A5074912093- Advanced DC-DC Converters
- Smart Grid and Power Systems
- Multilevel Inverters and Converters
- Microgrid Control and Optimization
- High-Voltage Power Transmission Systems
- Power Systems and Renewable Energy
- HVDC Systems and Fault Protection
- Power Systems and Technologies
- Silicon Carbide Semiconductor Technologies
- Wireless Power Transfer Systems
- Technology and Security Systems
- Induction Heating and Inverter Technology
- Photonic and Optical Devices
- Islanding Detection in Power Systems
- Analog and Mixed-Signal Circuit Design
- Advanced Computational Techniques and Applications
- Evaluation Methods in Various Fields
- GaN-based semiconductor devices and materials
- Integrated Circuits and Semiconductor Failure Analysis
- Optimal Power Flow Distribution
- Electrostatic Discharge in Electronics
- Semiconductor materials and devices
- Advanced Decision-Making Techniques
- Power System Optimization and Stability
- Power System Reliability and Maintenance
Donghua University
2010-2025
China Southern Power Grid (China)
2020-2025
Hangzhou Medical College
2025
Zhejiang Provincial People's Hospital
2025
Sun Yat-sen University
2016-2024
Hunan University
2012-2024
Xidian University
2017-2024
Harbin University of Science and Technology
2024
State Grid Corporation of China (China)
2010-2023
China University of Mining and Technology
2022
This paper presents the design and hardware implementation testing of 20kVA Gen-1 silicon based solid state transformer (SST), high input voltage isolation requirement are two major concerns for SST design. So a 6.5kV 25A dual IGBT module has been customized packaged specially this low current application, an optically coupled sensor gate driver designed in order to fulfill requirement. also discusses auxiliary power supply structure thermal management stage.
In this paper, a modulation and control method for the new transformerless unified power flow controller (UPFC) is presented. As well known, conventional UPFC that consists of two back-to-back inverters requires bulky often complicated zigzag transformers isolation reaching high rating with desired voltage waveforms. To overcome problem, completely based on an innovative configuration cascade multilevel has been proposed. The offers several advantages over traditional technology, such as...
Abstract The burgeoning need for extensive data processing has sparked enthusiasm the development of a novel optical logic gate platform. In this study, junction field‐effect phototransistors based on molybdenum disulfide/Germanium (MoS 2 /Ge) heterojunctions are constructed as units. This device demonstrates positive photoresponse that is attributed to photoconductivity effect occurring upon irradiation with visible (Vis) light. Under illumination near‐infrared (NIR) optics wavelengths...
In clinical use, bevacizumab has improved the overall survival (OS) and progression-free (PFS) of malignant solid tumors, safe use gradually become mainstream direction clinical, nursing pharmaceutical research. Bevacizumab is a humanized anti-VEGF drug. By binding to VEGF, it loses opportunity activate VEGFR then plays an anti-angiogenic role. addition, more studies have emphasized efficacy safety in treatment brain metastases from tumors. its advantages terms crossing blood-brain barrier,...
In order to meet safety and stability grid-connected requirementsof high-power offshore wind turbines, the 10 MW power generation system composed of medium voltage six phase permanent magnet synchronous generator (MVSPMSG) distributed neutral point clamped (NPC) converter is adopted. On basis, a maximum tracking control (MPPT) method MVSPMSG based on potential balance studied in paper.Firstly, optimal reference torque calculated according speed feedback, double d-q current loop stator...
Parameter estimation is an important problem in nonlinear system modeling and control. Through constructing appropriate fitness function, parameter of could be converted to a multidimensional optimization problem. As novel swarm intelligence algorithm, chicken (CSO) has attracted much attention owing its good global convergence robustness. In this paper, method based on improved boundary (IBCSO) proposed for systems, demonstrated tested by Lorenz coupling motor system. Furthermore, we have...
Transparent radio frequency identification (RFID) integrated circuits based on ZnO thin film transistors were developed by using ratioed logic gates with depletion loads. The fabrication of these employed a simple deuterium plasma treatment to adjust the threshold voltages load transistors. Inverters realized full swing (0.02 ~ 4.99V), high gain -48V/V, large noise margin, and small area. RFID such exhibited ultra-low power dissipation 8.28 μW at supply voltage 2.4 V considerably data rate...
In this brief, two novel diode-triggered siliconcontrolled rectifiers (DTSCRs) with fast turn-on speed have been presented. By embedding current gain amplifier modules (i.e., Sziklai pair and Darlington pair) into the conventional DTSCR, of parasitic bipolar junction transistors (BJTs) on silicon-controlled rectifier (SCR) path in new devices becomes much larger than that counterpart, thus resulting a faster better quasi-static I-V characteristics. As such, triggering characteristic DTSCR...
The waste mine water is produced in the process of coal mining, which main cause flood and environmental pollution. Therefore, economic treatment efficient reuse one research directions mining area at present. It an urgent problem to use intelligent algorithm realize optimal allocation water. In order solve this problem, paper first designs a mathematical model according system, includes rate, cost different stages operational efficiency whole system. Then, hybrid optimization algorithm,...
With the change of temperature, magnetic characteristics electrical steel sheet (ESS) exhibit remarkable variations, in particular, at high-temperature region. If field electromagnetic devices operating under high temperature is analyzed by magnetization data recorded room analysis findings appear to be quite different from real ones. In order understand and apply behavior ESS, a temperature-dependent hysteresis model necessary. this paper, physical background-based Jiles-Atherton (J-A)...
HTS superconducting magnetic energy storage (SMES) system can be utilized to ensure stable operation and high-quality power supply in systems. In SMES system, the conditioning (PCS) interfaces magnet ac controlling active reactive flow. Due high-frequency switching of PCS, voltage distribution on will affect insulation quench detection. Considering interaction between PCS magnet, output characteristics voltage-source-type current-source-type PCSs are analyzed. Subsequently, transient model...
High-efficiency high voltage dc power supply is the core equipment for magnetron in microwave industry. This article presents an input-parallel output-serial modular isolated resonant converter magnetron. However, stray capacitance of isolation transformer brings some challenges, such as turn- <sc xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">off</small> current, longer dead time, increasing gain, and optimization. A simplified model including...
Modular input-parallel output-serial (IPOS) DC-DC converter is becoming a crucial solution for high-voltage applications due to its flexible combination form without switching device pressure limitation. It requires high efficiency, fast response, and wide-range output broader applications. However, the existing solutions cannot simultaneously meet all these requirements. This paper proposes new hybrid structure with interleaved LLC converters DAB converter. The provide most voltage fixed...
Pulse train (PT) controlled switching DC/DC converters possess advantages of simple structure, fast dynamic response, good robustness etc. but also accompanied by undesirable low-frequency oscillation phenomenon when the are operated in continuous conduction mode (CCM). To mitigate oscillations PT buck converters, a novel converter with coupled inductor is proposed this paper. Firstly, mechanism analysed, corresponding suppression method discussed and discrete-time model constructed....
With the rapid development and widespread applications of power electronic converters, strong fault-tolerant capability converters is required since they play important roles in systems. In this paper, a review one most promising topologies for semiconductor open-circuit fault, called four-switch three-phase(FSTP) topology, presented terms modeling analysis, modulation techniques, control strategies. The configuration FSTP voltage source converter (VSC) illustrated. To minimize negative...
In this paper, a current-mode bandgap reference (BGR) circuit with cascode current mirrors and improved frequency compensation for achieving high power supply ripple rejection (PSRR) is presented. By slightly modifying conventional scheme, the PSRR of BGR significantly enhanced. PSRRs two different techniques have been formulated. To our knowledge, first time in literature explicitly demonstrating how due to compensation. The feedback loop stability also analyzed. simulated an example using...
High voltage electric field power supply with a wide output range is widely used in microwave generating, X-ray, ion implantation, and other fields. However, the existing high-voltage supplies cannot meet demand of regulation for high-power magnetrons. In this article, multimode dc–dc converter proposed, which composed two input series connected full-bridge inverters, six inductor–inductor–capacitor resonant networks, types multipliers. The proposed owns operation modes five available ranges...
A system is described that integrates timed Petri nets and queueing networks to model complex, real-time systems. It includes a graphical modeling tool, called TPQN, textual specification language, TPQL, simulator, TPQS. TPQN's capabilities are illustrated by performance analysis of real-time, multitasking scheduler had been previously implemented on top SunOS Sun-3 workstation. simulation package has developed for TPQN allows the behavior various complicated systems under designated network...