摘要
永磁同步电机具有功率密度大、运行安全可靠以及维护简单等优点而得到广泛应用。在深入分析永磁同步电机三维磁场分布特性基础上,以12槽永磁同步电机为例,用有限元分析方法建立了电机模型。采用棱边单元法对电机进行了三维电磁场数值计算,研究了不同单元形状对电磁场计算结果的影响,并进行了仿真验证,结果证明在可靠性、计算速度和气隙磁密方面,采用棱边单元法进行有限元磁场计算较现有方法有着较大提高。最后基于设计的1 kW永磁电机搭建了实验平台,对其短路过程进行了研究,得到了永磁同步电机的最大短路电流,实验结果验证了所采用仿真方法的正确性,对设计、研究永磁电机有一定参考意义。
Permanent magnet synchronous machine （PMSM） is widely used in many applications with the advantages of high power density,safety and reliable operation and low maintenance consume.Based on the analysis of three-dimensional magnetic field distribution characteristics of PMSM,finite element analysis method was adopted to establish a 12 slots PMSM model.The edge element method was used to calculate the 3D electromagnetic field and analyzed the influence to the electromagnetic field calculation results by the different units shape.The simulation results prove the reliability,speed and flux density computing by the proposed method greatly improved over the existing methods.Finally,an experimental platform based on one 1 kW PMSM was built to investigate the short circuit process of PMSM.Experimental results verify the correctness of the proposed method,which has a certain reference value to PMSM design and research.
出处
《微特电机》
北大核心
2014年第6期1-3,7,共4页
Small & Special Electrical Machines
基金
河南省科技厅攻关重点项目(112102310556)
河南省教育厅科学技术研究重点项目(13B470936)
关键词
永磁同步电机
有限元
反电动势
三维磁场计算
permanent magnet synchronous machine
finite element method
back-electromotive force
3D magnetic field distribution calculations
作者简介
郭新军（1968-），男，副教授，研究方向为电机与电器、通信与信息系统。
