A5100353938- Electrical Contact Performance and Analysis
- Railway Systems and Energy Efficiency
- Electromagnetic Compatibility and Noise Suppression
- Railway Engineering and Dynamics
- Lightning and Electromagnetic Phenomena
- Soil Mechanics and Vehicle Dynamics
- High-Voltage Power Transmission Systems
- Adhesion, Friction, and Surface Interactions
- Cellular Automata and Applications
- Power Systems and Technologies
- Magnetic Properties and Applications
- Cooperative Communication and Network Coding
- Numerical methods in engineering
- MXene and MAX Phase Materials
- Vehicle Dynamics and Control Systems
- Fatigue and fracture mechanics
- Mechanical Engineering and Vibrations Research
- Wireless Communication Security Techniques
- Power Quality and Harmonics
- Fluid Dynamics Simulations and Interactions
- Electrostatic Discharge in Electronics
Hunan University
2023
Southwest Jiaotong University
2012-2022
Civil Aviation Administration of China
2020
Xidian University
2017
The proliferation of the voltage-source converter-based high-speed trains has resulted in significant distortions voltage and current waveforms both traction power supply system utility system. dynamic behaviors (HSTs) make assessment such power-quality (PQ) problems quite difficult. There is an urgent need for techniques that can quantify collective PQ impacts modern during a 24-h period. Dynamic behavior modeling operating duty period between two station stops studied here assessment....
Harmonic pollution of the traction power-supply system (TPSS) has become a vital concern for its adverse impacts on tractive drive train and power-quality issues TPSS connected power system. modeling is precondition to evaluate harmonic TPSS. This paper systematically discusses main sources in as well their characteristics based accurate field measurements. Moreover, background voltage utility are compartmentalized modeled with consideration stochastic statistical features. studies time...
Based on the analysis of practical measurement data H-field values at three different sites along longitudinal direction railway, this paper proposes an aerial catenary nonuniform transmission line model to predict propagation characteristic pantograph arcing electromagnetic (EM). According theory EM field, emission field value measured articulated neutral section (ANS) site is converted into initial current contact wire. With current, distribution wire and railway when slid ANS could be...
There are two cases that can cause cable overvoltage in a high-speed electric multiple units (EMU) system: one is the seriously rusty rail; other pantograph arcing, especially when train passes through phase separations. Both endanger normal operation of EMU. In this paper, full analysis given on mechanism electromagnetic interference, corresponding to conducted and radiated interference. First, actual circumstances which kinds interferences generate described equivalent circuit model...
To suppress both the steepness and amplitudes of cable sheath current induced by an incident high-altitude nuclear-burst electromagnetic pulse, this paper adopts a suppressing method that uses ferrite magnetic rings installed on shielded cable. Taking into account material characteristics rings, nonuniform transmission-line model is presented in frequency domain for evaluating effect using inverse fast Fourier transform, terminal response time can be obtained. First, impact ring cluster...
This study does research on resonance and harmonic transmission problems in a new continuous cable traction power supply system (CCTPSS), CCTPSS can realise long‐distance co‐phase effectively reduce phase separation is applicable for extended areas with the weak grid. Firstly, structure introduced, network divided into three kinds of subnets its complicated topology huge scale. The equivalent circuit model mathematical each subnet are established distribution parameters, especially...
The electromagnetic interference caused by electrified high-speed railway (HSR) through the protection areas of nondirectional beacon (NDB) is an important issue, especially when train passes neutral section (NS). In this article, based on theory multisection transmission line and considering complex factors, calculation method medium-frequency current emission (EME) contact wire (CW) NS given. radiation properties CW were studied quantitatively its validity was verified practical...
Recently, the finite state Markov channel (FSMC) with an additional eavesdropper and delayed feedback from legitimate receiver to transmitter has been shown be a useful model for physical layer security of practical mobile wireless communication systems. In this paper, we extend multiple-access situation (up-link systems), which call wiretap (FS-MAC-WT) feedback. To specific, FS-MAC-WT is two inputs (transmitters) outputs (a eavesdropper). The depends on undergoes process, entirely known by...