短定子超导直线感应电机性能研究

Research on Performance of Short Stator Superconducting Linear Induction Motor

建立了短定子有、无铁心超导直线感应电机三维有限元分析模型,分析了额定工况下有、无铁心超导直线感应电机的涡流和磁场以及各分量的分布情况。研究了无铁心超导直线感应电机在不同频率下的推力变化规律,并与相同功率等级的铜线圈直线感应电机的牵引曲线进行了对比。对比了额定工况下有、无铁心超导直线感应电机的推力、法向力以及性能参数,可知无铁心超导直线感应电机的质量更轻,单位质量推力更大,但功率因数相对较低。

The three-dimensional finite element analysis model of the short stator with and without core superconducting linear induction motor was established,and the eddy current and magnetic field and the distribution of each component were analyzed under the rated condition.The thrust variation rule of non-core superconducting linear induction motor at different frequencies was studied and compared with the traction curve of copper coil linear induction motor of the same power level.The thrust,normal force and performance parameters of the linear induction motor with and without iron core under rated working conditions were compared.It can be seen that the linear induction motor without iron core has a lighter weight and a larger thrust per unit weight,but a relatively low power factor.