantages in permanent magnet magnetization,processing and location.Rounding out shape is the best one of three shape optimization.
The paper investigated the magnet optimization of a disc coreless permanent magnet synchronous motor( PMSM) which was based on 90° Halbach array to improve its waveform of air-gap flux density. The structural characteristics and the electromagnetic field of the motor were studied firstly. The shape of the magnet was optimized by considering different magnet shapes including rounding out shape,rounded inside shape,and rectangular chamfered shape. The effects of different magnet shapes on the waveform of flux density were analyzed with FEA,and the optimal parameters of the magnet were obtained. It is shown disc coreless PMSM with optimized 90° Halbach array can get sinusoidal air-gap flux density as same as the motor with 45° Halbach array. It has advantages in permanent magnet magnetization,processing and location.Rounding out shape is the best one of three shape optimization.
引文
[1]Nair S S,Nalakath S,Dhinagar S J.Design and Analysis of Axial Flux Permanent Magnet BLDC Motor for Automotive Applications[C].IEEE International Electric Machines&Drives Conference.Harita,India:IEEE,2011:1615-1618.
[2]Yunkai Huang,Baoyun Ge,Jianning Dong,et al.3-D Analytical Modeling of No-load Magnetic Field of Ironless Axial Flux Permanent Magnet Machine[J].IEEE Transactions on Magnetics,2012,48(11):2929-2932.
[3]辜承林.转子无铁心式直流永磁盘式电机的磁场和解析分析与优化设计[J].中国电机工程学报,1996,16(2):125-129.
[4]范坚坚,吴建华.计及齿槽极间隔断Halbach型磁钢的PMSM气隙磁场解析分析[J].中国电机工程学报,2010,20(12):98-105.
[5]王晓远,闫杰,刘艳,等.基于Halbach阵列盘式无铁心电机磁钢设计[J].微电机,2005,38(1):37-40.
[6]J F Gieras,I A Gieras.Performance Analysis of a Coreless Permanent Magnet Brushless Motor[C].Industry Applications Conference,37th IAS Annual Meeting,2002:2477-2482.
[7]Bumby J R,Martin R.Axial-flux Permanent-magnet Air-cored Generator for Small Scale Wind Turbines[J].IEE Proceedings—Electrical Power Application,2005,152(5):1065-1075.
[8]王晓远.基于Halbach阵列盘式无铁心永磁同步电机的研究[D].沈阳:沈阳工业大学,2006.
[9]张鲁,寇宝泉,赵斌超,等.新型Halbach次级结构永磁同步直线电机[J].电工技术学报,2013,28(7):39-45.
[10]M Chabchoub,I Ben Salah,et al.PMSM Cogging Torque Reduction:Comparison Between Different Shapes of Magnet[C].2012First International Conference on Renewable Energies and Vehicular Technology,2012:206-211.
[11]王辉,武峻峰,李胤,等.基于轴向磁通电动机的反作用飞轮系统设计[J].机械工程学报,2013,49(17):158-162.
[12]王晓远,唐任远,杜静娟,等.基于Halbach阵列盘式无铁心永磁同步电机优化设计-楔形气隙结构电机[J].电工技术学报,2007,22(3):2-5.
[13]陈金涛,辜承林.轴向磁场无铁心无刷永磁盘式电机的设计[J].微电机,2002,35(5):14-16.
[14]Seok-Myeong Jang,Min-Mo Koo,Yu-Seop Park.Characteristic Analysis on the Influence of Misaligned Rotor Position of Double-sided Axial Flux Permanent Magnet Machine and Experimental Verification[J].IEEE Transactions on Magnetics,2012,48(11):2941-2944.
[15]P Viric,P Pisek.Analytical Analysis of Magnetic Field and Back Electromotive Force Calculation of an Axial-flux Permanent Magnet Synchronous Generator with Coreless Stator[J].IEEE Transactions on Magnetics,2008,44(11):4333-4336.
[16]So-Young Sung,Jae-Hoon Jeong,Yu-Seop Park,et al.Improved Analytical Modeling of Axial Flux Machine with a Double-sided Permanent Magnet Rotor and Slotless Stator Based on an Analytical Method[J].IEEE Transactions on Magnetics,2012,48(11):2945-2948.
[17]J Mallinson.One-sided Fluxes—A Magnetic Curiosity[J].IEEE Transactions on Magnetics,1973(6):678-682.
[18]陈尔奎,赵龙涛.盘式永磁同步电动机的仿真研究[J].微电机,2013,46(10):20-24.
[19]王兴华,励庆孚,王曙鸿.永磁无刷直流电机空载气隙磁场和绕组反电势的解析计算[J].中国电机工程学报,2003,23(3):126-130.
[20]李延升,窦满峰.Halbach型磁钢的永磁电机气隙磁场解析计算[J].微电机,2013,46(3):6-9.
[2]Yunkai Huang,Baoyun Ge,Jianning Dong,et al.3-D Analytical Modeling of No-load Magnetic Field of Ironless Axial Flux Permanent Magnet Machine[J].IEEE Transactions on Magnetics,2012,48(11):2929-2932.
[3]辜承林.转子无铁心式直流永磁盘式电机的磁场和解析分析与优化设计[J].中国电机工程学报,1996,16(2):125-129.
[4]范坚坚,吴建华.计及齿槽极间隔断Halbach型磁钢的PMSM气隙磁场解析分析[J].中国电机工程学报,2010,20(12):98-105.
[5]王晓远,闫杰,刘艳,等.基于Halbach阵列盘式无铁心电机磁钢设计[J].微电机,2005,38(1):37-40.
[6]J F Gieras,I A Gieras.Performance Analysis of a Coreless Permanent Magnet Brushless Motor[C].Industry Applications Conference,37th IAS Annual Meeting,2002:2477-2482.
[7]Bumby J R,Martin R.Axial-flux Permanent-magnet Air-cored Generator for Small Scale Wind Turbines[J].IEE Proceedings—Electrical Power Application,2005,152(5):1065-1075.
[8]王晓远.基于Halbach阵列盘式无铁心永磁同步电机的研究[D].沈阳:沈阳工业大学,2006.
[9]张鲁,寇宝泉,赵斌超,等.新型Halbach次级结构永磁同步直线电机[J].电工技术学报,2013,28(7):39-45.
[10]M Chabchoub,I Ben Salah,et al.PMSM Cogging Torque Reduction:Comparison Between Different Shapes of Magnet[C].2012First International Conference on Renewable Energies and Vehicular Technology,2012:206-211.
[11]王辉,武峻峰,李胤,等.基于轴向磁通电动机的反作用飞轮系统设计[J].机械工程学报,2013,49(17):158-162.
[12]王晓远,唐任远,杜静娟,等.基于Halbach阵列盘式无铁心永磁同步电机优化设计-楔形气隙结构电机[J].电工技术学报,2007,22(3):2-5.
[13]陈金涛,辜承林.轴向磁场无铁心无刷永磁盘式电机的设计[J].微电机,2002,35(5):14-16.
[14]Seok-Myeong Jang,Min-Mo Koo,Yu-Seop Park.Characteristic Analysis on the Influence of Misaligned Rotor Position of Double-sided Axial Flux Permanent Magnet Machine and Experimental Verification[J].IEEE Transactions on Magnetics,2012,48(11):2941-2944.
[15]P Viric,P Pisek.Analytical Analysis of Magnetic Field and Back Electromotive Force Calculation of an Axial-flux Permanent Magnet Synchronous Generator with Coreless Stator[J].IEEE Transactions on Magnetics,2008,44(11):4333-4336.
[16]So-Young Sung,Jae-Hoon Jeong,Yu-Seop Park,et al.Improved Analytical Modeling of Axial Flux Machine with a Double-sided Permanent Magnet Rotor and Slotless Stator Based on an Analytical Method[J].IEEE Transactions on Magnetics,2012,48(11):2945-2948.
[17]J Mallinson.One-sided Fluxes—A Magnetic Curiosity[J].IEEE Transactions on Magnetics,1973(6):678-682.
[18]陈尔奎,赵龙涛.盘式永磁同步电动机的仿真研究[J].微电机,2013,46(10):20-24.
[19]王兴华,励庆孚,王曙鸿.永磁无刷直流电机空载气隙磁场和绕组反电势的解析计算[J].中国电机工程学报,2003,23(3):126-130.
[20]李延升,窦满峰.Halbach型磁钢的永磁电机气隙磁场解析计算[J].微电机,2013,46(3):6-9.