Battery Self-Traction System for High-Speed Trains

2020 ◽  
Vol 140 (5) ◽  
pp. 349-355
Author(s):  
Hirokazu Kato ◽  
Kenji Sato
Keyword(s):  
High Speed ◽  
High Speed Trains ◽  
Traction System

Dynamic Analysis of Support System of Permanent Magnet Traction Motors for High-Speed Trains

2013 ◽  
Vol 416-417 ◽  
pp. 1883-1888
Author(s):  
Ting Li ◽  
Jian Cheng Zhang ◽  
You Tong Fang
Keyword(s):  
Support System ◽  
High Speed ◽  
Random Vibration ◽  
High Speed Train ◽  
Vibration Load ◽  
Technical Requirements ◽  
Traction Motors ◽  
High Speed Trains ◽  
Strength And Stiffness ◽  
Traction System

During the operation, the high speed train will be subject to random vibration load induced by the roughness of the rail and will cause the vibration. Traction motor is critical component of traction system for high-speed train. It is subject to not only static loads, but also random vibration load. This kind of random vibration load may easily lead to fatigue damage of the structure, which will finally cause adversely effect to the motor. Thus, in this paper, a 3-dimension model of the support system of traction motors in high-speed train applications is built, and the static and modal analyses are undertaken using finite element calculation software. The simulation results confirm that the support system is robust enough to meet the design requirements of strength and stiffness. Furthermore, it has a larger margin of safety in a typical case which meets the technical requirements for safe operation of the high-speed train.

scholarly journals Review and prospect of maintenance technology for traction system of high-speed train

2021 ◽  
Vol 3 (3) ◽  
Author(s):  
Shaolong Xu ◽  
Chunyang Chen ◽  
Zhenjun Lin ◽  
Xiao Zhang ◽  
Jisheng Dai ◽  
...  
Keyword(s):  
High Speed ◽  
Research Direction ◽  
Maintenance Cost ◽  
High Speed Train ◽  
Transportation Industry ◽  
Key Factors ◽  
The World ◽  
High Speed Trains ◽  
Oil Crisis ◽  
Traction System

Abstract In the past few decades, high-speed trains have witnessed tremendous and vigorous development with the appearance of the oil crisis and industrialization, which became a significant trend in the transportation industry the world over. With the increase of high-speed railway mileage, the amount of high-speed train has grown sharply, the service life of the trains has increased gradually and the components of the vehicle traction system have become worn and aged as a result. Therefore, advanced maintenance technology and its application are key factors to reduce maintenance cost, human resource input and ensure safe, stable and reliable operation of trains. This paper summarizes and discusses the development, application mode, maintenance management and maintenance technology of high-speed railways of the major countries in the world, especially discusses the condition-based maintenance and the key technology of the traction electrical system, and offers the prospect of research direction and the development of traction maintenance technology.

scholarly journals Modeling of traction power supply systems for movement of high-speed trains

2018 ◽  
Vol 216 ◽  
pp. 02006
Author(s):  
Aleksandr Cherepanov ◽  
Vasily Zakaryukin ◽  
Andrey Kryukov
Keyword(s):  
Power Supply ◽  
High Speed ◽  
Rolling Stock ◽  
Software Complex ◽  
Positive Effects ◽  
High Speed Trains ◽  
Traction Power Supply ◽  
Traction System ◽  
Supply Systems ◽  
Traction Power

Upgrading of traction power supply systems will be required to transfer electrified railway lines to high-speed traffic. Coaxial cables and balancing transformers can be used as technical upgrading means. The article presents the results of computer simulation in the Fazonord software complex of the traditional 2x25 kV traction system, as well as systems with coaxial cables and Woodbridge symmetric transformers. Simulation results showed that the use of cables contributes to a significant increase in the level of voltage on current collectors of electric rolling stock. Use of modified Woodbridge transformers makes it possible to reduce the imbalance coefficient by the reverse sequence on high voltage buses of traction substations. However, the reduction is insignificant and depends on the modes of movement of trains in adjacent inter-station zones. The biggest positive effects occur in the integrated application of balancing transformers and coaxial cables.

Diagnostics of Rolling Element Bearings for the Traction System of High Speed Trains: Experimental Evidences

2013 ◽  
Author(s):  
S. Chatterton ◽  
P. Pennacchi ◽  
R. Ricci ◽  
P. Borghesani
Keyword(s):  
Signal Processing ◽  
High Speed ◽  
Rolling Element Bearings ◽  
High Speed Train ◽  
Term Operation ◽  
Rolling Element ◽  
High Speed Trains ◽  
Traction System ◽  
Processing Techniques ◽  
Signal Processing Techniques

Monitoring of the integrity of rolling element bearings in the traction system of high speed trains is a fundamental operation in order to avoid catastrophic failures and to implement effective condition-based maintenance strategies. Diagnostics of rolling element bearings is usually based on vibration signal analysis by means of suitable signal processing techniques. The experimental validation of such techniques has been traditionally performed by means of laboratory tests on artificially damaged bearings, while their actual effectiveness in industrial applications, particularly in the field of rail transport, remains scarcely investigated. This paper will address the diagnostics of bearings taken from the service after a long term operation on a high speed train. These worn bearings have been installed on a test-rig, consisting of a complete full-scale traction system of a high speed train, able to reproduce the effects of wheel-track interaction and bogie-wheelset dynamics. The results of the experimental campaign show that suitable signal processing techniques are able to diagnose bearing failures even in this harsh and noisy application. Moreover, the most suitable location of the sensors on the traction system is also proposed.

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