A5022700566- Multilevel Inverters and Converters
- Electric Motor Design and Analysis
- Sensorless Control of Electric Motors
- Advanced DC-DC Converters
- Microgrid Control and Optimization
- Islanding Detection in Power Systems
- Cell Adhesion Molecules Research
- Magnetic Bearings and Levitation Dynamics
- Industrial Gas Emission Control
- Cellular Mechanics and Interactions
- Silicon Carbide Semiconductor Technologies
- Wastewater Treatment and Nitrogen Removal
- Cellular transport and secretion
- Magnetic Properties and Applications
- Anaerobic Digestion and Biogas Production
Huazhong University of Science and Technology
2017-2022
Midea Group (China)
2022
Southwest Medical University
2019
Chengdu Institute of Biology
2018
Chinese Academy of Sciences
2018
Huazhong University of Science and Technology Hospital
2016
Increasing cell mobility is the basis of tumor invasion and metastasis, therefore a therapeutic target for preventing spread many types cancer. Septins are family cytoskeletal proteins with GTPase activity, play role in important cellular functions, including migration. SEPT9 isoform 1 protein (SEPT9_i1) has been associated breast development enhancement migration; however, exact mechanism how SEPT9_i1 might affect cancer progression remains to be elucidated. Here, we report that expression...
This paper employs grain-oriented electrical steel (GOES) in an axial-flux switched reluctance motor (AFSRM) to improve its torque characteristic, taking advantages of the material's excellent magnetic properties rolling direction. Based on study parameter and switching characteristics AFSRM, GOES can be divided into pieces arranged rotor stator teeth so that flux mainly travels along direction material. AFSRMs with different lamination shapes deviation angles between have been studied...
High-power traction systems usually operate under low-switching-frequency conditions to avoid high switching losses. Synchronized space vector pulsewidth modulation (synchronized SVPWM) is an effective method in for its balanced harmonic performance and implementation complexity. A number of pulse pattern patterns synchronized SVPWM are developed application with different frequency ratios. In this article, the authors systematically analyzed a harmonic-reduced selection strategy considering...
The circulating current harmonics are inherent disadvantages of dual three-phase machines, resulting in additional copper losses, severe distortions, and high switching ripples. Traditional strategies offer many methods to suppress low-order but pay little attention the high-frequency performance improvement over one pulsewidth-modulation (PWM) cycle. Because ability model predictive PWM (MPP) technique predict real-time ripples, this article proposes a variable sequence (VSSPWM) strategy...
The traditional pulsewidth modulation predictive control (PPC) has poor steady-state performance when used for fault-tolerant of multi-phase machine drives, because this paper finds that PPC theoretically a large error tracking ac signals. Thus, an improved regulator is proposed, which can rapidly and accurately track current references realize decoupling among phase currents. proposed method developed by redesigning the transfer function conventional to resonant form, reducing amplitude in...
Low switching frequency operation is preferred in machine drives of high-power applications for controlling the loss power-electronic devices to a tolerable level. Hence, modulation ratio usually low. Synchronized space vector pulsewidth (synchronized SVPWM) method designed reduce current harmonic distortion low-frequency-ratio occasions. However, apparently varies when pulse pattern synchronized SVPWM changes, which makes it impossible fully use available frequency. In this article,...
In high-power applications, the synchronous optimal pulse width modulation (SOPWM) serves as a vital method that achieves an excellent tradeoff between switching losses and current harmonic. However, optimized patterns of SOPWM are constrained due to discrete numbers, which leads underutilization allowable maximum frequency. Therefore, corresponding harmonic could not be reduced low possible. response this issue, with continuous switching-to-fundamental frequency ratio is proposed in...
This paper proposes a control schema for permanent magnet machines, which is synthesized by field-oriented control, synchronous pulse width modulation and phase-lock loop based sampling synchronization. Switching frequency of inverters in electric locomotive applications limited considering switching losses. Lower deteriorates performance e.g., extra machine losses vibrations. Synchronous implemented to reduce voltage harmonics at lower frequency. In the phases are determined rotor position...
This paper proposes a novel predictive duty ratio modulated direct torque control (DTC) for vernier permanent magnet synchronous motor drive to reduce the and flux ripples caused by hardware delay. Compared with DTC, conventional DTC (DDTC) can significantly ripples, while delay still deteriorates performance of DDTC. analyzes influence in detail solves this problem prediction flux. DDTC (PDDTC) maintain dynamic response eliminate effect get better performance. To verify validity proposed...