A5006503706- Landslides and related hazards
- Geotechnical Engineering and Analysis
- Structural Load-Bearing Analysis
- Structural Engineering and Vibration Analysis
- Geotechnical Engineering and Underground Structures
- Dam Engineering and Safety
- Microgrid Control and Optimization
- Multilevel Inverters and Converters
- Structural Behavior of Reinforced Concrete
- Mechanical stress and fatigue analysis
- Geotechnical Engineering and Soil Stabilization
- Vacuum and Plasma Arcs
- Rock Mechanics and Modeling
- Power System Reliability and Maintenance
- Advanced Fiber Optic Sensors
- Civil and Geotechnical Engineering Research
- Cryospheric studies and observations
- Vibration and Dynamic Analysis
- Wind Turbine Control Systems
- Advanced Algorithms and Applications
- High-Voltage Power Transmission Systems
- Catalysts for Methane Reforming
- Tree Root and Stability Studies
- Autonomous Vehicle Technology and Safety
- Structural Engineering and Materials Analysis
Xinjiang University
2025
Chengdu University of Technology
2016-2024
Xi'an Jiaotong University
2024
State Key Laboratory of Electrical Insulation and Power Equipment
2024
Dalian University of Technology
2021
Xuchang University
2015-2020
Zhejiang University
2016-2018
Anhui University of Science and Technology
2018
China University of Mining and Technology
2018
Tongji University
2018
This paper proposes an improved direct power control (DPC) strategy for the rotor-side converter (RSC) and grid-side (GSC) of doubly fed induction generator under unbalanced distorted voltage conditions. The proposed scheme is implemented in a synchronous reference frame with fixed angular speed, so that phase-locked loop can be removed relevant potential instability issues avoided. Besides, sequential separations complex calculations compensating items eliminated direct-resonant method...
This paper proposes an improved direct power control (DPC) strategy of the doubly fed induction generator without phase-locked loop (PLL) under harmonically distorted voltage conditions. The proposed DPC scheme is implemented in a virtual synchronous reference frame, so that potential instability problems caused by PLL can be eliminated. A second-order vector integrator integrated with to suppress harmonic components directly, three different targets smooth stator active and reactive powers,...
Artificial liquid nitrogen freezing technology is widely used in urban underground engineering due to its technical advantages, such as simple system, high speed, low temperature, strength of frozen soil, and absence pollution. However, difficulties undefined range thickness wall gradually emerge during the application process. Thus, analytical solution freezing-temperature field a single pipe established considering temperature soil constant wall. This then applied project. Calculation...
During CO2/HCO3– reduction with renewable biomass, achieving high-efficiency production of the target products is vital but challenging. In this study, an NH2– functional-group-modified MIL-53(Fe) catalyst was synthesized using a facile and efficient method. Under action NH2-MIL-53(Fe) catalyst, clear synergistic effect exhibited on transformation glucose NaHCO3 into formic acid high yield 50% at low reaction temperature (190 °C) via three-pronged route, which mainly involved decomposition...
Purpose Centrifugal model tests can accelerate the characterization of landslides and demonstrate form slope failure, which is an important measure to research its instability mechanisms. Simply observing landslide before after a centrifugal test cannot reveal processes involved in real-time deformation. Electromagnetic sensors have severed as existing method for measurement, however, this approach has significant challenges, including poor signal quality, interference, complex...
Forming openings in the web of steel beam gives rise not only to strength problem but also stiffness problem, that is, deflection may be too large meet requirements. However calculate it is faced region opening three times statically indeterminate, which makes calculation perforated beams extremely complicated. In order avoid solving redundant forces and obtain applicable formulas for determining author this paper have derived by direct differential equations combined using displacement...
A key and urgent scientific issue is how to characterize the complex intergranular contact state mechanical behavior evolution of sand–fines mixed materials then show this contributes static dynamic properties such materials. Both theoretical analyses experimental data suggest that mixes have different states as fines content (FC) increases, can be classified sand-like, in-transition, or fines-like. The capability Rahman semi-empirical formula predict threshold FCth—which distinguishes...
In order to investigate the shear behaviour and main factors of steel-concrete composite beam with web opening under negative moment, simply supported concentrated load was analysis through finite element method.The software ANSYS is used calculate analyse nonlinearly ten specimens.The changing parameters are thickness, reinforcement ratio slab size opening.The indicates that stiffness ultimate capacity will reduce greatly after bending moment.Through increasing thickness concrete slab, its...
Interface slip always exists in steel-concrete composite beams (hereinafter referred to as beams),it will also reduce effect and stiffness increase deflection of beams.If the interface are be calculated,closed solutions can only obtained for simple cases,such simply supported with load cases.For a continuous beam it is difficult obtain closed solution.Moreover often too long complicate application.With finite element method,it efficient calculate there no restriction loads supports.The key...