A5100680432- Electric Motor Design and Analysis
- Multilevel Inverters and Converters
- Sensorless Control of Electric Motors
- Microgrid Control and Optimization
- Silicon Carbide Semiconductor Technologies
- High-Voltage Power Transmission Systems
- Magnetic Bearings and Levitation Dynamics
- Smart Grid and Power Systems
- Power Systems and Renewable Energy
- HVDC Systems and Fault Protection
- Advanced DC-DC Converters
- Magnetic Properties and Applications
- Machine Fault Diagnosis Techniques
- Thermal Analysis in Power Transmission
- Advanced Battery Technologies Research
- Electric and Hybrid Vehicle Technologies
- High voltage insulation and dielectric phenomena
- Wind Turbine Control Systems
- Power Systems and Technologies
- Electromagnetic Compatibility and Noise Suppression
- Power Systems Fault Detection
- Advanced Computational Techniques and Applications
- Gyrotron and Vacuum Electronics Research
- Laser Design and Applications
- Gear and Bearing Dynamics Analysis
Zhejiang University
2016-2025
Chinese Academy of Sciences
2012-2024
Ningbo Institute of Industrial Technology
2024
Northeast Electric Power University
2021-2024
University of Chinese Academy of Sciences
2024
Jiangsu University of Science and Technology
2024
Beihang University
2015-2023
Changchun University of Science and Technology
2017-2023
North China Electric Power University
2012-2023
China Electric Power Research Institute
2010-2023
Titanosilicate zeolites with MFI and *BEA structures are successfully synthesized using raw materials of fumed silica, titanium sulfate, organic templates, zeolite seeds in the absence solvents.
The focus of this paper is the discovery negative association rules. Such rules are complementary to sorts most often encountered in literature and have forms X/spl rarr/ -Y or -X/spl rarr/Y. We present a rule algorithm that finds useful subset valid In generating rules, we employ hierarchical graph-structured taxonomy domain terms. A containing classification information records similarity between items. Given taxonomy, sibling duplicated from positive with couple items replaced, derived...
Melatonin is a neurohormone involved in bone homeostasis. directs remodelling and the role of marrow mesenchymal stem cells (BMMSCs) regulating melatonin-mediated formation-resorption balance remains undefined.Osteoporosis models were established tissue serum collected to test effects melatonin on receptors knocked down, NF-κB signalling pathway receptor activator ligand (RANKL) expression investigated. Communication between osteoclasts was detected with direct-contact or indirect-contact...
This paper focuses on the comparison of electromagnetic performance superconducting permanent magnet (SCPM) generators with two different topologies. The torque capabilities are first investigated. peak is largely restricted by material characteristics (SC) and magnet. SCPM iron-cored rotor stator topology (IRIST) superior to one air-cored in terms capability. Furthermore, flux density, line electromotive force, its ripple, efficiency designed evaluated using numerical model. simulation...
Ultrafine Li2TiO3 nanopowder was synthesized by a sol–gel method. The effect of slight A- and B-site cation nonstoichiometry on the structure, densification microwave dielectric properties investigated. phase presence surface morphology were determined XRD SEM techniques, respectively. average particle size calculated from TEM micrograph powder 6–12 nm. Compared with conventional solid-state method, method could be densified at 1250 °C less micro pores cracks. In addition, temperature...
A maximum torque per ampere (MTPA) control based on virtual signal injection for an interior permanent magnet synchronous motor with fast dynamic response is proposed in this paper. small square wave mathematically injected into the current angle accurately tracking MTPA points. The extracted derivative of electromagnetic utilized to compensate initially set real operation angle. Due absence bandpass and low-pass filters, which are essential sinusoidal scheme, method shows good response. By...
This paper proposes a simple and practical duty cycle modulated direct torque control (DDTC) for permanent magnet synchronous motors. The of active vector is obtained using generator according to the error motor speed, which can avoid complex calculation process associated with conventional DDTC. design details about are illustrated, stability proposed DDTC analyzed, ensures reliable operation system. Experimental results presented validate effectiveness Furthermore, comparative evaluation...
Network reconfiguration is of theoretical and practical significance to guarantee safe economical operation distribution system. In this paper, based on all spanning trees undirected graph, a novel genetic algorithm for electric network proposed. Above all, simplified graph are found. Tie branches obtained with tree subtracted from graph. There one only switch open each tie branch. Decimal identity number branch taken as the optimization variable. Therefore, length chromosome very short....
A flux-weakening control algorithm with an improved stator flux linkage command's adjustment part of interior permanent magnet synchronous motors is proposed in this paper. The current commands are derived from lookup tables, which consider variation motor parameters. merits the maximization torque and high stability. Experimental results demonstrated to verify effectiveness algorithm.
In output-parallel dual active-bridge (OP-DAB) converters, the asymmetrical phase-shift modulation (PSM) and mismatched parameters will result in thermal imbalance, which leads to premature aging failure. To suppress an active management consisted of improved PSM a reliability-based power divider (PD) is proposed. First, losses model based on double-phase-shift control established analyze estimate junction temperature. Second, reason for unbalanced distribution under studied, cycle instead...
Reliable inter-turn short-circuit (ITSC) fault detection is essential for permanent magnet synchronous generators (PMSGs). The harmonics in machine currents and voltages are affected by the bandwidths of dual-loop controllers, which may lead to failure ITSC based on current or voltage signature analysis. In this article, a robust method proposed deal with problem. First, mathematical model PMSG established. Then, behaviors second-order <italic xmlns:mml="http://www.w3.org/1998/Math/MathML"...