Modeling, Controlling and Protecting of the Vehicle-Grid System in Electrified Railways

Dear Colleagues,

Electrified railways are an efficient, safe, environmental-friendly, and energy-saving way of transportation. In recent decades, they have gained remarkable achievements in developing both the economy and society. Nowadays, more and more electrified trains are taken into service and interacting with the traction power grid, resulting in a complex vehicle–grid system with a higher risk of instability and fault. On the one hand, the interaction between the traction power supply grid and the electrical multiple units may cause a harmonic instability problem or low-frequency oscillation, which could lead to the shutdown of the traction power in the vehicles. On the other hand, the components of the electrified railway suffer heavy loads and harsh operating environments, making them prone to failure and affecting the normal operation of the train. Consequently, ensuring a stable and reliable operation of the electrified railway is of paramount importance. This requires an accurate model, high-performance control, and reliable protection methods for every aspect of the vehicle–grid system.

This Special Issue aims to present recent results and new research directions in modelling, controlling, and protection methods for vehicle–grid systems in electrified railways.

Topics of interest for publication include, but are not limited to:

• Modelling of the vehicle–grid system;
• Nonlinear analysis of the vehicle–grid system;
• Harmonic instability analysis and mitigation in the vehicle–grid system;
• Stability and power quality issues in the vehicle–grid system;
• Advanced control strategy of traction drive systems and traction power supply systems;
• Multi-objective optimization of high-power density traction converters;
• Protecting methods of traction power supply systems;
• Fault diagnosis methods of traction drive systems and traction power supply systems;
• Fault-tolerant control methods of traction drive systems and traction power supply systems;
• New fault-tolerant topology of traction drive systems and traction power supply systems;
• Reliability issues of components in vehicle–grid systems;

Condition monitoring and RUL prediction of components in vehicle–grid systems.

Prof. Dr. Zhigang Liu
Dr. Keting Hu
Dr. Yicheng Liao
Dr. Fangyuan Li
Dr. He Du
Dr. Zheming Jin
Guest Editors

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•  electrified railways
•  vehicle–grid system
•  nonlinear analysis
•  stability and power quality
•  fault diagnosis and fault tolerance
•  reliability
•  condition monitoring
•  PHM