A5004096199- Electromagnetic Launch and Propulsion Technology
- Advanced Optical Sensing Technologies
- Vacuum and Plasma Arcs
- Electrical Fault Detection and Protection
- Random lasers and scattering media
- HVDC Systems and Fault Protection
- Advanced Optical Imaging Technologies
- Particle accelerators and beam dynamics
- Energetic Materials and Combustion
- Pulsed Power Technology Applications
- Image and Video Quality Assessment
- Plasma Diagnostics and Applications
- Computer Graphics and Visualization Techniques
- Neural Networks and Reservoir Computing
- Photonic and Optical Devices
- Thermal Analysis in Power Transmission
Sichuan University
2023
Dalian University of Technology
2020-2022
Vacuum arc commutation is an important process in natural-commutate hybrid direct current (DC) circuit breaker (NHCB) interruption, as the duration of vacuum will directly affect arcing time and interrupting NHCB. In this paper, model NHCB was established by simplifying solid-state switch (SS) voltage. Through theoretical analysis experiments, characteristics were studied. The mathematical formula effect main parameters on obtained, changing law influence explored. concept coefficient...
In this Letter, we propose a simple and robust method that have named an optimal accumulation algorithm (OAA) to modulate scattered light field. Compared with the simulated annealing (SAA) genetic (GA), OAA is very robust, say it has strong anti-disturbance capability. experiments, field through ground glass polystyrene suspension was modulated, where supported dynamic random disturbance. It found that, even if too thick see ballistic light, can still effectively, while SAA GA completely...
It is a valuable subject for academic community how to limit the short-circuit current within breaking capacity of breakers at all levels. Liquid metal limiter (LMCL) can tackle this challenge with its unique advantages. However, liquid and cavity existing LMCL are severely eroded, which limits application. From perspective increasing response speed, improving current-limiting efficiency, reducing erosion, article designs three LMCLs polymethyl methacrylate (PMMA) material, ZnO pulse power...
The armature of the electromagnetic reconnection launcher (EMRCL) plays a key role in accelerating large-mass loads, which have attracted extensive attention past years. In this article, effects thickness, length, and width on performance EMRCL are analyzed for designing high-strength high-efficiency armature. First, according to deformation Von Mises’ stress distribution structure field, thickness should be six times skin depth. Then, orthogonal experiment method results demonstrate that...
To achieve current balance between parallel‐connected insulated gate bipolar transistors (IGBTs) of a DC microgrid hybrid circuit breaker (DC MHCB), it is simple and effective method to add impedance in IGBTs, but this will also affect the vacuum arc commutation MHCB. The focus paper effects adding on characteristics. By constructing simplified model case impedance, effect theoretically derived. test established, presence or absence externally applied transverse magnetic field (TMF)...
Recently, effectively improving the energy conversion efficiency (ECE) of electromagnetic launch (EML) systems has been one most pressing problems facing engineering applications in defense technology, transportation, and so on. This article offers a solution to directly increase inductance gradient ( <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$L ^{\prime} $ </tex-math></inline-formula> ) improve...
Speed and quality of wavefront shaping (WFS) are considered to be two major challenges in anti-scattering optical information transmission. Confronted with this, a novel optimization approach, namely Point Guard algorithm (PGA), is proposed based on the movement strategies (PG) professional basketball association. The PGA manipulates interference by encoding digital micromirror device (DMD). performance can only affected one parameter (boundary value, BV), strategy self-adaptive updating...
The armature of the electromagnetic reconnection launcher (EMRCL) is a critical factor in accelerating large-mass loads, which can convert energy into kinetic energy. In order to design high-efficiency armatures that launch payloads, effects material, armature, and coil distance on EMRCL performance are analyzed. A three-stage platform built verify accuracy simulation results. Simulation experimental results show efficiency improvement copper material more significant as payload mass...