A5035243168- Power Systems and Renewable Energy
- Wind Turbine Control Systems
- Multilevel Inverters and Converters
- Microgrid Control and Optimization
- Advanced DC-DC Converters
- Advanced Battery Technologies Research
- Robotic Path Planning Algorithms
- Sensorless Control of Electric Motors
- Electric Motor Design and Analysis
- Advanced Algorithms and Applications
- Guidance and Control Systems
- Islanding Detection in Power Systems
- HVDC Systems and Fault Protection
- Electric and Hybrid Vehicle Technologies
- Military Defense Systems Analysis
- solar cell performance optimization
- Photovoltaic System Optimization Techniques
- Smart Grid Energy Management
- Garlic and Onion Studies
- Silicon Carbide Semiconductor Technologies
- Energy Load and Power Forecasting
- Induction Heating and Inverter Technology
- Simulation and Modeling Applications
- Advancements in Battery Materials
- Adaptive Control of Nonlinear Systems
Nanjing University of Chinese Medicine
2024-2025
North Minzu University
2012-2025
Northwestern Polytechnical University
2024
Minzu University of China
2024
Xi'an University of Technology
2012
Heritage Christian University
2006
Abstract Dual active bridge (DAB) converter is an ideal bidirectional DC/DC and serves as a core device for enabling energy transfer in power router systems storage units. In order to reduce losses battery damage during the charging process, minimum current stress control scheme satisfying soft switching conditions proposed. Additionally, three‐stage of achieved based on voltage dual‐loop control. This article analyzes working principles DAB using triple‐phase‐shift (TPS) modulation. By...
Tendinopathy is one of the most prevalent sports injury diseases in orthopedics. However, there no effective treatment or medicine. Recently, discovery tendon stem cells (TSCs) provides a new perspective to find therapeutic methods for Tendinopathy. Studies have shown that oxidative stress will inevitably cause TSCs during tendinopathy, but mechanism has not been fully elucidated. Here, we report damage induced by H
With the rise of charging level new energy vehicles, three-level half-bridge LLC topology is gradually applied to rear stage DC pile. This often adopts a hybrid control mode Pulse Frequency Modulation (PFM) and Phase Shift (PSM) obtain wide output range. However, PFM PSM can not meet Zero Voltage Switch (ZVS) inner tube at low voltage output. In order solve this problem, paper analyses conditions achieve ZVS, proposes Variable Burst (VFBM) maintain dead time minimum effective duty cycle,...
A model predictive control strategy for Zero Voltage Switching (ZVS) was proposed the mid-point clamp three-level dual Active Bridge (DAB) DC-DC converter. Through switching conduction mode of DAB converter, working conditions inductor current in each are analyzed, and range zero-voltage turn-on all switches under single phase shift (SPS) modulation is derived. The spatial equation state established according to mode, purpose fast response achieved through cost function, finally with zero...
Abstract Liver fibrosis, a common pathological process, severely impacts human health, yet effective treatments are lacking. Cuproptosis, newly discovered form of cell death induced by copper ions, triggers cytotoxic stress through sulfenylated protein oligomerization and may offer novel therapeutic strategy for liver fibrosis. However, the mechanisms underlying cuproptosis in fibrosis not well understood. During progression, hepatic stellate cells (HSCs) activate, proliferate, secrete...
Three-dimensional path planning is one of the most important factor to decide efficiency space robot moving. early research through mathematical modeling got some model solve this problem. However, With different scenarios constraints on gradually increased. Intelligent algorithm which has global optimization increased advantages and ability deal with multiple become mainstream. In paper, a hybrid intelligent algorithm-Hybrid Genetic-cuckoo search proposed, can take into account actual size...
<title>Abstract</title> A model predictive control strategy for Zero Voltage Switching (ZVS) was proposed the mid-point clamp three-level dual Active Bridge (DAB) DC-DC converter. Through switching conduction mode of DAB converter, working conditions inductor current in each are analyzed, and range zero-voltage turn-on all switches under single phase shift (SPS) modulation is derived. The spatial equation state established according to mode, purpose fast response achieved through cost...
Due to the use of multi winding high-frequency isolation transformers in three port isolated bidirectional DC–DC converter achieve and power transmission, there is a coupling problem between each port. This article proposes Model Prediction Control (MPC) strategy address this issue. Considering control objectives for Triple Active Bridge (TAB) converter, discrete predictive model TAB established based on phase-shifting modulation average model. The MPC solved optimally controller designed...
This paper presents the analysis and operation of doubly fed induction generator (DFIG) excited by two-stage matrix converter under unbalanced network voltage conditions. Two-stage has a real DC link, but does not contain large link energy storage capacitors compared with conventional PWM converters. Therefore, output current waveform will be directly affected when grid side is unbalanced. A new control scheme, consisting proportional resonant (PR) controller, presented which implemented in...
For photovoltaic power generation systems, the traditional maximum point tracking (MPPT) control algorithm has disadvantages of poor stability and inability to accurately track power. Therefore, this paper proposes a kind nonlinear control-backstepping method based on Lyapunov function fuzzy achieve MPPT. This designs backstepping controller for system, using obtain reference voltage in controller. The topology circuit system consists panel, boost circuit, load. It's shown by simulation...
Indirect matrix converter has a real DC link, but does not contain large link energy storage capacitors compared with conventional PWM converters. Combined the advantages of indirect converter, AC-excited generation technique and vector control scheme, system doubly-fed wind power excited by is established. The realizes rectifier inverter dual space voltage modulation. Based on mathematical models induction generator (DFIG) before grid-connection, it will make DFIG stator changes grid...
<title>Abstract</title> Droop control is commonly used in DC microgrid to maintain the reasonable distribution of power between micro-sources ensure stable and safe operation microgrid. However, traditional state charge balance strategy based on droop will cause problems such as bus voltage drop unreasonable system due its own characteristics. Therefore, a multi-energy storage virtual motor proposed. Firstly, according instantaneous characteristics microgrid, fluctuation load or photovoltaic...
<title>Abstract</title> Due to the use of multi winding high-frequency isolation transformers in three port isolated bidirectional DC-DC converter achieve and power transmission, there is a coupling problem between each port. This article proposes Model Prediction Control (MPC) strategy address this issue. Considering control objectives for Three Active Bridge (TAB) converter, discrete predictive model TAB established based on phase-shifting modulation average model. The MPC solved optimally...
Abstract In DC microgrids, adaptive droop control is often used to allocate power between storage systems when using energy maintain the balance distributed generation units and loads. The introduction of can result in voltage dips at bus. To tackle this issue, paper presents an Adaptive Droop Control (ADC) strategy based on battery’s State Charge (SOC n ). This ensures that distribution battery charging discharging proportionate its SOC value, preventing bus drops. Additionally, proposes...
The electric vehicle charger is composed of the front-stage rectifier and rear-stage DC/DC converter. This paper takes as object, mainly studies battery equalization control strategy in charging discharging process charger. non-isolated Buck-Boost conversion circuit used converter, current controlled to charge discharge battery. And active adopted for difference itself. MATLAB/Simulink simulation realizes charge, battery, so that SOC during minimized, thereby achieving simultaneous tasks....
The proportional resonant control strategy is proposed to realize the of idle load grid connection doubly-fed wind power generation system. Based on mathematical model induction generator, stator flux oriented system doubly fed established. With principle (PR) controller, resonance designed. In this method, active and reactive current components are transformed in stationary frame adjust achieve synchronization Compared with traditional network DFIG, scheme reduces times rotating coordinates...
This paper studies the extended Kalman filter SOC estimation based on hardware-in-the-loop simulation platform. The is used as method of estimation. modeling strategy lithium battery equivalent circuit. Since normal operation has strong nonlinearity, it selected general nonlinear circuit model fully considers charge and discharge rate ambient temperature, uses Fourier function to effectively fit parameters; algorithm estimate state battery, through MATLAB simulation, filtering empirical...
This paper presents a wind storage system composed of permanent magnet synchronous generator, Vienna rectifier, battery and three level bidirectional DC-DC. The motivation for this topology is to make the more reliable, power efficient, cost effective simple control. In control turbine (WT), proposes speed loop backstepping strategy based on Lyapunov stability in generator (PMSG) - VIENNA rectifier. Energy (ESS) adopts three-level DC-DC converter constant Through MATLAB/Simulink, it found...
In photovoltaic power generation systems, traditional algorithms have the disadvantage of poor maximum point tracking (MPPT) stability and cannot accurately find (MPP). order to solve these problems, this paper proposes a backstepping control method based on Lyapunov function, which can not only improve system, but also MPP. By comparing results two through experiments, it is verified that when external environment changes, output waveform Backstepping more stable, fluctuation smaller,...