A5053841123- Hybrid Renewable Energy Systems
- Power Systems and Renewable Energy
- Microgrid Control and Optimization
- Integrated Energy Systems Optimization
- Vibration and Dynamic Analysis
- Membrane-based Ion Separation Techniques
- Advanced Battery Technologies Research
- Fuel Cells and Related Materials
- High-Voltage Power Transmission Systems
- HVDC Systems and Fault Protection
Sichuan University
2024
China Southern Power Grid (China)
2022-2023
An emerging approach for large-scale hydrogen production using renewable energy is to integrate multiple alkaline water electrolysis (AWE) stacks into a single balance of plant (BoP) system, sharing components such as gas-lye separation and lye circulation. This configuration, termed the $N$-in-1 AWE packs $N$ modular reducing land requirements, complexity topology, overall capital costs. However, coupling these through shared BoP introduces challenges in dynamic operation under varying...
Utility-scale renewable power-to-hydrogen (ReP2H) systems typically consist of multiple electrolyzers (ELZs), many which are powered by thyristor rectifiers (TRs). A TR-powered ELZ has a nonlinear and nondecouplable relation between its active reactive loads. The on-off switching load allocation across ELZs impact the efficiency P2H energy conversion power flows in electrical network. Improper scheduling may result an excessive from hydrogen plant, causing voltage violations increased...
In the energy management of renewable power-to-hydrogen (ReP2H) systems, it is crucial to quantify flexibility alkaline electrolyzers (AELs) respond fast load adjustment commands and maintain balance across various timescales. However, AELs subject electrochemical, dynamic heat transfer, mass transfer constraints, making them very different, both physically mathematically, from conventional power system resources such as storage (ES) electrical vehicles (EVs). Additionally, in large hydrogen...
Multiple large thermal power plants with different torsional frequencies can be successively built around the HVDC converter station, where complex interactions may exist among shafts of multiple or between and system. For stability analysis single plant shaft considered, commonly used torque coefficient method has been proven to effective, but hardly applied multi-machine scenarios concerned. Focusing on sub-synchronous plants, this paper presents an impedance model equivalently...
Near-fundamental-frequency oscillation (NFFO) events were observed in a renewable energy system (RES) connected to four-terminal direct current (MTDC) grid China, which has the world's largest DC transmission network. The sending terminal of MTDC includes various converter-interfaced generators, such as permanent magnetic synchronous generator (PMSG), doubly-fed induction (DFIG), and photovoltaic (PV). phenomenon is unique since NFFO frequencies 44 Hz 56 are relatively close fundamental...