Information Technology Reference
In-Depth Information
Optimization of Train Energy-Ecient
Operation Using Simulated Annealing Algorithm
Ting Xie 1 ,ShuyiWang 2 ,XiaZhao 1 , and Qiongyan Zhang 3
1 School of Electronic Information and Electrical Engineering, Automation,
Shanghai JiaoTong University, Shanghai, 200240, China
hustxt@126.com, xiazhao@sjtu.edu.cn
2 Department of Electrical and Computer Engineering, University of British
Columbia, Vancouver, V6T 1Z4, Canada
sdjksdafji@gmail.com
3 Technical Center of Shanghai Shentong Metro Group, Shanghai, 201103, China
zhangqiongyan77@yahoo.com.cn
Abstract. Rail transit plays an increasingly important role in the public
transportation system, and effectively reducing its huge energy consump-
tion is of great practical significance. An optimization method is proposed
to minimizes energy consumption by comprehensively considering speed
limit, track alignment and running time. The objective function is total
energy consumption. The decision variables are the location where train
enters the state of coasting. A simulated annealing algorithm(SA) is de-
veloped to search for optimized coasting point. The developed model is
applied to a particular segment of route in Shanghai. Experiment results
demonstrate that, although there was a mite increase of running time,
the method could effectively reduce energy consumption.
Keywords: rail, transitenergy, consumptionsimulated, annealingsimu-
lation.
1 Introduction
Rail transit plays an increasingly important role in the urban public transporta-
tion system, but it is also energy-intensive. Developing an optimal train speed
profile for energy-ecient train operation shows both theoretical and practical
significance. Coasting, which is a train running state of removal of traction and
brake, is considered to be one of the most ecient energy saving measures for
train movements in an inter station run when the running time is guaranteed
[1]. Under the constraints of train condition, speed limit, track alignment, and
running time, an optimization method, which minimizes energy consumption by
selecting appropriate coasting point, could increase ecient energy use and make
rail transit system more sustainable.
In the field of energy-ecient control of rail transit, a lot of research has been
developed by both domestic and international scholars [2-4]. However, previ-
ous studies mainly focused on a single coasting run(such as: traction-coasting-
braking). The complicated track alignment and speed limits were not the main
 
Search WWH ::




Custom Search