利用负载磁场法求解永磁同步电动机的交直轴电枢反应电抗  

Determination of q-axis and d-axis Armature Reaction Reactance of Permanent Magnet Synchronous Motor Using Loading Magnetic Fields

作　　者：杨智[1] 金焘[1] 张超[1] 陈琳[1] 

机构地区：[1]中国船舶重工集团公司第704研究所,上海200031

出　　处：《船舶工程》2015年第2期54-57,共4页Ship Engineering

摘　　要：永磁同步电动机电抗参数的准确计算对于电机性能分析与电机优化设计是至关重要的。介绍了一种基于电机任意运行工况下,利用有限元法求解永磁同步电动机的交直轴电枢反应电抗Xaq、Xad以及永磁体空载感应电压E0的方法。基于有限元法计算非线性负载磁场得出内感应电压Eδ和内功率角δi,进而推导得出Xad、Xaq和E0。并将此方法应用于求解一台额定功率630k W的船用表贴式永磁同步电动机的交直轴电枢反应电抗。The precise knowledge of reactance parameters is of critical importance for the correct performance prediction and design optimization of permanent magnet synchronous motors （PMSM）. In this paper, a method is proposed for numerical calculation of the q-axis and d-axis reaction reactances Xad, Xaq and excitation voltage due to magnets Eo related to any arbitrary operational case. Based on the evaluation of internal voltage Eδ and δi from nonlinear load magnetic fields by FEM, the parameters Xad, Xaq and Eo are obtained. The proposed procedure has been applied to analyze a 630kW PMSM for ship and determine its armature reaction reactance.

关 键 词：永磁同步电动机 负载磁场 电枢反应电抗 有限元法 

分 类 号：U665.11[交通运输工程—船舶及航道工程]