A5086951846- Energy Harvesting in Wireless Networks
- Wireless Power Transfer Systems
- Advanced Battery Technologies Research
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Advanced DC-DC Converters
- Geological and Geochemical Analysis
- Advanced Computational Techniques and Applications
- Advanced Measurement and Detection Methods
- Advanced Surface Polishing Techniques
- Advanced Image and Video Retrieval Techniques
- Microgrid Control and Optimization
- Simulation and Modeling Applications
- Methane Hydrates and Related Phenomena
- Optical measurement and interference techniques
- Topic Modeling
- Advanced Measurement and Metrology Techniques
- Optical Systems and Laser Technology
- Natural Language Processing Techniques
- Manufacturing Process and Optimization
- Geophysics and Gravity Measurements
- Distributed and Parallel Computing Systems
- Image and Video Stabilization
- Optical Wireless Communication Technologies
- Multilevel Inverters and Converters
Inner Mongolia University of Technology
2009-2025
Southwest Jiaotong University
2006-2024
Henan University of Science and Technology
2017-2024
Daqing Oilfield General Hospital
2024
Shenyang Aerospace University
2024
Daqing Oilfield of CNPC
2024
Zhejiang University
2022-2023
Naval University of Engineering
2023
University of Hong Kong
2022
Ministry of Education of the People's Republic of China
2020-2021
[1] Measurements at ∼400 campaign-style GPS points and another 14 continuously recording stations in central Asia define variations their velocities both along across the Kyrgyz neighboring parts of Tien Shan. They show that longitude Kyrgyzstan Tarim Basin converges with Eurasia 20 ± 2 mm/yr, nearly two thirds total convergence rate between India this longitude. This high suggests Shan has grown into a major mountain range only late evolution India-Eurasia collision. Most within upper crust...
To regulate the output voltage of inductor–capacitor–capacitor-series ( <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LCC</i> -S) compensated wireless power transfer (WPT) system, a hybrid control strategy phase shift modulation (PSM) and switch-controlled capacitor is presented in this article. In proposed strategy, -S WPT system can realize wide regulation with zero switching (ZVS), reactive current resonant tank be minimized whole range....
VCells, the proposed Edge-Weighted Centroidal Voronoi Tessellations (EWCVTs)-based algorithm, is used to generate superpixels, i.e., an oversegmentation of image. For a wide range images, new algorithm capable generating roughly uniform subregions and nicely preserving local image boundaries. The undersegmentation error effectively limited in controllable manner. Moreover, VCells very efficient with core computational cost at O(K√n(c)·N) which K, n(c), N are number iterations, pixels,...
Centroidal Voronoi tessellations (CVTs) are special whose generators also the centers of mass (centroids) regions with respect to a given density function and CVT-based methodologies have been proven be very useful in many diverse applications science engineering. In context image processing its simplest form, algorithms reduce well-known <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">k</i> -means clustering easy implement. this paper, we develop...
In this article, a zero-voltage switching (ZVS) series-series compensated wireless power transfer (WPT) converter with phase shift modulation is proposed, which can realize output current regulation over wide range. the proposed WPT converter, an auxiliary LCL resonant network connected between two midpoints of H-bridge legs inverter to provide peak for ZVS operation during dead time, low rms decrease conduction losses. To reduce volume network, integrated coil structure applied and magnetic...
A LCC-S compensated wireless power transfer (WPT) system with dual decoupled receive coils and a cascaded PWM regulator is proposed in this brief. The coils, comprising of bipolar coil unipolar coil, provide two paths. Most input transferred to load directly through while only small portion the regulator, which can reduce loss effectively. output voltage WPT regulated by thereby communication links (WCLs) not required feedback control loop, leads simple circuits good stability. Compared...
Inductor–capacitor–capacitor-series (LCC-S) compensation topology has been widely used in inductive power transfer (IPT) systems due to its constant coil current regardless of the load and coupling coefficient. Usually, inductance transmitter is sensitive misalignments magnetic coupler when asymmetrical structure with a smaller size receiver adopted. The fluctuation will increase losses primary inverter. To compensate inductance, digital switch-controlled capacitor (D-SCC) for maximum...
The bipolar dc microgrid system is considered a greatly promising solution to interface various renewable energy sources and emerging loads due its advantages in efficiency reliability. However, pole voltage imbalance lack of superior power conversion topologies limit the development application systems. In this context, article proposes family multiport converters based on voltage-multiplying rectifiers achieve symmetrical output between buses. proposed topologies, single-stage conversion,...
Grid-connected inverters are the key part in renewable energy power generation systems. Usually, phase-locked loop (PLL) is adopted grid-connected to achieve synchronization. However, prior-art works have revealed that negative resistance behavior low-frequency band caused by PLLs may lead system instability under weak grids. In this article, first, a comprehensive small-signal output impedance modeling of <italic xmlns:mml="http://www.w3.org/1998/Math/MathML"...
Subharmonic control (SHC) is an excellent method for wireless charging system because it easy to achieve full-load range soft switching and unity power factor. However, in existing works, SHC only applied the with primary series compensation topology, which has drawbacks of low degrees design freedom, high sensitivity misalignments no open-circuit protection. To overcome these issues, this article, systematic synthesis high-order topology (PHCT) WPT identified terms general T-branch...
The single shot multibox detector (SSD) is one of the most important algorithms in single-stage target detection, having characteristics multiscale detection and rapid speed. However, effective SSD feature layers are independent another, which can lead to object difficulties. To address this problem, we proposed an improved algorithm. First, global attention mechanism (GAM)—which enhance spatial channel information—was introduced into layer. module GAM was improved. Second, a fusion...
To address the high bus issue of conventional boost or buck-boost power factor correction (PFC) integrated resonant dc/dc type single-stage converters under high-voltage input, a family ac/dc interleaved PFC and circuits is proposed in this article. Unlike traditional solutions, ac input voltage three structures divided into two parts by capacitors before rectifier bridge. Thus, high-frequency diodes one filter capacitor are omitted. Furthermore, reduced can be simultaneously obtained with...
Inductive power transfer (IPT) systems with multiple output voltages are potential to supply a variety of loads simultaneously. This article proposes an IPT system semiactive rectifier cells (SARCs) connected in series at the receiver (Rx) side. These SARCs independent each other and their can be regulated individually single coil, which reduces cost volume. The proposed configuration has advantages high flexibility, simple control, no cross regulation. Considering that SARC may cause...
In inductive power transfer (IPT) applications, load-independent output has become more popular. This letter proposes a reconstructed S-LCC topology with dual-type outputs, which can realize constant current (CC) and voltage (CV) simultaneously. The proposed uses the same number of passive components, inductor or capacitor, as conventional while provides results in reduced cost size. Such outputs could be treated two independent ports without using any decoupling methods, simplify parameter...
In this article, a subharmonics switching technique named bifrequency pulse train (BF-PT) control for wireless battery charging system with tapped transmitter (Tx) winding is proposed to regulate the output power against variation of load and coupling coefficient. The Tx spilt into two subwindings: subwinding I connected inverter while II in open circuit. current voltage can be acquired by measuring induced II, respectively, without dual-side communication. BF-PT control, which contains...
Research Article| April 18, 2018 Crustal Deformation in the Hutubi Underground Gas Storage Site China Observed by GPS and InSAR Measurements Qiao Xuejun; Xuejun aKey Laboratory of Earthquake Geodesy, Institute Seismology, Administration, Hongshancelu No. 40, Wuhan 430071, Hubei, China, wangdijin@126.com Search for other works this author on: GSW Google Scholar Chen Wei; Wei Wang Dijin; Dijin Nie Zhaosheng; Zhaosheng Zhengsong; Zhengsong Li Jie; Jie bEarthquake Administration Xinjiang Uygur...
An asymmetrical hybrid-controlled half-bridge LCC resonant converter which integrated a buck–boost and is proposed. It benefits with wide soft switching range, low conduction loss high power density. By utilising an hybrid control strategy, its frequency duty ratio can be adjusted simultaneously. The proposed maintains output voltage regulation zero-voltage of switches in input load variation range. Experiment results 500 W prototype are provided to verify the theoretical analysis results.
Inductive power transfer (IPT) technology becomes highly attractive option for wireless battery charging applications. To fulfill the charge profile of packs, wide output voltage regulation is always necessary. In this paper, an improved LCC-S compensated IPT system utilizing variable frequency switched capacitor control put forward. Compared with traditional compensation topology, extra connected in series inductor to form a symmetrical T-network. Switched utilized regulate equivalent...
Breakthrough pressure of natural gas in rock is an important evaluation parameter reservoir development. In this study, experimental measurements porosity and permeability the caprock core were carried out. A digital model was obtained by body rendering CT (Computed Tomography) slices using Avizo software. Then, grid imported into Fluent software for a numerical simulation breakthrough core. The innovations paper include (1) accurate calculation method cap based on VOF method; (2) performs...