梯形Halbach交替极无铁心永磁同步直线电机特性分析与优化设计
TM351; 针对无铁心永磁同步直线电机(PMLSM)存在推力波动问题以及磁极结构对永磁体利用率的影响,从结构方面着手,提出一种梯形Halbach交替极磁极结构的无铁心永磁同步直线电机,对Halbach阵列进行优化设计.首先通过有限元法对比在Halbach交替极、双层Halbach磁极与梯形Halbach交替极3 种磁极结构中PMLSM的电磁性能,分别对气隙磁场谐波成分、空载反电动势、电磁推力以及推力体积比进行计算与对比.其次,采用等效磁化强度法定性分析磁极结构对电机出力性能的影响,并引入Kriging模型,结合多目标优化算法对关键参数进行优化以提高电机平均推力和推力体积比,降低推力波动,得到...
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| Published in | 电机与控制学报 Vol. 28; no. 1; pp. 164 - 176 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
兰州交通大学 自动化与电气工程学院,甘肃 兰州 730070
2024
兰州交通大学 光电技术与智能控制教育部重点实验室,甘肃 兰州 730070%兰州交通大学 自动化与电气工程学院,甘肃 兰州 730070 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1007-449X |
| DOI | 10.15938/j.emc.2024.01.016 |
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| Abstract | TM351; 针对无铁心永磁同步直线电机(PMLSM)存在推力波动问题以及磁极结构对永磁体利用率的影响,从结构方面着手,提出一种梯形Halbach交替极磁极结构的无铁心永磁同步直线电机,对Halbach阵列进行优化设计.首先通过有限元法对比在Halbach交替极、双层Halbach磁极与梯形Halbach交替极3 种磁极结构中PMLSM的电磁性能,分别对气隙磁场谐波成分、空载反电动势、电磁推力以及推力体积比进行计算与对比.其次,采用等效磁化强度法定性分析磁极结构对电机出力性能的影响,并引入Kriging模型,结合多目标优化算法对关键参数进行优化以提高电机平均推力和推力体积比,降低推力波动,得到3 个优化目标的Pareto前沿.最后,通过仿真分析验证设计方法的有效性以及电机性能的改善.结果表明:梯形Halbach交替极磁极结构永磁体利用率更高,具有实用价值;梯形Halbach交替极PMLSM能够有效抑制推力波动并保持在7%左右,适用于高精确度加工设备. |
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| AbstractList | TM351; 针对无铁心永磁同步直线电机(PMLSM)存在推力波动问题以及磁极结构对永磁体利用率的影响,从结构方面着手,提出一种梯形Halbach交替极磁极结构的无铁心永磁同步直线电机,对Halbach阵列进行优化设计.首先通过有限元法对比在Halbach交替极、双层Halbach磁极与梯形Halbach交替极3 种磁极结构中PMLSM的电磁性能,分别对气隙磁场谐波成分、空载反电动势、电磁推力以及推力体积比进行计算与对比.其次,采用等效磁化强度法定性分析磁极结构对电机出力性能的影响,并引入Kriging模型,结合多目标优化算法对关键参数进行优化以提高电机平均推力和推力体积比,降低推力波动,得到3 个优化目标的Pareto前沿.最后,通过仿真分析验证设计方法的有效性以及电机性能的改善.结果表明:梯形Halbach交替极磁极结构永磁体利用率更高,具有实用价值;梯形Halbach交替极PMLSM能够有效抑制推力波动并保持在7%左右,适用于高精确度加工设备. |
| Abstract_FL | Aiming at the problem of thrust ripple in air-core permanent magnet linear synchronous motor(PMLSM)and the influence permanent magnet structure on the utilisation of permanent magnets,a trap-ezoidal Halbach consequent-pole of an air-core PMLSM with an optimised design was proposed for the Halbach array.Firstly,the electromagnetic performance of PMLSM in three pole configurations,Halbach array consequent-pole,double Halbach array and trapezoidal Halbach array consequent-pole,was com-pared by the finite element method.The air gap magnetic field harmonic components,back-EMF,thrust and thrust-to-volume ratio were calculated and compared respectively.Secondly,the equivalent magneti-zation intensity method was used to qualitatively analyze the effect of pole structure on the output perform-ance of the motor.The Kriging model was introduced and combined with a multi-objective optimization al-gorithm to optimize key parameters to improve the average thrust and thrust-to-volume ratio of the motor and reduce thrust ripple,and the Pareto front for the three optimization objectives was obtained.Finally,the results show that consequent-pole is more efficient and saves manufacturing costs.Trapezoidal Hal-bach array consequent-pole PMLSM effectively suppress thrust ripple and which remains at around 7%,and it is suitable for high-precision machining equipment. |
| Author | 张磊 苏乙 赵璇 李燕 缪仲翠 |
| AuthorAffiliation | 兰州交通大学 自动化与电气工程学院,甘肃 兰州 730070;兰州交通大学 光电技术与智能控制教育部重点实验室,甘肃 兰州 730070%兰州交通大学 自动化与电气工程学院,甘肃 兰州 730070 |
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| Author_FL | ZHAO Xuan SU Yi ZHANG Lei MIAO Zhongcui LI Yan |
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| DocumentTitle_FL | Characteristic analysis and optimization design of air-core permanent magnet linear synchronous motor with trapezoidal Halbach array consequent-pole |
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| Keywords | 交替极 永磁同步直线电机 Halbach array 等效磁化强度法 equivalent mag-netizationintensity method Kriging model Kriging模型 多目标优化 multi-objective optimization Halbach阵列 permanent magnet linear synchronous motor consequent-pole |
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| Publisher | 兰州交通大学 自动化与电气工程学院,甘肃 兰州 730070 兰州交通大学 光电技术与智能控制教育部重点实验室,甘肃 兰州 730070%兰州交通大学 自动化与电气工程学院,甘肃 兰州 730070 |
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| Snippet | TM351; 针对无铁心永磁同步直线电机(PMLSM)存在推力波动问题以及磁极结构对永磁体利用率的影响,从结构方面着手,提出一种梯形Halbach交替极磁极结构的无铁心永磁同步直线电... |
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| Title | 梯形Halbach交替极无铁心永磁同步直线电机特性分析与优化设计 |
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