Energies, 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
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Methods of synchronization of electric drives not mechanically connected [PDF]
Омский 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
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Multiobjective Optimization and Weight Selection Method for Heavy Haul Trains Trajectory
IEEE 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
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Characteristic example of insulation coordination in power converters [PDF]
Zbornik 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.
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Research on Air Supply Volume and Temperature Control of Subway Trains Based on Passenger Capacity
Atmosphere, 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
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Multi-Objective Aerodynamic Optimization of a High-Speed Train Head Shape Based on an Optimal Kriging Model [PDF]
Journal 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
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Feedforward-loop phase-locked loop based estimation scheme for sensorless IPMSM drive system
e-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023 The existence of mechanical speed sensors brings challenges of system reliability. Therefore, drives without speed and position sensors attract much popularity in interior permanent-magnet synchronous motor (IPMSM) drive system. This paper provides a new
Wang Li, Jixiong Jiang, Junwen Mu
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Discussion on “AC Drive Observability Analysis” [PDF]
IEEE Transactions on Industrial Electronics, 2015 In the paper by Vaclavek et al. (IEEE Trans. Ind. Electron., vol. 60, no. 8, pp. 3047-3059, Aug. 2013), the local observability of both induction machine and permanent-magnet synchronous machine (PMSM) under motion-sensorless operation is studied. In this letter, the "slowly varying" speed assumption is discussed, and the PMSM observability condition ...
Koteich, Mohamad +3 more
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Transformer-Based Power Conversion System with Synchronous Adjustment of Modulated Inverters [PDF]
Problems of the Regional Energetics, 2018 Purpose of this work – dissemination of specialized schemes of space-vector modulation for synchronous adjustment of multi-inverter system with power transformer.
Oleschuk V.
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Evaluation Model of Loop Stray Parameters for Energy Storage Converter of Hybrid Electric Locomotive
IEEE Access, 2020 When the silicon carbide (SiC) power module is applied to the energy storage converter of a hybrid locomotive, under the action of di/dt and loop stray inductance, it is easy to produce excessively high voltage overshoot, which affects the battery life ...
Yunxin Fan +6 more
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