Urban Rail Transit Vehicle Light-weighting and Energy-saving Technologies
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 2
Abstract
[Objective] The increasing use of fully automated driving and high-redundancy technologies in urban rail transit vehicles (hereinafter referred to as ′metro′) leads to the increase of on-board device amount to varying degrees, resulting in the increasing mass of metro vehicles. Additionally, due to the significant overall transport capacity of metro vehicles, their overall energy consumption remains at a higher level. Therefore, it is necessary to study the light-weighting and energy-saving technologies for metro vehicles. [Method] Measures for reducing the weight of carbody, traction and auxiliary power systems, bogies and braking systems, air-conditioning and door systems, couplers and gangways, as well as vehicle interior and compartment equipment, are introduced. Energy-saving measures for the traction and auxiliary power systems, air-conditioning system, and lighting system are presented respectively. [Result & Conclusion] Feasible light-weighting measures include adopting a full aluminum carbody structure for , utilizing permanent magnet synchronous motors for the traction system, employing high-frequency auxiliary inverters for auxiliary power system, implementing high-frequency soft-switching design for chargers, adopting light-weighting design for bogies, modular design for braking system, and new material for interior and compartment equipment. Available energy-saving measures include the adoption of permanent magnet synchronous motor in traction system, the application of high-frequency topological structure for auxiliary power system, the use of frequency converter technology for air-conditioning system, and OLED (organic light-emitting diode) light sources for lighting system. By implementing the described light-weighting and energy-saving measures, the target of vehicle overall light-weighting by over 10% and achieving energy-saving of over 10% can be effectively realized.
Authors and Affiliations
Chengpeng CAO, Juncai YAN, Xingjia WANG
Keywords
Related Articles
- EP ID EP730112
- DOI 10.16037/j.1007-869x.2024.02.047
- Views 27
- Downloads 0
Design and Optimization Experimental Verification of Heat Dissipation System for High-power High-frequency Auxiliary Converters in Metro Trains
[Objective] With the high-degree integration of high-power auxiliary converters in metro trains, the demand for heat dissipation is rising significantly, necessitating the proposal of a new heat dissipation system design...
Simulation Research on Metro Train Control Circuit Based on Network Topology
[Objective] To meet the training needs of metro drivers and maintenance personnel in studying metro control circuit principles, a MTCCS (metro train control circuit simulation system) is designed to address the issues of...
Influence of Wheel Flat Scars on High-speed Train Transmission Geer Dynamic Characteristics
Objective Wheel flat scars can exacerbate the vibration of train transmission gears. Therefore, it is necessary to study the impact of wheel flat scars on the vibrational dynamic characteristics of high-speed train trans...
Optimization of Mecca Light Rail Train Organization during Peak Hours Based on Virtual Formation Technology
Objective With the annual increase of pilgrim flow in Mecca, the throughput capacity of Makkah Metro Pink Line (simplified as Mecca light rail) operation plan during peak hours is saturated. Therefore, it is aimed to exp...
Real-time Fault Locating Method for Urban Rail Transit CBTC System
[Objective] To carry out rapid fault diagnosis and locating for urban rail transit CBTC (communication-based train control) system, a real-time fault monitoring and locating method based on time constraints is proposed,...