Results 11 to 20 of about 93,761 (314)

AC-drive System of the Intercity EMUs

open access: yes机车电传动, 2015
The design principle of the AC drive system in the intercity EMUs was expounded, emphasis on the key technology such the structure, the working principle and the technical characteristics, which pointed out that the integrative convertor of the AC drive ...
ZHANG Zhibing   +2 more
doaj   +2 more sources

Study on EMC of High Power AC Drive Electric Locomotive

open access: yes机车电传动, 2011
This paper briefly introduced the EMC requirements of AC drive electric locomotive made in China and basic method of achieving EMC. The EMC technical specification was made and implemented whith was effective and feasible through local test of 7 200 kW ...
王益民, 余定华, 蔡万银
doaj   +2 more sources

Data Acquisition System for AC-drive Test Based on LabVIEW

open access: yes机车电传动, 2011
This paper introduced the hardware structure and the software design of data acquisition system for AC-drive test based on LabVIEW and proposed a method to realize high-speed continuous data storage and data preprocess in LabVIEW.
蒋骊湘, 陈高华, 刘护林
doaj   +2 more sources

DMU Electric Drive Control System for Exporting Iraq

open access: yes机车电传动, 2015
The main components and control object of DMU electric drive control system for exporting Iraq were introduced. The AC-DC main drive system, auxiliary AC drive system, battery charger system and their adaptive design were discussed in detail. Application
ZHOU Shaoyun, LI Xudong, LIU Songbai
doaj   +2 more sources

Methods of synchronization of electric drives not mechanically connected [PDF]

open access: yesОмский научный вестник, 2021
The article provides a comparative analysis of the structures of synchronization of the motion of electric drives of medium and high power. A comparison of synchronization structures is made in terms of the impact on the final operation of the system
A. E. Bychkov   +2 more
doaj   +1 more source

Dynamic Influence of Wheel Flat on Fatigue Life of the Traction Motor Bearing in Vibration Environment of a Locomotive

open access: yesEnergies, 2021
Wheel flat can cause a large impact between the wheel and rail and excites a forced vibration in the locomotive and track structure systems. The working conditions and fatigue life of the motor bearings are significantly affected by the intensified wheel–
Bingbin Guo   +4 more
doaj   +1 more source

Characteristic example of insulation coordination in power converters [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2021
Power electronics devices and modules that are most often used in power supply systems when compared to the passive components usually exhibit a very poor ability to withstand surge voltages.
Despotović Željko V.
doaj   +1 more source

Multiobjective Optimization and Weight Selection Method for Heavy Haul Trains Trajectory

open access: yesIEEE Access, 2022
Energy-saving, punctuality and smoothness are difficult to achieve in the operation of heavy haul train. This paper proposes a multi-objective method for speed curve optimization.
Wang Li, Senhao Jiang, Miaoxin Jin
doaj   +1 more source

Research on Air Supply Volume and Temperature Control of Subway Trains Based on Passenger Capacity

open access: yesAtmosphere, 2023
There is currently no way for subway air-conditioning systems to adjust to changes in passenger capacity in terms of air-supply volume and air-supply temperature.
Zhiyuan Liu   +6 more
doaj   +1 more source

Multi-Objective Aerodynamic Optimization of a High-Speed Train Head Shape Based on an Optimal Kriging Model [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
An optimal Kriging surrogate model based on a 5-fold cross-validation method and improved artificial fish swarm optimization is developed for improving the aerodynamic optimization efficiency of a high-speed train running in the open air.
Y. Yang, Z. He, Z. Shi, X. H. Xiong
doaj   +1 more source

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