Qingyu Wang
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View article: Research on the Data‐Driven Fast Calculation Method of the Temperature Field Distribution of Valve‐Side RIP Bushing Used in UHV DC Converter Transformer
Research on the Data‐Driven Fast Calculation Method of the Temperature Field Distribution of Valve‐Side RIP Bushing Used in UHV DC Converter Transformer Open
Improving the computational efficiency of multi‐physics simulation and constructing a real‐time online simulation method is an important way to realise the virtual–real fusion of entities and data of power equipment with digital twin. In t…
View article: Heat Transfer Characteristics of Novel Resin Impregnated Paper Converter Transformer Valve‐Side Bushing With Two‐Phase Closed Thermosyphon
Heat Transfer Characteristics of Novel Resin Impregnated Paper Converter Transformer Valve‐Side Bushing With Two‐Phase Closed Thermosyphon Open
Resin impregnated paper (RIP) converter transformer valve‐side bushings are the key equipment in converter stations. Local overheating of the RIP core not only reduces the transmission efficiency but also causes insulation failure of conve…
View article: Plasmon-Enhanced Photo-Luminescence Emission in Hybrid Metal–Perovskite Nanowires
Plasmon-Enhanced Photo-Luminescence Emission in Hybrid Metal–Perovskite Nanowires Open
Semiconductor photonic nanowires are critical components for nanoscale light manipulation in integrated photonic and electronic devices. Optimizing their optical performance requires enhanced photon conversion efficiency, for which a promi…
View article: Fast computation of electro-thermal coupling field of ± 400 kV converter transformer valve side bushing based on proper orthogonal decomposition method
Fast computation of electro-thermal coupling field of ± 400 kV converter transformer valve side bushing based on proper orthogonal decomposition method Open
The digital twin technology plays a crucial role in enabling the intelligent operation and maintenance of power equipment, as well as facilitating the digital transformation of the power industry. High voltage (HV) converter transformer va…
View article: Plasmon Enhanced Photo-Luminescence Emission in Hybrid Metal-Perovskite Nanowires
Plasmon Enhanced Photo-Luminescence Emission in Hybrid Metal-Perovskite Nanowires Open
Semiconductor photonic nanowires are critical components for nanoscale light manipulation in integrated photonic and electronic devices. Optimizing their optical performance requires enhanced photon conversion efficiency, for which a promi…
View article: An unraveled mystery: What's the role of brain sphingolipids in neurodegenerative and psychiatric disorders
An unraveled mystery: What's the role of brain sphingolipids in neurodegenerative and psychiatric disorders Open
Sphingolipids are a class of lipids highly expressed in brain, especially in the myelin sheath of white matter. In recent years, with the development of lipidomics, the role of brain sphingolipids in neurological disorders have raised lots…
View article: Application of the quantum effects of single-electron transistors in low-power
Application of the quantum effects of single-electron transistors in low-power Open
As the feature size of transistors approaches the 2nm limit, quantum effects become more pronounced as a result of devices that cannot work properly. Conventional MOSFET architectures are difficult to solve the problems. Therefore, new tra…
View article: A Data‐Driven Fast Calculation Method of GIL Temperature Field Distribution for Real‐Time Monitoring of the Thermal Faults
A Data‐Driven Fast Calculation Method of GIL Temperature Field Distribution for Real‐Time Monitoring of the Thermal Faults Open
In order to achieve the online analysis of the status of the current carrying structure by using the limited number of external sensors in three‐phase integrated gas insulated transmission line (GIL), this paper proposes a data‐driven fast…
View article: Analysis of electrical contact characteristics of strap contacts used in high voltage bushings under eccentric conditions
Analysis of electrical contact characteristics of strap contacts used in high voltage bushings under eccentric conditions Open
The contact finger electrical connection structure is a crucial component of high voltage bushings, and its safety and reliability directly impact the operational stability of the bushing. To investigate electrical contact performance of t…
View article: Phase-field simulation of the effect of grain boundary on fission gas migration in UO<sub>2</sub> fuel
Phase-field simulation of the effect of grain boundary on fission gas migration in UO<sub>2</sub> fuel Open
Grain boundaries are widely recognized as line defect sinks. During reactor operation, vacancies and fission gas atoms within UO 2 fuel grains migrate to the grain boundaries, forming bubbles at these locations. In order to better understa…
View article: A Deep-learning surrogate model for the fast calculation of temperature distribution of ±500kV RIP bushings
A Deep-learning surrogate model for the fast calculation of temperature distribution of ±500kV RIP bushings Open
As a vital component of converter transformers, resin impregnated paper (RIP) bushings withstand high voltage and loading current for the long time operation, which makes the temperature distribution become one of the key issue to characte…
View article: Phase-field simulation on fission gas release behavior of large grain UO<sub>2</sub> fuel
Phase-field simulation on fission gas release behavior of large grain UO<sub>2</sub> fuel Open
In order to predict the release behavior of fission gas in large grain UO2 fuel and provide support for the development of accident tolerant fuel, a phase-field model is used to simulate the release behavior of fission gas in th…
View article: Acoustic carrier signal transmission technology and its potential for in‐site monitoring of sliding electrical contact used in gas‐insulated switchgear/gas‐insulated transmission line
Acoustic carrier signal transmission technology and its potential for in‐site monitoring of sliding electrical contact used in gas‐insulated switchgear/gas‐insulated transmission line Open
A wireless signal transmission technology based on acoustic carrier is proposed, which overcomes the limitation of electromagnetic signal shielding and shows great potential for in‐site monitoring of sliding electrical contact used in gas‐…
View article: Research on the Characteristic of the Electrical Contact Resistance of Strap Contacts Used in High Voltage Bushings
Research on the Characteristic of the Electrical Contact Resistance of Strap Contacts Used in High Voltage Bushings Open
As an important electrical connection component in electrical equipment, the strap contact is directly related to the long-term operation stability of equipment. The electrical contact resistance (ECR) of the electrical connection structur…
View article: Corrosion reaction kinetics and high‐temperature corrosion testing of contact element strips in ultra‐high voltage bushing based on the phase‐field method
Corrosion reaction kinetics and high‐temperature corrosion testing of contact element strips in ultra‐high voltage bushing based on the phase‐field method Open
For the structural characteristics of power transmission equipment such as bushings, the plug‐in structure is mostly used for current‐carrying connections owing to the large size and long distance at high voltage levels. The contact elemen…
View article: Simulation and experimental analysis of three‐dimensional temperature distribution of ±400‐kV converter transformer valve‐side resin impregnated paper bushing under high current
Simulation and experimental analysis of three‐dimensional temperature distribution of ±400‐kV converter transformer valve‐side resin impregnated paper bushing under high current Open
In order to cope with the current engineering demand for increasing the current‐carrying capacity of resin impregnated paper (RIP) bushing, an optimization scheme of RIP bushing was proposed in this paper. Simulation and experimental studi…
View article: Simulation calculation and comparative analysis of three-dimensional temperature field of ultra high voltage through wall bushing under different current carrying capacity
Simulation calculation and comparative analysis of three-dimensional temperature field of ultra high voltage through wall bushing under different current carrying capacity Open
As the key equipment of UHV transmission and transformation line, UHV bushing needs to carry the ultra-high voltage and large current of UHV power system at the same time. When the operating temperature of UHV bushing is too high, the oper…
View article: Simulation analysis and calculation of electric field distribution characteristics of UHV wall bushing
Simulation analysis and calculation of electric field distribution characteristics of UHV wall bushing Open
Facing the unbalanced development of resource distribution and productivity, China needs long-distance power transmission and distribution. The long-distance power transmission will lead to a lot of power loss in the process of transmissio…
View article: Research on the dynamic characteristics of electric field distribution of the ± 1100 kV Ultra high voltage converter transformer valve‐side bushing using weakly ionised gas conductance model
Research on the dynamic characteristics of electric field distribution of the ± 1100 kV Ultra high voltage converter transformer valve‐side bushing using weakly ionised gas conductance model Open
Ultra high voltage (UHV) converter transformer valve‐side bushings are the key equipment indirect current (DC) transmission projects, and are subjected to high voltage and large current with large number of harmonics simultaneously. The el…
View article: In‐situ observation of electrical tree evolution in epoxy dielectrics with internal cracks
In‐situ observation of electrical tree evolution in epoxy dielectrics with internal cracks Open
Gas‐filled internal crack might appear in thermoset materials like epoxy resin during the equipment manufacturing, which would become a vulnerable local region to initiate the electrical tree, thus prone to cause insulation failure. The wi…