34 citations · 121 across the 8 of their papers we have counts for
8 papers · 1 filter
Multiple Vehicles and Traction Network Interaction System Stability Analysis and Oscillation Responsibility Identification
Xiangyu Meng, Qiao Zhang, Zhigang Liu +3
The electrical incompatibility between vehicles and traction network in railway system can result in system instability and oscillation overvoltage issues. To analyze the system st…
Neural Network-Based Impedance Identification and Stability Analysis for Double-Sided Feeding Railway Systems
Xiangyu Meng, Guiyang Hu, Zhigang Liu +4
The double-sided power supply railway system increases the simultaneous operation of vehicles on the grid, potentially causing system instability and oscillation overvoltage issues…
A Flow Model for the Electrified Railway-Power Grid Hybrid Asymmetric Coupled System and its Linearized Method
Qiao Zhang, Zhigang Liu, Shibin Gao +6
In mountainous regions where traction loads constitute a significant portion of a long-chain weak power grid (PG) with sustainable energy, the interaction between the traction powe…
An Improved Deep Reinforcement Learning Control Strategy for Traction Dual Rectifiers in EMUs
Zhigang Liu, Mingwei Tang, Xiangyu Meng +4
Due to the use of PI-based d q current decoupling in the pulse rectifier of CRH5 high-speed trains, the PI parameters directly affect the traction system's control performance. Lin…
A Multi-Frequency Input-Admittance Model of Locomotive Rectifier Considering PWM Sideband Harmonic Coupling in Electrical Railways
Xiangyu Meng, Zhigang Liu, Guorong Li +3
Electrical railway harmonic instability issues are common in the high-frequency range. The effective frequency of the traditional converter's small-signal averaging model is below…
Dissipativity-Based Multiport Stability Root-Cause Identification and Mitigation for Solid-State Transformers
Xiangyu Meng, Dong Xie, Hongjian Lin +3
For solid-state transformers (SSTs) in high-power grid-connected applications, improperly designed control loops can excite strong inherent AC-DC port coupling, leading to low-freq…
A Physics-Informed Neural Network for Small-Signal Stability in Multi-Inverter Power Systems
Hanxi Chen, Xiangyu Meng, Jianhong Wang +1
The whole-system impedance model has proven a powerful tool for assessing the small-signal stability of multi-inverter power systems; however, its application is limited to a small…
Stability and Droop Characteristics Analysis of Observer-Synchronized Grid-Forming Control
Aizuo Chen, Xiangyu Meng, Yue Zhu
This paper analyzes the stability and droop characteristics of Observer-Synchronized grid-forming control. First, a second-order nonlinear autonomous model is derived under the qua…