A5100439364- Power Systems and Renewable Energy
- HVDC Systems and Fault Protection
- Power System Optimization and Stability
- High-Voltage Power Transmission Systems
- Laser-induced spectroscopy and plasma
- Analytical chemistry methods development
- Mercury impact and mitigation studies
- Electrochemical sensors and biosensors
- Combustion and Detonation Processes
- Fire dynamics and safety research
- Wind Turbine Control Systems
- Power Systems and Technologies
- Electric Motor Design and Analysis
- Combustion and flame dynamics
- Vibration and Dynamic Analysis
- Advanced Algorithms and Applications
- Advanced Battery Technologies Research
- Conducting polymers and applications
- Graphene research and applications
- Perovskite Materials and Applications
- Power Systems Fault Detection
- Magnetic Properties and Applications
- Electric Vehicles and Infrastructure
- Advancements in Battery Materials
- Photonic and Optical Devices
National Center for Nanoscience and Technology
2025
University of Chinese Academy of Sciences
2025
Qingdao Institute of Bioenergy and Bioprocess Technology
2024
Chinese Academy of Sciences
2024
Qinghai New Energy (China)
2024
Anhui University of Technology
2023
Xi'an Jiaotong University
2014-2023
Beijing Institute of Technology
2023
North China Electric Power University
2012-2022
The Ohio State University
2022
A synchronous condenser (SC) can provide the reactive power for Ultra High Voltage Direct Current (UHVDC) converter station to keep voltage stability and prevent commutation failure. The single-phase short circuit at a transmission line is prevalent it result in not only drop but also increase of rotor loss temperature SC. In order study ability SC withstand short-circuit fault, field 300-MVar are studied by coupling electromagnetic models with electric grid. distributions core slot wedges...
The existing technique of fault state recognition for adaptive single-phase reclosure is severely impacted by the transient beat frequency oscillations after secondary arc being extinguished in a shunt-reactance compensated line, due to resonance between equivalent capacitors and compensating inductors. characters phase terminal voltage neutral small reactance are analysed, differences two states at recovery stage compared. Considering that there some misjudged zones caused oscillation on...
In order to study the effect of rotor damping structure comprised slot wedges and core on dynamic characteristic dual-excited synchronous generator (DESG) with power tracking excitation control (PTEC), field-circuit coupled time-stepping finite element model is established by combining 2-D transient electromagnetic stator circuit equations. With a 300-MW DESG as an example, indices, such amplitude duration speed oscillation, are compared in terms separate combined effects PTEC. The different...
Abstract The Dual‐Excited Synchronous Generator (DESG) has two sets of field windings. magnitudes and directions the currents can be regulated, so that excitation magneto‐motive force in any direction. electromagnetic characteristics DESG may different with those Traditional (TSG) for rotor structures generators. To obtain better characteristics, a time‐stepping finite element model (T‐S FEM) is established. air‐gap radial flux density, saturation, active reactive power single‐ dual‐axis...
Inspired by spatial arrangement of lotus leaves, chemically bonded Ni<sub>3</sub>Ge<sub>2</sub>O<sub>5</sub>(OH)<sub>4</sub>/RGO hybrid with this unique architecture exhibits excellent specific capacity.
Accurate measurement of trace heavy metal mercury (Hg) in flue gas coal-fired units is great significance for ecological and environmental protection. Mixed was used to simulate the actual a power plant this study. A laser-induced breakdown spectroscopy (LIBS) system Hg mixed built study effect pressure, concentration delay time on measurement. The experimental results show that appropriate low pressure can obtain high signal intensity noise ratio. ratio increased with increase gas....
Asynchronous operation of a turbo generator after the loss field caused by excitation fault can avoid large-scale blackout and, therefore, improve reliability power systems. In order to consume magnetic energy stored in winding as soon possible, discharge resistor (FDR) is often connected fault, but it may affect asynchronous operating ability and result overvoltage winding. study influence FDR on generator, field-circuit coupled time-stepping finite-element model established, experimental...
A multi-function superconducting device is proposed in this paper, which can act as a fault current limiter and SMES to two unattached AC systems respectively effectively. This combined equipment SMES-SFCL mainly consisted of diodes, DC/AC converter, control circuit coil. The coil made Nb-Ti the 150 kVA/0.3 MJ. topology shown simulation results by PSCAD are presented. It turns out be that what we expected. Some problems needed considered carefully future research discussed at end paper.
A novel chemiluminescent probe, copper(II)−Alizarin Red S (ARS) complex, for the detection of human serum proteins after polyacrylamide gel electrophoresis (PAGE) is described. The based on binding copper(II)−ARS complex to and catalytic activity copper(II) in luminol−hydrogen peroxide chemiluminescence (CL) system. Various are directly detected gels, avoiding tedious transferring procedures. In present study, possible reaction mechanism sensitivity evaluation analyzed. experimental...
A dual-excited synchronous generator (DESG) with two field windings on the rotor has better dynamic characteristics and high stability. However, realization of function needs a reasonable excitation control strategy. In this article, power tracking (PTEC) is proposed to improve operating performances DESG. The processes 300-MW DESG PTEC are calculated after disturbance torque reactive by time-stepping finite element model, results superior those adopting traditional dual-channel control. To...
In order to improve the prediction accuracy of rooftop photovoltaic (PV) power, a PV power method based on data reconstruction and complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN) is proposed, taking into account lack power. Firstly, relationship between adjacent centralized established daily generation reconstruct Subsequently, considering difference in performance PV, relative efficiency defined correct reconstructed value. Finally, model CEEMDAN long short-term...
A multi-function superconducting equipment SMES-SFCL is proposed in this paper. It mainly consists of diodes, power condition system, control circuit and a coil. Its topology also presented the Proved by previous simulation experiment, combined device can work as SMES or SFCL separately effectively. Further research on performance when it fulfills two functions simultaneously Control strategy based multi-object optimization adopted, which proved to be applicable MATLAB. At end paper, authors...
Dual-Excited Synchronous Generator (DESG) has two field windings on the rotor. The magnitude and direction of excitation magneto-motive force (mmf) can be changed by regulating ratio currents. This characteristic improve power system stability relieve transient overvoltage. However, realization functions needs a reasonable control system. In order to operating performances DESG, it is proposed tracking strategy (PTECS) which performed incomplete differential active power, reactive current....