A5103254146- Power Transformer Diagnostics and Insulation
- High voltage insulation and dielectric phenomena
- Lightning and Electromagnetic Phenomena
- Refrigeration and Air Conditioning Technologies
- Aerosol Filtration and Electrostatic Precipitation
- Optical Network Technologies
- Neural Networks and Reservoir Computing
- Advanced Memory and Neural Computing
- Petroleum Processing and Analysis
- Power Systems and Renewable Energy
- Real-time simulation and control systems
- Heat Transfer and Optimization
- Heat Transfer and Boiling Studies
- Power Systems and Technologies
North China Electric Power University
2018-2025
Xi'an Jiaotong University
2014
Abstract Among all‐inorganic perovskites, CsPbI 2 Br possesses excellent photovoltaic performance, intrinsic thermal stability and suitable bandgap superior phase‐stability, demonstrating large application potential for single‐junction perovskite solar cells (PSCs) perovskite/organic tandem (TSCs). However, a critical challenge persists in the effective control of crystallization process film, as inadequate can result substantial decrease photoelectric efficiency cells. Herein, simple...
Abstract All‐inorganic CsPbI 3 perovskites film prepared via the low‐temperature solution method often suffers from numerous defects during crystallization process. Passivators used for surface passivation typically contain monofunctional groups, including sulfur, nitrogen, and oxygen. These monodentate groups bind to uncoordinated Pb 2+ by sharing electron pairs, thereby reducing defects. However, anchoring formed is relatively weak susceptible be damage due its low bond strength. Herein, a...
Nanoparticles currently in use are challenged further improving the dielectric strength of insulating oil. There is a great need for new type nanoparticle to promote application oil-based nanofluids electric industries. This paper experimentally investigates effect morphology on pre-breakdown and breakdown properties nanofluids. The positive impulse voltage oil can be significantly increased by up 55.5% presence TiO2 nanorods, 1.23 times that nanospheres. Pre-breakdown streamer propagation...
In order to reveal the effects of nanoparticle materials on prebreakdown and breakdown properties transformer oil, three types materials, including conductive Fe3O4, semiconductive TiO2 insulating Al2O3 nanoparticles, were prepared with same size surface modification. An experimental study strength streamer propagation characteristics investigated for oil nanofluids under positive lightning impulse voltage. The results indicate that type has a notable impact oil. Breakdown voltages are...
The insulation property of transformer oil is prone to decreasing due aging caused by the heat, electricity and other factors under long-term operation, which vital safe operation power equipment. It has been reported that nanoparticles can improve properties oil. However, there no evidence showing effect on oil, modified mechanism not clear. To reveal this paper presents effects TiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub>...
Nanoparticles have exhibited great potential in improving insulating property of liquid and solid dielectrics. To explore their modification mechanism on transformer oil-impregnated pressboards, TiO2 nanoparticles with different diameters 5nm, 10nm, 15nm were synthesized used to prepare oil-based nanofluids. The creeping flashover characteristics both pure paperboards (OPs) nanofluid-impregnated pressboards (NPs) examined under lightning impulse AC voltages. It was found that the NPs is...
This paper presents a theoretical line loss calculation of distribution network containing an uncertainty power wind turbine. First, this establishes the mathematical model considering turbine constraint within sampling period. Then gets multi group output data satisfied constraints through Monte Carlo simulation. By combining with first coefficient method and simulation technique, also generates groups load pseudo measurement test non real time. real-time flow calculation, simulated minimum...
Accurate Partial discharge (PD) detection and location is of great significance for the power cable insulation condition monitoring. To achieve this, an adequate model to analyze pulse propagation needed. Considering complex structure cable, equivalent circuit no longer applicable. In this paper a numerical electromagnetic method, FDTD, applied. analysis wave characteristics in time domain, well-established constructed. By simulating (EM) field inside joint, components electric fields...