城轨车辆电制动性能优化控制策略研究
Research on optimal control strategy for electric braking performance of urban rail vehicles
刘东辉 1赵雷廷 1王永翔 1刘衎1
作者信息
- 1. 北京纵横机电科技有限公司,北京 100094
- 折叠
摘要
针对城市轨道交通车辆启停频繁的特点,为实现精准停车、提升乘坐舒适度、降低损耗、节约能源等目的,文章提出一种异步电机纯电制动至零速停车的控制策略.在车辆运行全速范围内,利用数据与模型双驱动技术预测车辆最大可用减速度;在车辆电制动低速区段,设计减速度控制器针对电机制动转矩指令值进行实时调节;采用离散化闭环全阶转子磁链观测器辨识电机运行频率,从而利用辨识频率值替代速度传感器采集频率值完成停车过程.最终,通过半实物仿真平台和车辆运行试验证明上述研究策略的有效性.
Abstract
In light of the characteristics of frequent starting and stopping of urban rail transit vehicles,a control strategy was pro-posed for achieving precise stopping,enhancing ride comfort,reducing losses and saving energy through pure electric braking of asyn-chronous motors to zero speed.Within the full-speed range of vehicle operation,a dual-drive technology based on data and model was utilized to predict the maximum available deceleration of the vehicle.In the low-speed range of vehicle electric braking,a deceleration controller was designed to adjust the torque command value for motor braking in real-time.A discretized closed-loop full-order rotor flux observer was employed to identify the operating frequency of the motor,enabling the use of the identified frequency value to replace the frequency value collected by the speed sensor to complete the stopping process.Finally,the effectiveness of the above research strategy was validated through a hardware-in-the-loop simulation platform and vehicle operation tests.
关键词
城市轨道交通/零速电制动/数据与模型双驱动/减速度控制器/全阶转子磁链观测器/半实物仿真平台Key words
urban rail transit/zero-speed electric braking/model and data dual drive/deceleration controller/full-order rotor flux observer/hardware-in-the-loop simulation platform引用本文复制引用
基金项目
中国城市轨道交通协会科研专项(CAMET-KY-2022039)
中国铁道科学研究院集团有限公司院基金课题(2022YJ230)
出版年
2024
NETL
NSTL
万方数据