Research on optimal control strategy for electric braking performance of urban rail vehicles

LIU Donghui; ZHAO Leiting; WANG Yongxiang; LIU Kan

doi:10.13890/j.issn.1000-128X.2024.02.009

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Research on optimal control strategy for electric braking performance of urban rail vehicles

Converting and Control | 更新时间：2024-08-02

- Research on optimal control strategy for electric braking performance of urban rail vehicles
- Electric Drive for Locomotives Issue 2, Pages: 75-80(2024)
- 作者机构：
  
  北京纵横机电科技有限公司，北京 100094
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128X.2024.02.009
  CLC： U231;U260.352
- Published：10 March 2024，
  
  Received：06 December 2023，
  
  Revised：17 January 2024，
- 稿件说明：
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刘东辉, 赵雷廷, 王永翔, 等. 城轨车辆电制动性能优化控制策略研究[J]. 机车电传动, 2024(2): 75-80.

LIU Donghui, ZHAO Leiting, WANG Yongxiang, et al. Research on optimal control strategy for electric braking performance of urban railvehicles[J]. Electric drive for locomotives,2024(2): 75-80.
刘东辉, 赵雷廷, 王永翔, 等. 城轨车辆电制动性能优化控制策略研究[J]. 机车电传动, 2024(2): 75-80. DOI：10.13890/j.issn.1000-128X.2024.02.009.

LIU Donghui, ZHAO Leiting, WANG Yongxiang, et al. Research on optimal control strategy for electric braking performance of urban railvehicles[J]. Electric drive for locomotives,2024(2): 75-80. DOI：10.13890/j.issn.1000-128X.2024.02.009.

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 proposed for achieving precise stopping

enhancing ride comfort

reducing losses and saving energy through pure electric braking of asynchronous 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

Keywords

urban rail transitzero-speed electric brakingmodel and data dual drivedeceleration controllerfull-order rotor flux observerhardware-in-the-loop simulation platform

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