【摘要】 针对传统的牵引电机矢量控制方法不能快速应对动车组高速运行时的转矩突变问题,提出一套新的基于固定电压模式的矢量控制方法。该方法在牵引变流器电压幅值固定的模式下,通过变流器电压相位的高速变化结合牵引电机磁通量修正反馈值来实现对动车组牵引电机高速转矩的实时控制。并采用Simulink进行了系统建模,完成了系统仿真测试分析,结果验证了方案的可行性和优越性。更多还原

【Abstract】 The dissertation presents a new vector control method based on fixed voltage mode,which is designed by aiming at the defects in traditional vector control methods of traction motor,which can′t meet the need of high speed torque′s saltation.Under the mode of fixed voltage amplitude of the traction converter,the method presented can achieve the real-time control of high speed torque′s saltation of the traction motor,through the way of combining the high-speed change of converter′s voltage phase with the modified value of the magnetic flux feedback.The results are achieved through theory analysis and simulation experiment,which proves the feasibility and advantage of the control method.更多还原