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机构地区:[1]同济大学电子与信息工程学院
出 处:《城市轨道交通研究》2015年第2期19-23,共5页Urban Mass Transit
摘 要:以CRH380A型动车组为研究对象,阐述了牵引传动系统的工作原理,探讨了脉冲整流器的瞬态电流控制策略和三电平逆变器的空间矢量脉宽调制技术。着重分析了转子磁场定向间接矢量控制和牵引传动控制系统的工作原理。根据CRH380A型动车组实际设计参数,构建了牵引传动控制系统的MATLAB仿真模型,分析了该模型在牵引工况、再生制动工况和不同运行速度下的电机输出转矩和定子相电流波形。仿真结果表明,所建的恒速控制模块能够实现动车组在牵引恒速、惰行和再生制动恒速等不同运行状态间的平滑切换;牵引传动控制系统仿真模型能够实现动车组在牵引和再生制动工况下的稳定运行,达到了预期目标。CRH380A EMUs is selected as the research object, the operating principle of its traction drive system is described. The transient current control strategy of pulsed rectifier and the space vector PWM (pulse width modulation) of three-level inverter are studied, the operating principle of the field-oriented indirect vector control and the traction drive control system are specially analyzed. According to the actual design parameters of CRIt380A E- MUs, the MATLAB (matrix & laboratory) simulation model of the traction drive control system is set up. Then, the waveforms of motor output torque and stator current of the model are analyzed under traction condition, regenerative braking condition and different running velocities. The simulation results indicate that the constant speed control module can realize a smooth switching in different operation states like traction, idling and regenerative braking. The simulation model of the traction drive control system can realize the stable operation of EMUs under the traction and regenerative braking operating condition, and has achieved the expected goal.
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