中文摘要：

针对高压大功率异步起动永磁同步电机的起动问题，基于一台3kV，400kW实心转子异步起动永磁同步电动机，利用有限元方法建立电机的二维仿真模型，对比分析了叠片转子和实心转子结构电机的起动性能，仿真结果显示这种电机在起动电流允许情况下，起动转矩明显大于叠片转子结构电机。通过改变电机的相关结构参数包括电机的气隙长度、极间导条数量、导条尺寸等分析其对电机堵转性能的影响规律，改变电机气隙的不均匀程度，分析其对电机起动过程中的稳态损耗的影响规律。

英文摘要：

Due to the starting problems of high voltage high power line-start permanent magnet motor （LSPMSM）. The performance of solid-steel and silicon rotor was analyzed. A 3 kV, 400 kW solid-steel rotor was designed and optimized. Using finite element method to establish two-dimensional simulation model, the simulation result shows that under the condition of starting current allowed, the solid-steel motor has larger starting torque than silicon rotor motor. The effect laws of the motor stall performance were drawn, by changing the relevant structural parameters such as the length of air gap, the quantity of copper-bars, the copper-bar size etc. In addition, the steady loss of motor working at different uneven air gap was compared.