TY - JOUR
T1 - Energy-efficient operation of electric freight trains-part i
T2 - speed profile optimization
AU - Yang, Jie
AU - Jia, Limin
AU - Lu, Shaofeng
AU - Li, Zhuoyue
N1 - Publisher Copyright:
© 2016, Science Press. All right reserved.
PY - 2016/4/15
Y1 - 2016/4/15
N2 - Train control is a typical complex time-varying process with nonlinear, multi-constraint, and multi-objective characteristics. Its speed profile optimization is currently a major bottleneck that restricts the engineering application of energy-efficient train control technology. This paper proposed a new speed profile optimization algorithm for freight train with electric locomotive by means of mathematical reasoning, logic analysis and software simulation. Firstly, the paper proposed the concept of lumped model of energy consumption sensitivity and total factor energy consumption mechanism, so as to show the importance of these factors during the optimization process. Secondly, the paper simplified the calculation of breaking point in level track. Thirdly, it proved the optimality of speed holding in the transition slope track, and obtained the method for determining the mode switching points of lines with transition slope. Finally, it introduced the average speed equivalent holding algorithm for steep slope track. Simulation based on the total factor lumped model of energy consumption proved efficient optimization and faster calculation speed of the proposed algorithm.
AB - Train control is a typical complex time-varying process with nonlinear, multi-constraint, and multi-objective characteristics. Its speed profile optimization is currently a major bottleneck that restricts the engineering application of energy-efficient train control technology. This paper proposed a new speed profile optimization algorithm for freight train with electric locomotive by means of mathematical reasoning, logic analysis and software simulation. Firstly, the paper proposed the concept of lumped model of energy consumption sensitivity and total factor energy consumption mechanism, so as to show the importance of these factors during the optimization process. Secondly, the paper simplified the calculation of breaking point in level track. Thirdly, it proved the optimality of speed holding in the transition slope track, and obtained the method for determining the mode switching points of lines with transition slope. Finally, it introduced the average speed equivalent holding algorithm for steep slope track. Simulation based on the total factor lumped model of energy consumption proved efficient optimization and faster calculation speed of the proposed algorithm.
KW - Energy-efficient train control
KW - Optimization
KW - Speed profile
UR - http://www.scopus.com/inward/record.url?scp=84968571737&partnerID=8YFLogxK
U2 - 10.3969/j.issn.1001-8360.2016.04.004
DO - 10.3969/j.issn.1001-8360.2016.04.004
M3 - Article
AN - SCOPUS:84968571737
SN - 1001-8360
VL - 38
SP - 22
EP - 31
JO - Tiedao Xuebao/Journal of the China Railway Society
JF - Tiedao Xuebao/Journal of the China Railway Society
IS - 4
ER -
