Design of Energy-Efficient Train Speed Profiles Considering Fixed-Block Signalling System

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  • Oba Naoki
    Electrical and Electronics Engineering, Graduate School of Scienceand Technology, Sophia University
  • Miyatake Masafumi
    Electrical and Electronics Engineering, Graduate School of Scienceand Technology, Sophia University

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  • 固定閉塞式信号システムの影響を考慮した列車の省エネルギー運転曲線導出
  • コテイ ヘイソクシキ シンゴウ システム ノ エイキョウ オ コウリョ シタ レッシャ ノ ショウエネルギー ウンテン キョクセン ドウシュツ

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Abstract

<p>In dense traffic railway networks, trains may often slow down or stop between stations owing to previous train delays. If preceding train trajectory can be predicted, energy-efficient driving can be achieved by suppressing unnecessary speed changes. In this paper, we propose an algorithm to find energy-efficient driving considering fixed-block signalling (FBS) system by using dynamic programming (DP). DP is suitable for use because it can optimize the control inputs with discrete and state constraints. In this paper, we discuss energy-efficient driving by considering a FBS system using some case studies of simulation. In the simulation, we examine a technique to drive an express train in an energy-efficient way when the preceding local train is running toward the station with passing loops. The results show that the proposed method can derive complex speed profiles for energy-efficient driving and the train can be operated with a maximum reduced energy consumption of 8.3%.</p>

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