Evaluating target speeds of passenger trains in China for energy saving in the effect of different formation scales and traction capacities

Feng, Xia‐Ting; Feng, Jia; Wu, Kunpeng; Liu, Haidong; Sun, Qipeng

doi:10.1016/j.ijepes.2012.04.055

Cited by 19 publications

(10 citation statements)

References 27 publications

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“…Moreover, the decrease of traction power of a train is able to reduce its TEC intensity with more TTE [26,44]. In addition, Feng et al [61] also reveal that in comparison with the TEC of a short HSR train with the same equipments, an HSR train with a long formation may have more TEC for the same trip due to the speed restrictions of the exit switches of the tracks in stations. All these facts require systematically reasonable and flexible applications of trains with different formation lengths and traction capacities in view of detailed passenger travel demands in different operation times or seasons of a rail transport system.…”

Section: Train Attributesmentioning

confidence: 99%

A Review Study on Traction Energy Saving of Rail Transport

Feng

Han-xiao

Ding

et al. 2013

Discrete Dynamics in Nature and Society

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The energy cost of a rail transport system is very big especially for the tractions of trains in its daily operation. Continual effort on decreasing the traction energy cost intensities of various rail transport modes has been made by many researchers and practitioners on different aspects for a long time. From the rail transport operation perspective, this study reviews such energy-saving research mainly focusing on the optimizations of train coasting schemes, the rational designs and utilizations of track alignments, the ameliorations of train attributes, and the improvements of system operations. According to the review work, it is confirmed that in sound responses to distinct track alignments, dynamically optimizing control programs of trains with their reasonably improved attributes ought to be further studied in view of the systematic transport operation of a rail line or network in an integrated manner as much as possible in the future research on traction energy saving of rail transport.

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Section: Train Attributesmentioning

confidence: 99%

A Review Study on Traction Energy Saving of Rail Transport

Feng

Han-xiao

Ding

et al. 2013

Discrete Dynamics in Nature and Society

Self Cite

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“…However, before conducting detailed research on energy efficiency, a precise understanding of the relationship between energy consumption and maximum speed of a train operation is needed. Previous investigations into this relationship have been conducted for the purpose of evaluation of performance of transportation modes [8][9][10], specific project planning [11][12][13], and optimising operations [14][15][16]. Each study was conducted in different contexts, so they are not based on similar conditions and show very different pictures.…”

Section: Introductionmentioning

confidence: 99%

Standardised approach to energy consumption calculations for high‐speed rail

Hasegawa

Nicholson

Roberts

et al. 2016

IET Electrical Systems in Transportation

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Over recent years, high-speed rail (HSR) has increased its maximum speed of operation and strengthened its presence as a major transportation mode. However, the energy consumption of HSR has in general increased as well. In the current climate of rising concern about environmental and economic problems, energy-efficient operational strategies should be investigated, which requires a precise understanding of the relationship between energy consumption and maximum speed. There is some previous research in the field; however, it is presented in different ways and shows different pictures of energy consumption. In this study, the authors present a review of previous work and highlight the inconsistencies between the calculations. In addition, a standardised approach for energy consumption calculations for HSR is provided and an investigation of the cause of inconsistencies in previous work is presented. Through this process, the worth of the proposed standardised approach is demonstrated.

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“…Ecodriving makes use of the combination of different efficient driving strategies. The driving strategies applied in HSR are the speed regulation [3]- [6] and its efficient version that is the speed regulation without braking [7]- [9]. Speed regulation without braking consists of maintaining a constant speed as long as traction effort is needed.…”

Section: Introductionmentioning

confidence: 99%

Energy efficiency in high speed railway traffic operation: a real-time ecodriving algorithm

Fernández-Rodríguez

Fernández-Cardador

Cucala

2015

2015 IEEE 15th International Conference on Environment and Electrical Engineering (EEEIC)

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The application of ecodriving strategies leads to important energy savings in high speed railway systems. Ecodriving techniques are usually offline implemented in the design of commercial services. However, efficient driving can also be online recalculated to regulate the deviations from the schedule of the train. In this paper, a dynamic multi-objective model is proposed to calculate a set of efficient drivings that are updated during the journey. Using this model it is possible to react when delays arise replacing the current driving by a faster one. The new speed profile will be energy efficient under the new conditions. The model is solved using the extension of NSGA-II for dynamic optimization problems (DNSGA-II). This algorithm is combined with a detailed simulator of the train motion. The accuracy of the simulator ensures the fulfillment of the quality restrictions in commercial services. The proposed method has been applied to a case study using real data from a Spanish high speed line. The performance of DNSGA-II solving the dynamic model has been compared with NSGA-II. Furthermore, energy savings provided by the regulation algorithm have been evaluated comparing it with the typical driving style when a delay is detected.

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Evaluating target speeds of passenger trains in China for energy saving in the effect of different formation scales and traction capacities

Cited by 19 publications

References 27 publications

A Review Study on Traction Energy Saving of Rail Transport

A Review Study on Traction Energy Saving of Rail Transport

Standardised approach to energy consumption calculations for high‐speed rail

Energy efficiency in high speed railway traffic operation: a real-time ecodriving algorithm

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