考虑磁储能变化的PMSM饱和谐波模型被引量：1

PMSM mathematical model considering magnetic saturation, field harmonics and magnetic energy storage changes

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摘要 PMSM在重载条件下存在磁饱和效应,磁场谐波畸变严重,同时齿槽位置对应磁储能的改变影响了电磁转矩谐波分量,使传统的PMSM饱和谐波模型失真严重。根据电磁转换机理推导完善了考虑磁储能变化的饱和谐波计算公式,利用有限元法提取不同交直轴电流条件下电机的饱和电感、永磁体等效激磁电流及磁场谐波参数。在Matlab仿真平台上建立了电机模型并与有限元分析结果进行对比。结果表明,与传统饱和谐波模型相比,该模型大幅提高了电磁转矩谐波的模拟程度,为PMSM重载谐波特性研究提供了更加准确的模型依据。 Magnetic saturation,field harmonics distortion and changes of magnetic energy storage will cause conventional model distort in heavy load condition of PMSM.The magnetic energy storage change effect is considered and reformed formula of counter electromotive force and torque of PMSM is introduced.A given motor is electromagnetically analyzed using finite element software Ansys EM and cross saturation inductance curves,demagnetization curves and harmonic parameter are extracted.A nonlinear d-q axis motor model is established and tested on Matlab simulation platform based on extracted parameters.Result shows that the reformed model can reflect the electromagnetic torque harmonics of the PMSM much more accurately than the conventional one.Therefore a more accurate PMSM model basis is designed and tested for characteristics of PMSM drive research in heavy load.

作者曹博书宋剑陈斌 CAO Boshu;SONG Jian;CHEN Bin(College of Flight Technology,CAUC,Tianjin 300300,China;Aircraft Maintenance Engineering Department,China Southern Airlines Co.Ltd.,Guangzhou 510470,China)

机构地区中国民航大学飞行技术学院中国南方航空股份有限公司机务工程部

出处《中国民航大学学报》 CAS 2018年第3期52-57,共6页 Journal of Civil Aviation University of China

基金中央高校基本科研业务费专项(3122014X003)

关键词永磁同步电机磁场谐波磁饱和磁储能转矩谐波 PMSM field harmonics magnetic saturation magnetic energy storage electromagnetic torque harmonics

分类号 V231.96 [航空宇航科学与技术—航空宇航推进理论与工程] N945.12 [自然科学总论—系统科学]

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