A5091387202- High voltage insulation and dielectric phenomena
- Dielectric materials and actuators
- Thermal properties of materials
- Advanced Sensor and Energy Harvesting Materials
- Power Transformer Diagnostics and Insulation
- Wireless Power Transfer Systems
- Electromagnetic wave absorption materials
- Advanced Battery Technologies Research
- Energy Harvesting in Wireless Networks
- Thermal Analysis in Power Transmission
- Aerosol Filtration and Electrostatic Precipitation
- Ferroelectric and Piezoelectric Materials
- Polymer Nanocomposites and Properties
- High-Voltage Power Transmission Systems
- Electrical Fault Detection and Protection
- Lightning and Electromagnetic Phenomena
- Graphene research and applications
- Surface Modification and Superhydrophobicity
- Smart Materials for Construction
- Epoxy Resin Curing Processes
- solar cell performance optimization
- Microgrid Control and Optimization
- HVDC Systems and Fault Protection
- Advanced ceramic materials synthesis
- Aerogels and thermal insulation
South China University of Technology
2016-2025
Xi'an Jiaotong University
2019
Wuhan University of Technology
2019
To reduce the risk imposed by use of defected composite insulators on operation power grids, this paper introduces a nondestructive ultrasonic phased array (UPA) technique that allows effectively test such insulators. The method offers great potential reducing inspection time as well allowing for analyzing components characterized complex geometry. UPA system utilizes an open-ended rectangular waveguide sensor, operating at frequency 2.5 MHz. is simple, safe and relatively inexpensive. In...
Polymer-based dielectric materials with high energy storage performance have become an important part of electric power and electronic systems. But due to the low intrinsic constant polymers, it is usually needed mingle nanofillers improve their properties. However, addition nanoparticles often results in higher loss lower breakdown strength. Herein, using a simple method surface modification BaTiO3, silica polydopamine are coated on significantly improving properties polymer. Meanwhile,...
The regulated output characteristic is crucial for a wireless power transfer (WPT) system. Most studies focus on the single-load system or with multiple evenly distributed loads; however, loads might distribute in space at different distances from supply practice. In this article, WPT hybrid repeater proposed to over long distance. mode of each load can be switched separately realize load-independent constant-current (CC) constant-voltage (CV) output. Based four compensation network...
Abstract Self‐adaptive dielectrics (SADs), with the characteristics of rapid charge dissipation in electric field distortion, is regarded as future material for package insulation advanced electronic devices. The current landscape SADs incapable to achieve tunable nonlinear electrical conductivity and threshold strength due inherent Schottky barrier, significantly limiting application scenarios SADs. Here, a strategy reported construct stepped barrier through virus‐like structures, which are...
Abstract Novel polymer‐based materials with highly thermally conductive and high‐mechanical properties have attracted extensive attention in the field of electronic packaging as thermal interface (TIMs), due to development equipment miniaturization higher power density. However, how achieve high‐thermal conductivity (exceed 5 W/m·K) low‐filling content (below 30 vol%) is still focus attention. Herein, excellent in‐plane were prepared by a simple hot‐pressing strategy, series nanocomposites...
In this study, a titanate coupling agent (TCA) was used to modify the surface of nano ZnO.
Epoxy resin, characterized by prominent mechanical and electric‐insulation properties, is the preferred material for packaging power electronic devices. Unfortunately, efficient recycling reuse of epoxy materials with thermally cross‐linked molecular structures has become a daunting challenge. Here, we propose an economical operable strategy to regenerate waste resin into high‐performance material. Different particle size micro‐spheres (100–600 μm) core‐shell structure obtained through...
The free volume theory and trap model of nano-modified composite materials were combined to explain the breakdown voltage mechanism.
Abstract Flexible nanocomposite dielectrics with high dielectric constant and discharge energy density have broad application prospects in the field of storage. However, tend to a loss. Herein, we prepared composite material ultra‐high by modifying interface between nanoparticles poly(vinylidene fluoride‐co‐hexafluoropropylene) (P[VDF‐HFP]). After coating shell insulating amorphous SiO 2 (~7 nm) outside barium titanate (BT), electric concentration current inside BT particles can be...
Investigations of bulk dielectric properties specimens extracted from in-service aged and UHVDC composite insulator sheds are reported in this paper. The program the study included measurements DC conductivity complex permittivity at frequency range 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-4</sup> -10 xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> Hz various temperatures dry wet (water immersion) conditions. obtained results...
Simultaneously charging multiple devices is a unique advantage of wireless power transfer (WPT). However, it challenging to analyze and optimize the performance multireceiver (multi-Rx) WPT system due intricate coupling among coils. In this article, method for adaptive decoupling between Rxs proposed electronic device charging, which can achieve independent regulation each output in multi-Rx system. A simple feedback control avoids tedious structure position parameters' measurement...
Surface potential decay characteristics of specimens extracted from in-service aged and reference HVDC composite insulator sheds are reported analyzed in this paper. In the experiments, surfaces samples were charged by dc corona was recorded utilizing a non-contact technique. addition, surface bulk conductivities determined used for analyzing means computer simulations their impact on distribution profiles its decay. Based performed trap density distributions, mobility charge carriers field...
Multireceiver wireless power transfer (multi-Rx WPT) technology is a promising method for charging multiple electronic devices simultaneously. However, the cross-coupling effect between Rxs not only leads to correlation of output characteristics each load, but also reduces capability and efficiency WPT systems. This article proposes achieve constant current (CC) with compensation in multi-Rx systems, thus avoiding tedious parameter measurement communication Rxs. The can be compensated...