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China metro energy saving and storage

[PDF] Energy-saving design and implementation in metro weak

In this study we conduct an in-depth research and analysis on metro energy load classification and energy management, focusing in particular on the design and usage of power supply

Hybrid energy storage system and its hardware‐in‐loop platform

Shuifa Singyes Energy (Zhuhai) Company, LTD, Zhuhai, China. Search for more papers by this author. First published: is an effective way to ensure the safety of power supply and realize energy saving in metro by reusing the braking power. Aiming at the optimal configuration and control of the metro hybrid energy storage system (HESS), an

An Integrated Optimization Model for Energy Saving in Metro

An integrated optimization model that incorporates timetable and speed profile optimization is introduced that could reduce the practical energy consumption by 17.5% in comparison with the original timetable. In metro train systems, energy-saving operations can include timetable optimization and speed control. Timetable optimization aims to promote the

Metro timetable optimization for improving regenerative braking energy

Therefore, it is imperative to study the energy-saving optimization of rail transit. At present, the research on energy saving of rail trains includes speed curve optimization and multi-train energy-saving optimization based on RBE utilization (Zhang et al., 2023b; Xing et al., 2023). Under the condition that the running time between stations

Characteristics and assessment of the electricity consumption of

This study offers insights into the electricity usage characteristics and current status of the Tianjin Metro, identifies the most energy-intensive lines, and provides a direction

Characteristics and assessment of the electricity consumption of metro

Generally, between 50% and 70% of the energy use in metros is attributable to traction requirements. 13, 14 To reduce the use of traction energy, many energy-saving technologies were developed, such as regenerative braking, 15, 16 energy storage system, 17 energy-efficient driving, 18 multiobjective optimization of the transportation organization, 19

Characteristics and assessment of the electricity consumption

consume 11.1 billionkWh of electricity in China in 2016.5 Therefore, energy savings in metro systems are urgently needed in this era of energy shortage. 6,7 The energy consumption of metro systems is influenced by a variety of components, such as vehicles, stations, and other infra-structures.8,9 To minimize the system''s energy consump-

An energy performance contracting parameter optimization

Based on the uncertainty in the existing energy-saving renovation process, an optimization framework based on the GBM-RSM to optimize EPC contract parameters is proposed, and a metro energy-saving renovation project in Wuhan, China, is taken as an example. The following conclusions are drawn.

(PDF) An Integrated Energy-Efficient Operation

Characteristics and assessment of the electricity consumption of metro

Owing to the complexity of metros, the energy consumption characteristics of metro systems exhibit variability and the energy‐saving management of the systems encounters challenges.

Joint optimization of delay-recovery and energy-saving in a metro

Joint optimization of delay-recovery and energy-saving in a metro system: A case study from China. Author links open overlay panel Wenxin Li a c, Qiyuan Peng a c, Chao Wen a c, Pengling Wang d, Javad and the National Natural Science Foundation of China [grant number U1834209 and 71871188]. We acknowledge the support of the State Key

REVIEW OF PASSIVE STRATEGIES FOR VENTILATION AND

conditioning energy saving but it was often overlooked due to its high R&D costs. The authors hope that this study can promote the adoption of different passive strategies for the ventilation and air-conditioning energy conservation in underground metro station buildings. Keywords: Underground; Metro station; Energy-saving;

Optimizing Energy Efﬁciency in Metro Systems Under

improve the energy efﬁciency of metro rail transit systems by reducing energy consumption and minimizing delays. By employing advanced control systems and planning tools that can adapt

Research on the cooperative train control method in the

China Academy of Railway Sciences Corporation Limited, Beijing, China Bo Yuan energy-saving performance of the whole metro system cannot be guaranteed. energy storage device usage, train timetable optimisation and cooperative train control optimisation. For cooperative control of multiple trains, research studies mainly focused on

Energy-Saving Metro Train Timetable Optimization Method

The operation of metro trains with a focus on energy savings can effectively reduce operating costs and carbon emissions. Reducing traction energy consumption and increasing the utilization

Moving Forward While Adapting

2018 can be said to be "year one" of energy storage in China, with the market showing signs of tremendous growth. 2019 was a somewhat confusing year for the energy storage industry, but Sungrow''s energy storage business has relied on long-term cultivation and market advancement overseas, and its number of global systems integration

Study on Non-traction Energy Saving Approach in Urban Metro

Data shows that non-traction energy consumption accounts for more than 50% of the total energy consumption of the urban rail transit system in China, which indicates great energy-saving potential．

Real-time train regulation in the metro system with energy storage

In Assumption 2.3, considering the energy loss associated with the storage and extraction of energy in ESDs, if there is a braking train nearby, the accelerating train will prioritize the immediate use of regenerative energy. Such an assumption is widely used in literature on metro storage devices (Liu et al., 2018, Wang et al., 2023).

Hybrid energy storage system and its hardware‐in‐loop platform

Hybrid energy storage technology, which consists of lithium-ion batteries (LiB) and super capacitors (SC), is an effective way to ensure the safety of power supply and realize

Impact of On-Board Hybrid Energy Storage Devices on Energy-Saving

The results reveal that on-board HESDs with a higher capacity does not necessarily lead to a higher energy-saving rate; a lower or excessive initial SOC could undermine the energy-saving potential; considering the long-term train operation, the degradation of the Li-ion battery will influence the energy-saving operation for electric trains, as

Onboard energy storage in rail transport: Review of real applications

Between 2005 and 2016, high-speed rail tracks increased by 187% in Europe, while China has built two thirds of the global high-speed lines after starting with virtually none. America, and Asia at this time. Practical use of such storage devices has shown that energy savings, line voltage stabilization, and catenary-free LRVs operated on

An Integrated Optimization Model for Energy Saving in Metro

In metro train systems, energy-saving operations can include timetable optimization and speed control. Timetable optimization aims to promote the effective util Data were collected from the No. 2 metro line in Nanjing, China; the results showed that the proposed model could reduce the practical energy consumption by 17.5% in comparison with

Real-time optimal train regulation design for metro lines with energy

DOI: 10.1016/j.cie.2018.02.019 Corpus ID: 68245744; Real-time optimal train regulation design for metro lines with energy-saving @article{Zhang2018RealtimeOT, title={Real-time optimal train regulation design for metro lines with energy-saving}, author={Huimin Zhang and Shukai Li and Lixing Yang}, journal={Comput.

(PDF) Energy saving in metro systems: Simultaneous

IOP Conference Series: Materials Science and Engineering, 2019. The feedback-based technical scheme of Metro regenerative braking energy can effectively solve the rapid transfer and comprehensive utilization of regenerative electric energy and can effectively alleviate the reverse impact of regenerative electric energy on traction power supply system.

(PDF) An Integrated Energy-Efficient Operation Methodology for Metro

Energies 13(22), pp. 1-17, 2020. We propose a model for optimising driving speed profiles on metro lines to reduce traction energy consumption. The model optimises the cruising speed to be maintained on each section between two stations; the functions that link the cruising speed to the travel time on the section and the corresponding energy consumption are built using

China metro energy saving and storage [PDF]

3 FAQs about [China metro energy saving and storage]

Are metro systems energy efficient?

Currently, there is a strong demand for an energy-efficient metro system as the city's sustainable development and carbon-neutral requirement. Therefore, this paper presented a generalized framework to evaluate the energy performance of metro systems, and the framework was applied to a case study in Tianjin, China.

Is Tianjin Metro Energy-Saving?

Based on the evaluation results, the overall level of traction electricity consumption of line 5 was the highest and the overall level of station electricity consumption of line 6 was the highest, which indicated the direction for energy-saving work in Tianjin Metro.

How do metro companies allocate energy meter allocation?

In the existing metro companies, in terms of energy meter allocation, typically only secondary meters are installed on the operation lines to measure the power consumption of vehicle traction and power lighting, to monitor the overall energy consumption of station and vehicle traction.

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