Results 11 to 20 of about 15,688,249 (252)
Impact of Ground Current of HVDC Earth Electrode on High-speed EMU
机车电传动, 2021 During the operation of HVDC system with the earth as the loop, the formed current field in the ground has corrosion effect on the adjacent high-speed railway system.
Jie WU +4 more
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400 km/h Transnational Interconnection High-speed EMU
机车电传动, 2020 Based on the top-level operation requirements and project objectives, the overall technical innovation objectives, technical characteristics, technical difficulties, technical route and overall technical scheme of developing 400 km/h transnational ...
Changqing LIU, Lei WANG
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Parallel Control of Auxiliary Inverters for High-Speed EMU
Kongzhi Yu Xinxi Jishu, 2014 The control strategy of parallel inverters was analyzed and implemented with the background of high-speed EMU program. By calculating positive power and negative power, output voltage and frequency of auxiliary inverters were controlled with the PQ droop
WEI Kai, ZHANG Zhixue, SHANG Jing
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Analysis and Solution of Electromagnetic Emission of High-speed EMU
机车电传动, 2020 In order to solve the problem of electromagnetic emission problem of high-speed EMU in the fixed frequency band during the type test, the electrical principle system of vehicle traction drive system was decomposed.
Nan JIA, Qiumin ZHANG
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Optimization of Multi-Day Flexible EMU Routing Plan for High-Speed Rail Networks
Applied SciencesWith the continuous expansion and increasing operational complexity of high-speed railway networks, there is a growing need for more flexible and efficient EMU (Electric Multiple Unit) routing strategies.
Xiangyu Su +3 more
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Multi-objective aerodynamic optimization design of high-speed maglev train nose [PDF]
Railway Sciences, 2022 Purpose – The nose length is the key design parameter affecting the aerodynamic performance of high-speed maglev train, and the horizontal profile has a significant impact on the aerodynamic lift of the leading and trailing cars Hence, the study analyzes
Shuanbao Yao, Dawei Chen, Sansan Ding
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INFLUENCE OF WHEEL POLYGON ON DYNAMIC PERFORMANCE OF HIGH SPEED EMU
Jixie qiangdu, 2020 With the continuous improvement of the running speed of the EMU,the wear of the wheels during the operation is intensified,which increases the maintenance cost and deteriorates the service environment of the train.
ZHANG JieJuan +5 more
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Metals, 2022 Microstructures and mechanical properties of Al-5Zn-2.6Mg alloys with 0.24, 0.43, and 0.91 wt.% Cu were studied and the precipitation rate and activation energy at 378, 393, and 408 K were calculated using the Arrhenius equation in this work.
Aiqin Tian +3 more
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Investigation on the fluid-solid coupling effect in high-speed train’s windshield structure
Alexandria Engineering Journal, 2023 The high-speed train’s windshield structure is vital to the boundary layer development and drag reduction design. Up to date, windshield structures are assumed as rigid body in most train aerodynamic numerical simulations.
Jiangchuan Ma +7 more
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Study on the technologies development trend of high speed EMUs
High-speed Railway, 2023 High speed railway technologies are rapidly development in the world. The total distance of the high speed railway is more than 40,000 kilometers in China, and many types of high speed Electrical Multi-Units (EMUs) are operated. The top operation velocity of the train reaches 350 km/h. New science and technologies are developing rapidly. New generation
Chunfang Lu, Zunsong Ren, Chengxian Ma
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