本项目以电磁发射用动初级双边六相直线感应电机为研究对象，重点针对高加速短冲程无匀速工况，解决动态边端效应带来的推力下降、推力脉动等问题，提高系统的控制精度。综合考虑电机的动静态参数，分析动态边端效应对电机参数的影响规律，研究电机的参数时变特性，考虑电机的时变不对称性及绕组间耦合，建立考虑动态边端效应的六相直线感应电机不对称时变模型；基于模型优化矢量控制策略，实现修正系数在线更新，通过修正滑差频率及转矩电流抑制推力下降，提高控制精度；结合动态边端效应影响下气隙磁场畸变特性及系统安全边界，优化内环控制，提出最优推力控制策略，抑制或消除推力脉动，实现电机在高加速工况下的平滑推力控制。

In this project, a short primary double-side six-phase linear induction motor for electromagnetic launch is studied in detail, which focuses on solving the problems of thrust drop and thrust pulsation caused by dynamic end effect, so as to improve the control accuracy of the system under the high acceleration short stroke non-uniform speed condition. Considering the dynamic and static parameters of the motor, the rule of the dynamic end effect influence on the motor parameters and time-varying characteristics of the motor parameters will be analyzed. Considering the asymmetry of the motor and the coupling between windings, the asymmetric time-varying model of the six-phase linear induction motor will be established. Based on the model, a vector control strategy will be proposed to compensate for the thrust drop and improve the control accuracy. This method can update the correction coefficients through on-line calculation and modify the slip frequency and torque current in real time. Combined with the distortion characteristics of air-gap magnetic field and the system safety boundary under the influence of dynamic end effect, the internal loop control will be optimized. And the optimal thrust control strategy will be proposed to restrain or eliminate the thrust pulsation, so as to realize the smooth thrust control of motor under high acceleration conditions.