A5076771535- Microgrid Control and Optimization
- Real-time simulation and control systems
- HVDC Systems and Fault Protection
- Electrostatic Discharge in Electronics
- Power Systems Fault Detection
- Power System Optimization and Stability
- Advanced Decision-Making Techniques
- High-Voltage Power Transmission Systems
- Industrial Vision Systems and Defect Detection
- Advanced Measurement and Detection Methods
- Advanced Computational Techniques and Applications
- Lightning and Electromagnetic Phenomena
- Optimal Power Flow Distribution
- Power System Reliability and Maintenance
- Electromagnetic Compatibility and Noise Suppression
Tsinghua University
2020-2024
As an essential part of modern power systems, electronics have improved system performance. They also brought new dynamic and transient problems posed significant challenges to precise efficient simulation. Traditional modeling solving methods fail balance between the simulation accuracy efficiency, they are not flexible enough adapt converters with various topologies. This article proposed a widely applicable method based on unit switching circuit that greatly promote efficiency simplicity...
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Abstract This paper explores the impulse equivalent method for constructing voltage source converter (VSC) model in large power grids containing multiple converters. It addresses challenge of simulation cycle mismatch with device switching moments and proposes a cross-cycle correction method. The enhances VSC electromagnetic transient (EMT) model, making it suitable large-scale grid simulations. approach is validated through case studies, confirming its accuracy computational efficiency...
Abstract The simulation models of the 500kV gas-insulated transmission lines (GIL) and substation (GIS) systems in a realistic nuclear plant are presented paper. Very Fast Transient Overvoltage (VFTO) which is generated during switching operations, analyzed. Some affecting factors on level VFTO investigated. These location power source, entrance capacitance potential transformer (PT), capacitive voltage (CVT). At last, some suggestions overvoltage calculations or electromagnetic interference...
Aiming at the low accuracy of Fault Diagnosis (FuDg) methods used in Intelligent Substation Secondary System Communication Network (ISSSCN), a FuDg method ISSSCN based on improved Time Convolution (TCN) is proposed. Firstly, overall structure and mathematical description fault signal are analyzed. Secondly, basic model for f built TCN including Extended Causal (ECC) ResNet. Finally, optimized by Hybrid Attention Mechanism (H-AM) channel spatial attention, which greatly improves FuDg. The...
The DC transmission, distribution and networking have been applied to medium low voltage power grids, exhibited apparent advantages favorable application perspective. Different from traditional AC grids shown features of inertia, weak damping the inclination oscillation. intermix fast switching transients control dynamics makes grid much more complicated. In addition, fluctuation renewable energy generation demand-response loads imposes difficulties on stable smooth running grid. However, no...