A5103257059- Combustion and flame dynamics
- Advanced Combustion Engine Technologies
- Fire dynamics and safety research
- High-Voltage Power Transmission Systems
- HVDC Systems and Fault Protection
- Power Systems Fault Detection
- Phase Change Materials Research
- Power Systems and Technologies
- Lightning and Electromagnetic Phenomena
- Image Enhancement Techniques
- Vacuum and Plasma Arcs
- Advanced Manufacturing and Logistics Optimization
- High Entropy Alloys Studies
- COVID-19 diagnosis using AI
- Atmospheric and Environmental Gas Dynamics
- Epoxy Resin Curing Processes
- Asphalt Pavement Performance Evaluation
- Power System Reliability and Maintenance
- Radiative Heat Transfer Studies
- Thermal Analysis in Power Transmission
- Titanium Alloys Microstructure and Properties
- Labor Movements and Unions
- Adsorption and Cooling Systems
- Advanced Thermoelectric Materials and Devices
- Banking Systems and Strategies
Tsinghua University
2020-2024
University of Science and Technology Beijing
2023-2024
Chengdu Women's and Children's Central Hospital
2020
Institute of Geographic Sciences and Natural Resources Research
2020
Chinese Academy of Sciences
2020
Kyiv City Clinical Oncology Center
2019
Northeast Agricultural University
2012
The Brazilian transmission system is facing challenging problems with the distance between its generation areas and consumer centers that will be partly solved by use of HVDC point-to-point systems. In near future, southeast subsystem have a large amount power injected through Systems in multiple points relatively close electrical proximity. Therefore, effects multi-infeed are expected to influence performance operation network. Extensive studies simulations play an important role...
Precise predictions of flame types and autoignition locations jet flames in hot turbulent coflow are crucial for the stable efficient operations many advanced combustors. In order to achieve fast accurate machine learning (ML) based prediction models fuel jets coflow, support vector (SVM) artificial neural network (ANN) two problems, flame-type classification liftoff height regression, were established. The effects hyperparameters on discussed candidates grid search. Furthermore, important...
This paper discusses the models, and results of line energization reclosing, as well insulation coordination for a 1000 kV under study in Brazil. The presented here is sequence to concept description companion paper. means reduce overvoltages such use closing/opening resistors synchronized switching are examined compared. Also, general guidelines definition tower top geometry given terms minimum clearance, risk-of-failure during energization, single-pole three-poles reclosing.
Reversibility of phase transformation, a basic requirement for functional properties shape memory alloys, such as superelasticity, is severely affected by plastic deformation. Here, strain glass has been utilized to improve the reversibility transformation. The incorporation Al into Ti-Zr-Ni-Cu induces and endows alloy with reversible transformation thus ideal superelasticity. In situ x-ray diffraction dynamic mechanical experiments were verify mechanism conversion from plasticity This work...
A 1000 kV system is under viability analysis to transmit the exceeding power from wind plants (WPP) located in Brazilian northeast region. In this article, modeling of for electromagnetic transients and results arc extinction after fault conditions are examined as part an overall line overvoltage insulation coordination study. Some mitigation alternatives such use shunt reactor neutral reactance, fast grounding switches, opening resistors circuit-breakers examined. Other relevant studies...
Autoignition widely exists in combustion devices that feature hot air. The unsteady autoignited flames caused by autoignition are potential hazards to the stable operation of systems, often causing flameout or damage devices. In this paper, we present our recent work understanding key factors determining instability turbulent jet and a novel method suppress flame instability. Firstly, studied using jet-in-hot-coflow burner. behaviors were characterized pressure probe high-speed camera. When...
At present, very few Ultra High Voltage transmission projects (1000 kV or above) were constructed in the world. From these projects, China has some operating at this voltage level showing reportedly a satisfactory performance. The rest of UHV (Ultra Voltage) although designed for such level, are lower voltages. This paper aims reporting main results electromagnetic transients related to fault inception and its clearing, as well load rejection phenomenon 1000 line proposed be Brazil....
In order to explore the feasibility of application virtual technical platform, At moment, mechanical & electrical equipment was used rolling indicator.It is studied control graphic display on DSP graphics processing technology, combined with sensor signal, level indicating shall be putted into effect.Building development platform as core DAM6416P, Research analysis line generating algorithm and match corresponding colors for graphics.On this basis, apply bresenham digital signal that tilt...
The stability of interconnected large power systems - like the Brazilian National Grid (SIN) is directly compromised by weakly or not damped low frequency oscillations and transitory oscillations, these latter originated from contingencies. In order to identify control system oscillation modes efficiently, dynamic behavior various wide areas, it becomes necessary synchrophasor measurement techniques for real time observability control, essential requirements which plays a key role in area...