摘要
为充分利用轮轨间黏着能力,保障高速列车牵引/制动性能发挥,提出了一种新的力矩反馈式优化黏着控制方法。当轮轨黏着条件变恶劣时,该方法可利用电机转矩、转速等信息,构建轮轨切向力系数全维状态观测器,并结合最小二乘法求得黏着蠕滑斜率,进而实施力矩反馈控制,动态调节电机转矩指令,实现复杂路况下轮轨间高黏着利用运行。随后,运用Matlab/Simulink搭建了基于CRH2型高速列车牵引传动黏着控制系统仿真模型。仿真结果验证了该方法的可行性。
To make full use of the adhesion force between wheel and rail and gain good traction/brakingperformance of high-speed trains,a novel torque feedback optimal adhesion control for high-speed trains was proposed.When adhesion condition between wheel and rail turned worse,the tangential force coefficient between wheel and railwas observed by the established full order observer. Meanwhile,the slope of adhesion-slip curve was forecasted by therecursive least squares method with forgetting factor. Then,a torque feedback control function based on thequantization factors reflecting wheel-rail adhesion conditions—the tangential force coefficient and the slope of adhesion-creep curve was built. Through the function the motor torque is adjusted appropriately to achieve high adhesionperformance between wheel and rail under variable complex road conditions. Afterwards,the simulation study of theproposed adhesion control by the Matlab/Simulink was carried out based on the traction control system model of CRH2high-speed trains. The simulation results confirm the feasibility of proposed optimal adhesion control method.
出处
《电气传动》
北大核心
2015年第3期53-57,共5页
Electric Drive
基金
国家"973"重点基础研究发展计划(2011CB711106)
关键词
优化黏着控制
切向力系数
黏着蠕滑斜率
黏着性能
牵引/制动性能
高速列车
optimal adhesion control
tangential force coefficient
slope of adhesion
adhesion performance
traction/braking performance
high-speed train
