基于3D-FEM的低速永磁同步电机起动过程分析  

The Starting Process of Low Speed Permanent Magnet Motor Based on 3D-FEM Calculation

作　　者：李军[1] 肖尚辉[1] 陈劲松[1] 吴建芳[2] 

机构地区：[1]宜宾学院物理与电子工程学院,四川宜宾644007 [2]宜宾学院图书馆,四川宜宾644007

出　　处：《宜宾学院学报》2013年第12期50-53,共4页Journal of Yibin University

基　　金：国家科技支撑计划项目(2008BAF34B01);宜宾学院博士启动基金(2012B15)

摘　　要：减速式低速永磁同步电机(Ls-A-Pmsm)的特殊结构导致其与普通永磁同步电机起动过程的2D-FEM计算不同.以3D-FEM磁场及转矩计算得出的转矩随转速或时间变化特性曲线为基础,再以它作为其转矩仿真的依据,采用简化的时步有限元方法,从而实现对实际起动过程的仿真模拟分析.重点研究的过程包括:最大转矩时磁场转过的电角度以及反向转动的临界时刻;完成自起动并牵入同步能够最终起动的时刻;采用简化的时步有限元法分析该低速电机的起动过程;负载转动惯量的大小对起动过程和时间的影响.The special characteristics of L0w-speed Axial Permanent Magnet Synchronous Motor （Ls-A-Pmsm） make it difficult to curately calculate torque with the 2D-FEM to common PMS motor. Based on the characteristic curve of torque-speed or time cal- culated by 3D-FEM, then using the simplified time-stepping FEM, the actual starting process simulation was achieved. These processes include ： The electrical angle turned by magnetic field and critical moment of the reverse rotation when maximum torque time ; the completion moment of self-starting and of finally pulling into synchronization ; the application of simplified time-stepping FEM to analyze the starting process of this motor; the affections of load inertia to the starting process and time.

关 键 词：低速同步电机 起动过程 仿真 简化时步有限元法 

分 类 号：TM356[电气工程—电机]