Design of energy‐efficient train speed profiles considering fixed‐block signaling system. Issue 1 (25th April 2018)

• Record Type: Journal Article
• Authors: Oba, Naoki; Miyatake, Masafumi
• Is Part Of: Electrical engineering in Japan. Volume 205:Issue 1(2018)
• Page Start: 26
• Page End: 35
• Publication Date: 2018-04-25
• Subjects: dynamic programming -- energy‐efficient driving -- fixed‐block signaling system -- speed profile; Electrical engineering -- Periodicals; 621.30952
• DOI: 10.1002/eej.23114
• Languages: English
• ISSNs: 0424-7760

Abstract

Abstract: 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 signaling (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%.