Electric train energy consumption modeling

Wang, Jinghui

doi:10.1016/j.apenergy.2017.02.058

Cited by 61 publications

(17 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The first group achieves energy savings by calibrating timetables and optimizing the speed profile of trains. Relevant studies focus on single-train or multi-train operations and are mainly applied in regular railway lines ( Wang and Rakha, 2017;Ye and Liu, 2016;Zhou et al, 2017 ). The second group focuses on the energy-saving TP-SL, and the related studies generate integrated optimization solutions by embedding a set of pre-generated train speed profiles or a train speed profile generation process into the timetabling process ( Yin et al, 2017;Canca et al, 2018;Su et al, 2019 ).…”

Section: Integrated Optimization Problemmentioning

confidence: 99%

An exact method for the integrated optimization of subway lines operation strategies with asymmetric passenger demand and operating costs

D’Ariano

Yang

et al. 2021

Transportation Research Part B: Methodological

View full text Add to dashboard Cite

Subway lines connecting different urban functional zones in large cities have directiondependent and time-variant passenger demand, namely, asymmetry in passenger demand. Most existing studies adopt a symmetric strategy to design operations in both directions and sequentially optimize the different problems associated with operations, thereby failing to meet the asymmetry in passenger demand. This study formulates an asymmetric operation strategy as an integrated mixed-integer non-linear model to optimize the entire operational process of rolling stock from the perspective of service quality and operating costs. Based on the proposed model, an exact algorithm is proposed with speed-up techniques to quickly generate an optimal solution. To this end, the original model is decomposed into several sub-problems that can be exactly solved by using a forward dynamic programming algorithm. Based on actual data from the Beijing subway's Yizhuang line, numerical experiments are conducted to investigate the effectiveness of the asymmetric operation strategy, to identify managerial insights on the integrated optimization, and to evaluate the performance of the proposed methodology.

show abstract

Section: Integrated Optimization Problemmentioning

confidence: 99%

An exact method for the integrated optimization of subway lines operation strategies with asymmetric passenger demand and operating costs

D’Ariano

Yang

et al. 2021

Transportation Research Part B: Methodological

View full text Add to dashboard Cite

show abstract

“…In the project named MALTESE, energy consumption calculations of the existing LRT systems for energy management and efficiency in Light Rail Systems in Europe were made, in addition to this, a new vehicle with the energy balance archetype (EPA) Model was developed [1]. In another study, train energy consumption model was developed according to instantaneous regenerative braking efficiency and the developed model was calibrated with an unrestricted nonlinear optimization procedure using data from Portland, Oregon [2]. In the related study, it has been explained that energy recovery reduces the total power consumption by 20% and significantly increases the energy efficiency of the system.…”

Section: Introductionmentioning

confidence: 99%

A multivariate nonlinear regression model for the resistance power of a light rail vehicle

Sertsöz

Fidan

2021

International Journal of Energy Applications and Technologies

View full text Add to dashboard Cite

In Turkey, approximately 20% of the energy expended is spent on transportation. Light rail transportation technology is still in an evolving process. In this development process, it is crucial to have information about the energy consumption of the light rail vehicle according to the different situations of both the vehicle and the railway. It is necessary to predict the power losses that will occur under different driving conditions sensitively to ensure energy efficiency in light rail systems. The most important of these power losses is the resistance loss caused by contact with the route. Resistance loss is dependent multiple environmental conditions. The most important of these conditions can be listed as the weight of the light rail vehicle, the instantaneous speed of the vehicle, the curve of the route, the ramp slope of the route and the friction force arising from these conditions. Resistance loss is proportional and linearly dependent to some of these variables while others show reverse or nonlinear dependence. Due to these different types of dependencies, it is seen that a single multivariate nonlinear model is needed to explain the loss of resistance in all different conditions. In this study, a new and accurate model for resistance losses has been developed by fitting numerical values obtained from different scenarios to multivariate nonlinear regression model.

show abstract

“…In the case of trains powered by single‐phase alternating current, the power is emitted from the substation transformer for most of the train journey to enable train traction. On the other hand, when the train uses the regenerative electric brake, the power flow reverses its direction [11]. In both cases, part of the power emitted from one end does not reach the other end as it is consumed by the electrical infrastructure itself in the form of losses which, being inherent to rail transport, must be included in the calculation of the energy consumption of an electrical train.…”

Section: Introductionmentioning

confidence: 99%

Influence of the rail electrification system topology on the energy consumption of train trajectories

Riego-Martinez

Perez-Alonso

Duque-Pérez

2020

IET Renewable Power Generation

View full text Add to dashboard Cite

Electrically powered rail vehicles are considered one of the most energy‐efficient means of transport. Transport activity is responsible for a considerable part of global energy consumption. The transport industry is therefore obliged to develop strategies for more efficient energy use. Railway electrification systems transmit the electrical power supplied by substations to moving trains. However, part of the power supplied is consumed by the electrification systems and does not reach the trains. In this study, transmission losses in the 2 × 25 kV electrification system are evaluated. The 2 × 25 kV system is widely used in high‐speed and high‐capacity railway lines. Assessment of the performance of the 2 × 25 kV system is carried out by computer simulation of the power flows between the elements involved in train movement by means of simplified physical models. The results show that the reduction of transmission losses is a feasible way to achieve energy savings and to improve the energy efficiency in electrified rail transport. For this, it is essential to add the topology of the electrification system to the data considered in the design of the train trajectories.

show abstract

Electric train energy consumption modeling

Cited by 61 publications

References 32 publications

An exact method for the integrated optimization of subway lines operation strategies with asymmetric passenger demand and operating costs

An exact method for the integrated optimization of subway lines operation strategies with asymmetric passenger demand and operating costs

A multivariate nonlinear regression model for the resistance power of a light rail vehicle

Influence of the rail electrification system topology on the energy consumption of train trajectories

Contact Info

Product

Resources

About