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动车组运行环境复杂多变、运行过程中空气阻力对动车组运行性能有较大影响,基于线性模型的动车组运行控制策略难以满足高精度跟踪给定速度-位移曲线要求。提出一种动车组非线性模型描述及其运行速度控制方法。首先,基于动车组牵引特性和系统运行数据,建立了动车组LSSVM非线性模型;给出了基于LSSVM模型的动车组运行速度控制方法。基于CRH380AL型动车组运行数据的仿真结果验证了该方法的有效性。
The operating environment of the EMUs is complex and changeable. The air resistance during the operation has a significant impact on the EMU operational performance. The EMU operation control strategy based on the linear model can not meet the requirements of high-precision tracking of the given speed-displacement curve. A nonlinear model description of EMU and the control method of its running speed are proposed. First, based on EMU traction characteristics and system operation data, a nonlinear model of EMU LSSVM is established. An EMU speed control method based on LSSVM model is given. The simulation results based on CRH380AL EMU operating data verify the effectiveness of the method.