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 14
- Downloads 0
Optimal Algorithm of Tram Section Energy-saving Speed Curve under Fixed Time Constraint
Objective Calculation of tram operation control scheme taking into account energy consumption requires a great deal of calculation of the energy-saving speed profile. In order to establish an accurate and efficient optim...
Exploration and Practice of Intelligent Operation-maintenance Platform for Hang-Hai Intercity Railway Track Hospital
[Objective] Aimed at the OM (operation-maintenance) pain points and intelligent OM requirements of Hang-Hai (Hangzhou to Haining) Intercity Railway, to explore a path for intelligent OM high-quality development, the inve...
Research on AH-model Vehicle Clearance Based on Dynamics Simulation Calculation
Objective The AH-model vehicle combines the characteristics of A and B type model vehicles. Due to its structural differences from conventional metro vehicles, there are currently no corresponding standards on vehicle cl...
Adjustment of Nantong Urban Rail Transit Network Planning after Introducing Important Regional Transportation Infrastructure
Objective Under the background of regional integration of Yangtze River Delta, the introduction of important regional transportation infrastructures such as the new airport (hub) station in Nantong will not only greatly...
Propagation Law of Structural Vibration in Large Transportation Hub and Vibration/Seismic Isolation Measures
[Objective] Large-scale integrated transportation hub structure is a vital component in urban layout, characterized by significant investment, extensive construction scale, and diverse functionalities. Ensuring the resil...