A5017845323- Geomechanics and Mining Engineering
- Machine Fault Diagnosis Techniques
- Advanced DC-DC Converters
- Geotechnical Engineering and Underground Structures
- Civil and Geotechnical Engineering Research
- Multilevel Inverters and Converters
- Microgrid Control and Optimization
- Sensorless Control of Electric Motors
- Industrial Technology and Control Systems
- Magnetic Bearings and Levitation Dynamics
- Advanced Algorithms and Applications
- Engineering Diagnostics and Reliability
- Iterative Learning Control Systems
- Soil, Finite Element Methods
- Electric Power Systems and Control
- Advanced Sensor and Control Systems
- Amino Acid Enzymes and Metabolism
- HVDC Systems and Fault Protection
- Pelvic and Acetabular Injuries
- Autophagy in Disease and Therapy
- Power Transformer Diagnostics and Insulation
- Electric Motor Design and Analysis
- Metabolism and Genetic Disorders
- Wireless Power Transfer Systems
- interferon and immune responses
Hunan University
2020-2025
Heilongjiang University of Chinese Medicine
2024
Xiamen University
2021
University of Science and Technology Beijing
2009-2010
Aiming to suppress the influence of uncertain disturbances in drive control permanent magnet synchronous machines (PMSM), such as parameter uncertainties and load disturbance, a robust anti-interference for angular position tracking PMSM servo system has been proposed this paper. During tracking, being regarded lumped unknown term will be online observed by nonlinear disturbance observer (NDOB), which consequently counteracted backstepping compensator (RBC). The asymptotical stability scheme...
A ResNet-18 based model for the online inter-turn short circuit (ITSC) fault diagnosis of PMSMs widely employed in traction systems electric vehicles and locomotives is proposed this paper, which a data-driven solution robust to bandwidth variation both speed current controllers. It found that extracted features at early stage ITSC are usually quite small will be significantly influenced by bandwidths controllers, potentially lead misjudgment degree. Hence, deep learning designed has...
Paralleled inverters are widely employed in permanent magnet synchronous machine (PMSM) drives to increase system capacity and reliability. Due the discrepancy of paralleled inverters, differential-mode circulating current (DMCC) is a major concern fed PMSM drives. The DMCC would result unbalance efficiency reduction. To address this issue, low-frequency suppression considering dead time compensation proposed article, which can be effective both zero-sequence current. In detail, due control...
Due to the discrepancy of paralleled inverters, zero-sequence circulating current (ZSCC) is a critical issue in inverter fed permanent magnet synchronous machine (PMSM) drive system. The conventional solution this adjust duration two zero vectors; however, it will not be appropriate under discontinuous space vector pulsewidth modulation (DSVPWM) control using only one vector. For overcoming above issues, an active modification (AVM)-based ZSCC suppression and two-step sector indexing...
Receptor-interacting protein 3 (RIP3) has been demonstrated to be a key regulator not only in cell death pathways including apoptosis and necroptosis but also inflammation host immune responses. In this study, RIP3 ortholog named Lc-RIP3 is identified large yellow croaker (Larimichthys crocea). The open reading frame (ORF) of 1524 bp long encodes 507 amino acids (aa). deduced an N-terminal kinase domain C-terminal RHIM domain, the genome organization conserved teleosts with 12 exons 11...
In order to overcome the influence of frequency splitting and changes coil position load, a constant voltage control method based on mutual inductance estimation for series (S-S) wireless power transfer (WPT) system is proposed in this paper. It can simply estimate from voltages currents measured transmitter, which will be used adaptively adjusting consequently guarantee output even under splitting. Its effectiveness then verified prototype WPT system.
The chief composition of methane is marsh gas in coal mine, which a prime energy. So, it important that drainage used effective. optimal design pipeline system for the problem involves many fuzzy and uncertain factors. Applying Matlab function to build an select proper training samples, method based on combining theory with artificial neural networks system. network also information processing theory, can reduce size improve learning speed reliability algorithm. example Dongyu Coal Mine...
In order to obtain the rotor position of deep-sea permanent magnet synchronous motor (DSPMSM) by model-based sensorless methods, mathematical model DSPMSM drive system with parasitic parameters due long-distance power transmission umbilical cable is established. Afterwards, extended Kalman filter (EKF) employed for design controller via. proposed model. The effectiveness solution experimentally verified on a prototype imitated inductors and capacitors.
In this paper, a dual-motor robust backstepping position control combined with five-order linear extended state observer is proposed to improve the capability of anti-interference in gear transmission servo system. A back-stepping controller (DM-RBPC) developed reduce dynamic load tracking error while (FLESO) designed estimate and compensate unknown disturbances unmodeled dynamics. The effectiveness method finally validated on test rig installed two permanent magnet synchronous machines