In some studies using energy saving strategies in the literature; Chuang et al. calculated the optimal coasting speed of the train in order to minimize both the energy consumption and travel time ...
Learn MoreDesign/methodology/approach. Based on the analysis for the future development trends of world railway, combined with the actual development needs in China high-speed railway, The definition and scientific connotation of intelligent high-speed railway (IHSR) are given at first, and then the system architecture of IHSR are outlined, …
Learn MoreTraction Power Substations (SS) – An electrical installation where power is received at high voltage and transformed to the voltage and characteristics required at the catenary and negative feeders for the nominal 2x25 kV system, containing equipment such as transformers, circuit breakers and sectionalizing switches.
Learn Morebackflow arise is near the big station. Because many train must speed down near the big station. 3.3. Equipment for utilizing regenerative energy The reason why the regenerative energy flows backwards from the feeder line to the grid is absence of running rail
Learn MoreFirstly, the present status of regenerative energy utilization without RPC in traction power system of high speed railway called Tohoku Shinkansen Line was measured and investigated in detail. Based on the measured data, the optimal specifications, required for RPC and battery for regenerative energy utilization, were calculated by linear …
Learn MoreThe high-energy device can be used as an energy supplier to meet long-term energy needs, while the high-power device can be used as a power supplier to …
Learn More67 1. Introduction In rail systems, there are two energy storage types according to storage location; one is on the vehicle (on-board energy storage) and the other is on the wayside. If the two ...
Learn MoreIn this paper, a hybrid energy storage system (HESS) composed of supercapacitors and lithium-ion batteries and its optimal configuration method are proposed for the purpose of obtaining maximum …
Learn MoreIt forms a fully functional 2x25 kV ac traction power supply and distribution system and provides the traction power to the electrically powered vehicles on the high-speed railway line. The Traction Power Supply System (TPS) is based upon a 50 hz, 2x25 kilovolt (kV) autotransformer feed configuration.
Learn MoreHitachi has responded by focusing on a stationary energy storage system with an emergency train travel function. During a power failure, the stationary energy storage system uses power stored in lithium-ion …
Learn MoreOn the other hand, innovative paradigms for the supply system, such as inductive power transfer technology, will unfold …
Learn Moreenergy supply mode of a modern railway station located in southern China was analyzed with the results showing that the railway station could be powered by a combination of
Learn More2. Higher embodiment of Rail Transit Intelligent Technology. Take the high-speed rail as an example. In the future, passengers will not only experience safe and reliable intelligent travel, but …
Learn MoreIn the current railway power systems, the dramatic stochastic volatility of traction loads and the harsh requirements for overload capacity of traction transformers result in the …
Learn MoreThis paper investigates the potential, integrated scenarios, and application case of the solar-powered rail transportation in China. In the rail sector itself, there is much available space alongside railways, including the covered land and trackside land. It is calculated that in rail sector, the total available solar energy reaches as much as ...
Learn MoreThe Chinese railway industry will be encouraged to reach its high-quality and sustainable development goal by seizing the opportunity presented by the evolution …
Learn MoreOn 30 December 2019, a new Chinese high-speed train (also known as the Beijing-Zhangjiakou railway line) was operated at speeds of up to 350 kph, and is widely recognized as the world''s first driverless train . The train can automatically depart, operate between stations and adjust its operation status to meet the precise timetable without ...
Learn MoreHigh-speed rail transportation utilizes 80–90% less energy and produces 3–4 times less pollution than air travel [30]. The goal of achieving net-zero global CO 2 emissions by 2050 must now be maintained by ensuring that the 2021 global emissions recovery was an anomaly and that sustainable investments paired with increased clean …
Learn MoreStorage is an increasingly important component of electricity grids and will play a critical role in maintaining reliability. Here the authors explore the potential role that rail-based mobile ...
Learn MoreSymbol Variable Observation Mean S.D. Min Med Max UI industrial upgrading 4560 0.913 0.510 0.094 0.802 9.482 HSR High-speed railway opening 4560 0.297 0.457 0.000 0.000 1.000 NS Network Status 4560 0.131 0.799 0.000 0.000 14.834 pgdp Economic scale
Learn MoreResults show that the energy consumption of the high-speed railway station is between 117–470 kWh/(m2·a). The energy consumption of the station is related to the area and the passenger flow.
Learn MoreRegenerative braking energy (RBE) will be generated when high-speed train is in braking state, but the utilization rate of RBE is generally low. To solve this problem, based on the hybrid energy storage system (HESS), a scheme for energy storing and utilizing high-speed train RBE is proposed.
Learn MoreThe efficiency of the system increases by around 6% and the switch to 9kV is forecast to generate an energy saving of 2GWh a year per 100km of track, equivalent to around €150,000 annually. Superconducting cables are another traction innovation under evaluation in France.
Learn MoreRequest PDF | On Oct 1, 2023, Hongxiang Zhang and others published A multi-agent simulation based train platforming research for facilitating passenger transfer in a high-speed railway station ...
Learn MoreIn recent years, with the rapid development of high-speed railways (HSRs), power interruptions or disturbances in traction power supply systems have become increasingly dangerous. However, it is often impossible to detect these faults immediately through single-point monitoring or collecting data after accidents. To coordinate the power …
Learn MoreIn this paper, based on the interconnection of 10kV station power system and 27.5 kV traction power system, a hybrid energy storage system (HESS) composed of supercapacitors (SCs) and batteries is ...
Learn More1.1 High-Speed Railway Hybrid Energy Storage System Topology. High-speed railway hybrid energy storage systems usually adopt a centralized arrangement, and the basic topology of it is shown in Fig. 1. The HESS is placed in the traction substation to collect and use the regenerative braking energy on the two power supply arms . The …
Learn MoreEthiopia-Djibouti ''s 753 km rail line, powered by hydro-generated electricity, started operating in 2016 and is the first modern electrified railway in East Africa, bringing economic growth and taking tonne-kilometres off the road. 1Considering high-speed train''s commercial speed of 200 km/h and above. For IEA modelling purposes, a high-speed ...
Learn MoreTo address the problem that the current single weighting method cannot take into account the subjective and objective weight information, which makes the weights biased easily, and the influence of the overlapping level of indicator information on the evaluation results is not considered. AHPimproved CRITIC method is proposed to find the …
Learn MoreTo solve the negative sequence (NS) problem and enhance the regenerative braking energy (RBE) utilisation in an electrified railway, a novel energy storage traction power supply system …
Learn MoreThe work of this article is an extension of [18] and [19], 151 which only dealt with the optimal train operation with OESD 152 limited in journeys with single or a few interstation sections in 153 ...
Learn Moreing energy generated by high-speed railway can be recycled by a HESS consisting of traditional batteries and supercapacitors. In [ 18 ], the author attempted to integrate PV, wind power, and
Learn MoreSource: making full use of the power generation system composed of wind, light, water and other renewable energy sources along the rail transit line to provide electric power for the rail transit. Electric grid: the external power system grid or internal self-consistent microgrid system that can be used for railway transportation under both on …
Learn MoreAbstract. Advanced Rail Energy Storage (ARES) has developed a breakthrough gravity-based technology that will permit the global electric grid to move effectively, reliably, and cleanly assimilate renewable energy and provide significant stability to the grid. ARES stores energy by raising the elevation of mass against the force of …
Learn MoreWith the continuous expansion of high-speed railway network, the high energy consumption and low utilization rate of locomotive regenerative braking energy are becoming increasingly prominent. According to statistics [], the regenerative braking energy can reach more than 20% of the total traction energy when the train is running in the …
Learn MoreThe optimization of the train speed trajectory and the traction power supply system (TPSS) with hybrid energy storage devices (HESDs) has significant potential to reduce electrical energy consumption (EEC). However, some existing studies have focused predominantly on optimizing these components independently and have ignored the goal …
Learn More