TELKOMNIKA Telecommunication, Computing, Electronics and Control
Energy-efficient speed profile: an optimal approach with fixed running time
Dublin Core
Title
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Energy-efficient speed profile: an optimal approach with fixed running time
Energy-efficient speed profile: an optimal approach with fixed running time
Subject
Energy-efficient operation methodology, Energy-saving, Metro system, Pontryagin’s maximum principle, Timetable optimization
Description
Tracking the optimal speed profile in electric train operation has been
proposed as an efficient and feasible solution for not only reducing energy consumption, but also no at costs to upgrading the existing railway systems. This paper focuses on finding the optimal speed profile based on Pontryagin’s maximum principle (PMP) while ensuring the fixed running time, and comparing energy saving levels in the cases of applying or not applying PMP. The way to determine the fixed running time also differs from works published is to calculate the total trip time equal to scheduled timetable exactly. Calculating accelerating time ta, coasting time tc, braking time tb via values of maximum speed vh, braking speed vb of optimal speed profile. The other hands, vh and vb are determined by solving nonlinear equations with constraint condition: the running time equal to the demand time. Simulation results with data collected from electrified trains of Cat Linh-Ha Dong metro line, Vietnam show that energy reduction for the entire route when PMP utilization is up to 8.7% and running time complied with scheduled timetables.
proposed as an efficient and feasible solution for not only reducing energy consumption, but also no at costs to upgrading the existing railway systems. This paper focuses on finding the optimal speed profile based on Pontryagin’s maximum principle (PMP) while ensuring the fixed running time, and comparing energy saving levels in the cases of applying or not applying PMP. The way to determine the fixed running time also differs from works published is to calculate the total trip time equal to scheduled timetable exactly. Calculating accelerating time ta, coasting time tc, braking time tb via values of maximum speed vh, braking speed vb of optimal speed profile. The other hands, vh and vb are determined by solving nonlinear equations with constraint condition: the running time equal to the demand time. Simulation results with data collected from electrified trains of Cat Linh-Ha Dong metro line, Vietnam show that energy reduction for the entire route when PMP utilization is up to 8.7% and running time complied with scheduled timetables.
Creator
An Thi Hoai Thu Anh, Nguyen Van Quyen
Source
DOI: 10.12928/TELKOMNIKA.v20i3.19525
Publisher
Universitas Ahmad Dahlan
Date
June 2022
Contributor
Sri Wahyuni
Rights
ISSN: 1693-6930
Relation
http://journal.uad.ac.id/index.php/TELKOMNIKA
Format
PDF
Language
English
Type
Text
Coverage
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Files
Collection
Citation
An Thi Hoai Thu Anh, Nguyen Van Quyen, “TELKOMNIKA Telecommunication, Computing, Electronics and Control
Energy-efficient speed profile: an optimal approach with fixed running time,” Repository Horizon University Indonesia, accessed November 10, 2024, https://repository.horizon.ac.id/items/show/4335.
Energy-efficient speed profile: an optimal approach with fixed running time,” Repository Horizon University Indonesia, accessed November 10, 2024, https://repository.horizon.ac.id/items/show/4335.