A5100414960- MicroRNA in disease regulation
- Microgrid Control and Optimization
- Advanced DC-DC Converters
- Multilevel Inverters and Converters
- Power Systems and Renewable Energy
- Silicon Carbide Semiconductor Technologies
- Islanding Detection in Power Systems
- Wind Turbine Control Systems
- HVDC Systems and Fault Protection
- Optimal Power Flow Distribution
- Power System Optimization and Stability
- Railway Systems and Energy Efficiency
- Advanced Battery Technologies Research
- Distributed Control Multi-Agent Systems
- Adaptive Control of Nonlinear Systems
- Reliability and Maintenance Optimization
- Soil Mechanics and Vehicle Dynamics
- High-Voltage Power Transmission Systems
- Healthcare and Environmental Waste Management
- Electrical Contact Performance and Analysis
- Power Quality and Harmonics
- Risk and Safety Analysis
- Municipal Solid Waste Management
- RNA Research and Splicing
- Maritime Navigation and Safety
Ruijin Hospital
2025
Shanghai Jiao Tong University
2025
Shanghai University
2020-2024
Hunan University
2011-2024
Hunan University of Technology
2018-2024
Southwest Petroleum University
2024
Heilongjiang Bayi Agricultural University
2024
Harbin University
2024
Changsha University of Science and Technology
2023
Northwest University
2023
Energy router is one of the key elements for power electronic-based DC micro-grid (DCMG) cluster system. Traditional ac/dc converter and solid-state transformer can act as an energy router, but their functions interfaces are restricted. In this paper, a novel modular-based (MBER) DCMG has been proposed to extend router. Each module MBER composed isolated dual-active-bridge with high-frequency transformers. The multidirectional exchange mechanism between ac grid shown. Then, operation modes...
This paper presents a new multilevel cascaded-type dynamic voltage restorer (MCDVR) with fault current-limiting function. topology can operate in two operational modes: 1) compensation mode for fluctuations and unbalances 2) short-circuit mode. The function of the MCDVR is performed by activating antiparallel thyristors during fault, deactivating them normal operation. mathematical model system also established this paper. control scheme design optimal parameter selection are outlined based...
Accurate power load forecasting is crucial for ensuring grid stability, optimizing economic dispatch, and facilitating renewable energy integration in modern smart grids. However, real often disturbed by the inherent non-stationarity multi-factor coupling effects. To address this problem, a novel hybrid framework based on adaptive mode decomposition (AMD) improved least squares support vector machine (ILSSVM) proposed effective short-term forecasting. First, AMD utilized to obtain multiple...
With the advantages of simple topology, voltage matching, electrical isolation, and bidirectional energy control, triple active bridge (TAB) has become an exploration attempt for flexible interconnection dc ports. The high-frequency chain current (HFCC) calculation is crucial step in determining zero-voltage-switching (ZVS) regions stresses, providing basis subsequent performance optimization TAB. Due to number switches increasing, TAB's degrees freedom (the phase-shift angles duty cycles)...
As a key factor in ship safety, the effectiveness of Port State Control (PSC) is very important. This study investigates effect PSC inspection on accident and its impacts safety level next inspection, together with inherent attributes time interval between inspections. The judged by number defects found risk this study. Bayesian Network (BN) model employed Search algorithm used to learn structural networks using data from various sources. In addition, ships at different also introduced into...
A triple-active bridge (TAB) can be used as a power conversion unit in three-port DC energy router (DCER) such bridge-based (TAB-DCER). The operational loss of TAB seen key factor affecting the efficiency TAB-DCER. However, RMS value inductor current TAB-DCER increases under single-phase shift (SPS) control, and this greatly system operating losses. use phase-shifted plus PWM (PS-PWM) control reduce current, but its mathematical model is complex, involves difficult calculations. To address...
For cascade H-bridge-based solid state transformer (CHB-based SST), the ripple voltage in its dc bus will restrict optimization of volume and energy density. To suppress control voltage, a new strategy is proposed this article. First, topology CHB-based SST are described briefly. In article, all topologies divided into two categories when considering differences their transfer paths. Then, article analyzes generation mechanism SST, pointing out that taking full use dc/dc stage key point for...
Identifying critical nodes in the power grid is a crucial aspect of system security and stability analysis. However, current methods for identification fall short fully accounting transfer characteristics between consequences node removal on operation. To enhance effective accurate grid, method proposed. This based improved PageRank algorithm node-weighted flow entropy, referred to as IPRA-PFTE. Firstly, equivalent impedance nodes, introduction virtual an obtained. Then entropy derived by...
The AC and DC distribution grids between different voltage levels coexist in smart grids, a reliable connector was needed them. Power Electronic Transformer (PET) suitable for being used as public interface to control power flowing electricity networks regulated bus voltage, because of its abundant functions electrical interfaces. In order take advantage PET served balance junction, an improved droop method micro-grid proposed. can flow bi-directionally by using this method. Then the...
Solid-state circuit breakers (SSCBs) are critical components in the protection of medium-voltage DC distribution networks to facilitate arc-free, fast and reliable isolation faults. However, limited by capacity a single semiconductor device, using semiconductor-based SSCBs at high voltage is challenging. This study presents details 1.5 kV, 63 A SSCB, composed primarily solid-state switch based on three cascaded normally-on silicon carbide (SiC) junction field-effect transistors (JFETs)...
Abstract The Chang 8 reservoir of the Huanjiang Oilfield in Ordos Basin is a tight sandstone with poor physical properties and uneven oil distribution. In this study, effective reservoirs developed on large scale under condition horizontal well volume fracturing technology Member was identified based data core observation, experimental analysis, logging, test, production dynamics, identification standard terms properties, content, comprehensive logging characteristics gas established. This...
A novel high adaptability out-door mobile robot with diameter-variable wheels was proposed in this paper. The has advantages of good climbing obstacle capability, terrain and stability for the self-adapting suspension walking wheel combining efficiency mobility legs. mechanism structure working principle were described. kinematics model dynamic are presented folding unfolding interaction between respectively. simulation MSC.ADAMS been carried out to verify operation reality prototype....
The harmonics flow characteristic of microgrid will be changed when solid‐state transformer (SST) replaces switch or traditional (TT). supply voltage quality SST is related to its control strategy at this time. Therefore, a high for has been proposed in study. First, the characteristics and TT have compared, finding that easy worsen working without power strategy. Then, regulating mechanism analysed. In addition, novel which includes direct loop virtual impedance SST. are computational...