An extended rolling stock problem with empty trains timetabling through a heuristic approach

OR Insight ◽  
2013 ◽  
Vol 26 (4) ◽  
pp. 220-233
Author(s):  
Natalia Ibáñez-Herrero ◽  
Álvaro García-Sánchez ◽  
Miguel Ortega-Mier ◽  
Francisco Javier Diego-Martín
Keyword(s):  
Heuristic Approach ◽  
Rolling Stock

A SEARCH-BASED APPROACH TO RAILWAY ROLLING STOCK ALLOCATION PROBLEMS

2011 ◽  
Vol 03 (04) ◽  
pp. 443-456 ◽  
Author(s):  
TOMOSHI OTSUKI ◽  
HIDEYUKI AISU ◽  
TOSHIAKI TANAKA
Keyword(s):  
Approximate Solution ◽  
Real Life ◽  
Heuristic Approach ◽  
Set Partitioning ◽  
Allocation Problem ◽  
Rolling Stock ◽  
Commodity Flow ◽  
Life Problems ◽  
Stock Allocation ◽  
Railway Rolling Stock

Experts working for railway operators still have to devote much time and effort to creating plans for rolling stock allocation. In this paper, we formulate the railway rolling stock allocation problem as a set partitioning multi-commodity flow (SPMCF) problem and propose a search-based heuristic approach for SPMCF. We show that our approach can obtain an approximate solution near the optimum in shorter time than CPLEX for real-life problems. Since our approach deals with a wide variety of constraint expressions, it would be applicable to automatic development of practical plans for many railway operators.

Fairness, LMX, and job performance: A fairness heuristic approach

2004 ◽  
Author(s):  
Jeff Johnson ◽  
Talya N. Bauer ◽  
Leslie B. Hammer ◽  
Donald M. Truxillo
Keyword(s):  
Job Performance ◽  
Heuristic Approach

Steel in Rolling Stock

1893 ◽  
Vol 35 (896supp) ◽  
pp. 14312-14313
Keyword(s):  
Rolling Stock

Analysis and Design of 3.3 kV IGBT Based Three-Level DC/DC Converter with High-Frequency Isolation and Current Doubler Rectifier

2009 ◽  
Vol 25 (25) ◽  
pp. 103-108
Author(s):  
Dmitri Vinnikov ◽  
Tanel Jalakas ◽  
Indrek Roasto
Keyword(s):  
High Voltage ◽  
High Frequency ◽  
Power Converter ◽  
Rolling Stock ◽  
Analysis And Design ◽  
Auxiliary Power ◽  
Igbt Modules ◽  
Isolation Transformer ◽  
New Generation ◽  
Generation Power

Analysis and Design of 3.3 kV IGBT Based Three-Level DC/DC Converter with High-Frequency Isolation and Current Doubler RectifierThe paper presents the findings of a R&D project connected to the development of auxiliary power supply (APS) for the high-voltage DC-fed rolling stock applications. The aim was to design a new-generation power converter utilizing high-voltage IGBT modules, which can outpace the predecessors in terms of power density, i.e. to provide more power for smaller volumetric space. The topology proposed is 3.3 kV IGBT-based three-level neutral point clamped (NPC) half-bridge with high-frequency isolation transformer and current doubler rectifier that fulfils all the targets imposed by the designers. Despite an increased component count the proposed converter is very simple in design and operation. The paper provides an overview of the design with several recommendations and guidelines. Moreover, the simulation and experimental results are discussed and the performance evaluation of the proposed converter is presented.

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