A5100689061- High voltage insulation and dielectric phenomena
- Concrete and Cement Materials Research
- Innovations in Concrete and Construction Materials
- Additive Manufacturing and 3D Printing Technologies
- Electrostatic Discharge in Electronics
- Power Transformer Diagnostics and Insulation
- Lightning and Electromagnetic Phenomena
- BIM and Construction Integration
- Microwave Engineering and Waveguides
- Dielectric materials and actuators
- Concrete Corrosion and Durability
- Smart Materials for Construction
- Concrete Properties and Behavior
- Building materials and conservation
- Advanced Sensor and Energy Harvesting Materials
- Surface Modification and Superhydrophobicity
- Innovative concrete reinforcement materials
- Grouting, Rheology, and Soil Mechanics
- Thermal Analysis in Power Transmission
- Radio Frequency Integrated Circuit Design
- Electrical Fault Detection and Protection
- Electric Motor Design and Analysis
- Phase Change Materials Research
- Land Use and Ecosystem Services
- Thermal properties of materials
Sichuan University
2020-2024
China University of Mining and Technology
2018-2024
Southeast University
2021-2024
Feng Chia University
2024
Qingdao Agricultural University
2024
The Synergetic Innovation Center for Advanced Materials
2021-2022
University of Washington
2021
China Academy of Launch Vehicle Technology
2017
Tsinghua University
2011
Yanshan University
2010
Abstract This study systematically investigates the hardened properties, durability and void distribution of large-scale 3D printed cement-based materials (3DPC). Experimental results indicate that 3DPC has higher compressive flexural strengths, lower drying shrinkage, better resistance against sulfate attack carbonation than mold-cast materials, but to frost damage chloride ion penetration. Computed tomography scanning reveals voids in are strongly oriented along printing direction....
The undulating appearance of 3D-printed concrete (3DPC) is an essential feature that impacts the integrity and stability multilayer structure, yet related evaluation parameters have rarely been proposed. This study proposed a quantitative through on-site 3D scan technology to impel direct precise understanding surface quality 3DPC, especially with coarse aggregates. Firstly, 8-layer 3DPC walls are produced at four different printer printing rates then scanned. After point cloud correction,...
The partial discharge (PD) in inverter-fed motors generated from high frequency and short rise time impulsive voltage are more complex than traditional sinusoidal operated due to the noise initiated fast switching power electronics devices. Available PD sensors related technology for DC cannot be used at repetitive conditions. This work aims report design of antenna with optimized geometry satisfied parameters detect voltage. is verified influence both impulse test configuration on features...
The urgent need for power transmission is the reason leading research on safer operation of high-voltage cables. These cables are emerging as an efficient technology underground transmission. However, electrochemical corrosion aluminium (Al) metal sheaths in these a common and challenging degradation process. Herein, mechanisms analysis investigated by using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), impedance (EIS) laboratory-designed...
Condition assessment is significant to the maintenance management of high-voltage (HV) cross-linked polyethylene (XLPE) power cables. This article presents a condition method for corrugated aluminum sheathed cables based on evolved gas analysis (EGA). First, simultaneous thermogravimetric (TG) and mass spectrometric analyses pyrolysis each cable material were conducted characterize generation caused by thermal faults. Simulated experiments designed investigate electrical The results show...
Silicone grease (SG) is used for lubrication during cable accessory installation and can penetrate into the silicone rubber (SiR), leading to properties deterioration of SiR. In this study, effects SG on breakdown characteristics cross-linked polyethylene (XLPE)–SiR interface are investigated. First, variation XLPE–SiR voltage with coating time experimentally explored. The significantly increases after applied, remains stable times up approximately 144 h then rapidly decreases; minimum lower...
This paper presents the surface modification and charge transportation mechanism of thin polyimide films. Here, we demonstrate that these films, by using fluorine gas-phase, improves charges mitigation and, thereafter, suppress space charges. The experimental results indicate thermal step current for coated films reduce significantly in comparison to pure layer coating helps release charge, injection from electrode, provide hindrance penetrate into bulk higher degree disappearing growth.
This paper addresses the growing concern over air pollutant emissions (NOx, SOx, PM, CO2) from ocean-going vessels in harbor areas and role of Onshore Power Supply (OPS) systems mitigating these during vessel berthing. However, slow progress global shore power facilities is attributed to safety- specification-related concerns. Our study conducts a comprehensive analysis, comparing international regulations, with specific focus on IEC/IEEE 80005-1 standard guidelines various ship...
Single-inductor multiple-output (SIMO) converters present a promising technology for enabling fine-grained supply-voltage (V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">dd</sub> ) domains in SoCs. With efficiencies approaching those of buck converters, SIMO allow multiple to share single inductor, thus reducing the use bulky passive components [1-5]. However, suffer from poor transient response and significant ripple, requiring extensive V...
In this study, the inhibition effect of electrical treeing is investigated in a cross-linked polyethylene (XLPE) cable under targeted movement rejuvenation fluid induced by an electric field. First, concentration around defects characterized Fourier transform infrared (FTIR) spectroscopy different voltages, application durations, and temperatures. These results show that with increasing applied voltage, duration, temperature, increases nonlinearly. Next, features samples without field...
In order to research the actual state of wind power generation in laboratory, a 22KW experimental platform using SCIG was developed. The includes: simulator, L-speed gear box, back-to-back converter, filter inductor and 10-ton base. simulator is composed by ABB's ACS550 inverter, three-phase squirrel-cage induction motor reduction box. this paper, current mainstream three kinds variable-speed constant frequency system are compared analyzed, highlighting significance study basic functions...