Scholarlink

<p>Urban railway trains generally accelerate to reach the maximum design speed and decelerate when approaching speed-restricted sections, such as turnouts, tunnels, or stations. However, abrupt acceleration and deceleration lead to unnecessary energy consumption and adverse effects such as component wear, track damage, reduced passenger comfort, and higher operational costs. A Train Performance Simulation (TPS) analysis conducted on a planned urban railway line identified eight locations exhibiting abrupt speed variation, occurring 1.1 to 11.99&#xa0;s before the start of the speed-restricted section. In this study, we implemented a coasting control algorithm in the TPS by introducing a speed-restriction variable to overcome the existing challenges. We simulated coasting durations ranging from 1 to 16&#xa0;s to evaluate variations in the travel time and energy consumption. The simulation results indicate that the coasting operation increases the travel time by approximately 3–8% while reducing the power consumption by 14–28%. These findings demonstrate adopting coasting strategies can improve the energy efficiency and reduce operating costs in urban railway systems without significantly affecting the travel time.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Simulation-Based Evaluation of Coasting Operation for Energy Optimization in Urban Railway Systems

  • 期刊论文

  • 发表日期：

    2026年3月6日

查看全文
  • Ho-Hyun Han,
  • Assel Mukasheva,
  • Ki-Sub Kim,
  • Jeong Won Kang

摘要

Urban railway trains generally accelerate to reach the maximum design speed and decelerate when approaching speed-restricted sections, such as turnouts, tunnels, or stations. However, abrupt acceleration and deceleration lead to unnecessary energy consumption and adverse effects such as component wear, track damage, reduced passenger comfort, and higher operational costs. A Train Performance Simulation (TPS) analysis conducted on a planned urban railway line identified eight locations exhibiting abrupt speed variation, occurring 1.1 to 11.99 s before the start of the speed-restricted section. In this study, we implemented a coasting control algorithm in the TPS by introducing a speed-restriction variable to overcome the existing challenges. We simulated coasting durations ranging from 1 to 16 s to evaluate variations in the travel time and energy consumption. The simulation results indicate that the coasting operation increases the travel time by approximately 3–8% while reducing the power consumption by 14–28%. These findings demonstrate adopting coasting strategies can improve the energy efficiency and reduce operating costs in urban railway systems without significantly affecting the travel time.