Results 41 to 50 of about 413 (183)

Passenger Flow‐Aware Train Scheduling Model for Minimising Energy Consumption in Urban Rail Systems

IET Intelligent Transport Systems, Volume 20, Issue 1, January/December 2026.
This study proposes a dynamic‐programming (DP)‐based train scheduling framework that models the interaction among passenger flow, train mass, and energy consumption, enabling energy‐efficient operation under time‐varying demand. Case studies on a real metro line show that the method reduces energy consumption by up to 10.8% while maintaining transport ...
Haoran Geng, Zhongbei Tian, Masafumi Miyatake, Deshi Kong, Qian Xu   +4 more
wiley   +1 more source

A Dynamic Programming‐Based Cooperative Optimization Approach for Energy Consumption Reduction of Substations in AC Railway Systems

IET Intelligent Transport Systems, Volume 20, Issue 1, January/December 2026.
A comprehensive method that integrates the energy optimization with the AC traction power supply modelling is proposed to achieve the energy‐saving operation in the single‐train and double‐train scenarios. ABSTRACT In this paper, a comprehensive method that integrates the energy optimization with the AC traction power supply modeling is proposed to ...
Guang Yang, Wenbo Li, Deqing Huang, Yong Chen   +3 more
wiley   +1 more source

MATHEMATIC SIMULATION OF TRANSIENT PROCESS IN A.C. – SYSTEM “ELECTRIC TRACTION NETWORK – LOCOMOTIVE” 1. SWITCH ON LOCOMOTIVE’S POWER CONVERTER IN “FREE PLAY” MODE; PARAMETERS ESTIMATION

Nauka ta progres transportu, 2010
In the article the electric circuit of substitution and mathematical model of the system of alternating current «traction substation − traction mains − electric locomotive DS 3» at switching its power transformer on in the idle mode are presented ...
T. M. Mishchenko, A. I. Kiiko
doaj  

Circulating Current Analysis in DC Traction Power Supply System with Inverter Feedback Devices

Chengshi guidao jiaotong yanjiu
ObjectiveIn the DC traction power supply system of urban rail transit equipped with inverter feedback devices, electrical loops can be formed between the inverter feedback devices and rectifier devices in the substation or between adjacent substations ...
Xianliang LI, Jian ZHANG, Xiaodong ZHANG, Yijiang NIU, Wei LIU, Wei WANG   +5 more
doaj   +1 more source

Collaborative Energy‐Efficient Optimisation on Timetabling, Stop Planning and Train Speed Profile for Suburban Railway Lines Under Time‐Dependent Passenger Demand

IET Intelligent Transport Systems, Volume 20, Issue 1, January/December 2026.
This paper presents a collaborative optimisation framework that jointly integrates train stop planning, timetable design and continuous speed profile optimisation for suburban railway lines under time‐dependent passenger demand. By treating the number of operating trains as a decision variable, the proposed approach explicitly captures the trade‐offs ...
Dewei Li, Enhua Xu, Xinlei Dong, Zhengwen Liao, Anthony Chen, Wei Dai, Yong Zhang, Giorgio Medeossi   +7 more
wiley   +1 more source

THE MATHEMATIC STIMULATION OF TRANSIENT PROCESS IN A.C. – SYSTEM “ELECTRIC-TRACTION NETWORK – LOCOMOTIVE” 3. SWITCHING ON MAIN POWER CONVERTER IN “FREE PLAY” MODE; THE ANALYSIS OF VOLTS AND CURRENTS IN THE POWER SUPPLY INPUT SYSTEM

Nauka ta progres transportu, 2011
The article is a continuation of analysis of the electric equivalent AC circuit «traction substation − device of transversal compensation − electric-traction network − electric locomotive DS 3» and the influence on a power transformer in the idle mode,
T. M. Mischenko
doaj  

Using normalised cross correlation and variance to determine the source of voltage unbalance exceedances in Eskom networks with wind farms

Journal of Energy in Southern Africa, 2019
During an exceedance of the voltage unbalance limit at a busbar there is a need to determine which entity is causing the problem between Eskom, wind farms and other entities that can influence the voltage unbalance at the busbar.
N. Ntsadu
doaj   +1 more source

HARMONIOUS DISTORTIONS IN THE NETWORKS FEEDING TRACTION SUBSTATIONS

Modern Technologies and Scientific and Technological Progress, 2020
Results of the researches directed to definition of harmonious distortions in the feeding electrical networks depending on the weight of trains are given.
openaire   +2 more sources

Assessing Vulnerability and Mitigating Risks in Distribution Networks With High Penetration of Renewable Energy

IET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
This study comprehensively delves into the effects of high DER penetration on the performance, resilience and vulnerability of LV distribution systems. In this research, we propose a comprehensive risk assessment framework to address the challenges imposed on the distribution networks due to high DER penetration.
Khalil Gholami, Mohammad Taufiqul Arif, Md Enamul Haque, Ameen Gargoom, Shamsul Huda, Abrar Aziz   +5 more
wiley   +1 more source

Mobile Microgrids: Concepts, Key Technologies, Business Models, Applications and Prospects

IET Smart Grid, Volume 9, Issue 1, January/December 2026.
Our study explores MMG concepts, key technologies, business models and applications, illustrating their impact on improving the flexible ADN operation. This study emphasises not only the practical importance of MMGs but also their pivotal role in reshaping the future landscape of energy delivery, offering valuable insights for researchers, policymakers
Tao Ding, Chenggang Mu, Yujie Ding, Shunqi Wang, Rui Song, Mohammad Shahidehpour   +5 more
wiley   +1 more source