A5059747013- HVDC Systems and Fault Protection
- High-Voltage Power Transmission Systems
- Microgrid Control and Optimization
- Power Systems and Renewable Energy
- Islanding Detection in Power Systems
- Advanced DC-DC Converters
- Power System Optimization and Stability
- Real-time simulation and control systems
- Cardiac Structural Anomalies and Repair
- Optimal Power Flow Distribution
- Power Systems Fault Detection
Southeast University
2023-2025
Hunan University of Technology
2019-2021
Offshore wind power through flexible dc transmission system faces the challenge of comprehensively improving transient and steady-state performance. However, existing control strategies often fail to address both simultaneously. This article proposes a coordinated strategy based on hybrid modular multilevel converter that can enhance resilience system. First, coupling relationship between submodule capacitor voltage active is analyzed, virtual capacitance (SVCC) proposed enhances inertia....
The increasing significance of regulating transient energy and efficiently clearing DC short-circuit faults accompanies the rapid growth offshore wind power. To address limitations such as single functionality low device utilization in dissipation devices flexible HVDC transmission systems for power, this paper researches technology regulation reuse, a hybrid chopper topology with fault absorption reuse function is proposed. topology's structure, control strategy, design methodology...
Abstract In recent years, the widespread adoption of wind power has been facilitated by rapid advancements in new energy generation technology. The precise identification and efficient management DC faults onshore farms gained increasing significance. To address issues such as limited functionality, low device utilization, inefficient use fault prevalent current location methods applied flexible grid-connected systems, this study explores storage reuse technology energy. article proposes a...
Aiming at the problems of large frequency fluctuation, poor power supply reliability, and low energy efficiency in operation island microgrid, combining advantages master-slave control peer-to-peer control, a hierarchical based on coordinated grid-forming is proposed. The battery storage system (BESS) fuel cell (FC) are controlled supply, which adopts V/f virtual synchronous generator respectively, other distributed resources (DER) adopt PQ as grid-following supply. In coordination...
Microgrid is an important part of the intelligent power distribution system in future, which great significance for energy saving, emission reduction, and sustainable development. As one effective means distributed generation to connect grid, most renewable connected microgrid by electronic converters, electronics interface micro-source traditional AC synchronous generator are quite different conversion, control strategy, dynamic characteristics. The variety methods high permeability will...
Multi-terminal flexible DC distribution network has become one of the important components future power grid system due to its advantages good controllability and easy access distributed energy. However, it is difficult achieve full control flow in low-voltage network. In this regard, paper uses a bidirectional controller line by changing voltage effective load transfer. Based on research project Jinghu District Shaoxing City, proposes transfer scheme based controller, which improves...
The large high-voltage direct current (HVDC) transmission system, which relies on modular multilevel converters (MMC) as key equipment, is encountering challenging issues such rapid evolution of DC faults, excessive rise, and difficulties in fault isolation network self-healing. To address these concerns, this paper focuses the half-bridge MMC proposes an analog DC-based virtual inductance control (VIC) strategy based mathematical expression reactor. This responds to change line current,...
As people's demands for the environment and future development, new energy sources such as wind energy, solar have become trend of times. At same time, due to introduction clean power electronics switching devices in system are heavily invested network. The investment areas above has made stability suffering more tests, instability oscillation intensified. Therefore, this paper first analyzes mathematical model oscillation. existing causes suppression methods traditional systems summarized.