A5101901710- Magnetic Bearings and Levitation Dynamics
- Electric Motor Design and Analysis
- Sensorless Control of Electric Motors
- Induction Heating and Inverter Technology
- Vehicle Dynamics and Control Systems
- Engineering Applied Research
- Iterative Learning Control Systems
- Mass Spectrometry Techniques and Applications
- Advanced Photocatalysis Techniques
- Magnetic Properties and Applications
- Lipid metabolism and biosynthesis
- TiO2 Photocatalysis and Solar Cells
- Enzyme Catalysis and Immobilization
- Thin-Film Transistor Technologies
- Vibration Control and Rheological Fluids
- Silicon and Solar Cell Technologies
- Perovskite Materials and Applications
- Nonlinear Dynamics and Pattern Formation
- Automotive and Human Injury Biomechanics
Nanjing University of Aeronautics and Astronautics
2019-2025
Shanxi Medical University
2024
McMaster University
2016
Yokohama National University
2000
The direct torque control (DTC) and force (DFC) method were introduced to reduce the levitation ripple in single-winding bearingless switched reluctance motors (SWBSRMs). However, it still has some disadvantages. Firstly, flux-linkage is not suitable for DTC SWBSRMs. On one hand, can increase ripple. other RMS current be increased then torque-ampere ratio decreased. Secondly, vectors selection also unreasonable, which further. In order solve these problems, an improved based on DFC SWBSRMs...
Compared with the traditional control method, direct torque and force method significantly reduces ripple root-mean-square current of phase winding in single-winding bearingless switched reluctance motor. However, due to unreasonable selection voltage vectors full cycle control, this has some problems, such as too many objects, excessive switching times, low torque–ampere ratio. This article proposes an improved for abovementioned problems. First, turn- <sc...
Direct torque control, direct instantaneous control (DITC), and force strategies have been well applied in bearingless switched reluctance motors (BSRMs), which can obtain good levitation characteristics by hysteresis-loop method. However, method result ripple due to loop width, increases the rms currents. On other hand, commutation at maximum inductance spikes, deteriorate process. Therefore, this article proposes an improved strategy further reduce spikes for BSRMs. In proposed strategy,...
This paper investigates the advantages of a Switched Reluctance Machine for traction applications. The proposed 16/12 SRM is capable low-ripple torque and high power density. design features such as slot fill number turns are discussed in detail. system efficiency studied considering turns, control inverter. loss by different laminations investigated.
The purpose of this paper is the investigation different parameters on performance high efficiency switched reluctance drives. At first a rough design estimation geometry calculated by hand. After that machine designed with PC-SRD, computer-aided software package developed at SPEED laboratory. To reach best for given cross-section and control are varied.
The active vibration damping actuator uses dual-motors to drive two sets of eccentric wheels achieve reduction, but the backlash nonlinearity and load will cause speed position be out synchronization, which influence system reduction effect. traditional parallel control strategy controls dual motors separately without consideration internal coupling effect, leading a poor synchronization performance. In order solve these problems, difference cross-coupled based on multiple-input...
Due to the disadvantages of conventional current control algorithm in dual-winding bearingless switched reluctance motor, such as dependence on mathematical model, large torque ripple and complex strategy, a novel method is proposed this paper simplify algorithm, which named direct instantaneous (DITC) force (DFC). The can greatly ease strategy by regulating levitation independently reduce well. Firstly, hysteresis loop units inductance ascending descending regions are given realize DITC for...
A direct displacement control (DDC) strategy was proposed for bearingless switched reluctance motors (BSRMs) to simplify the torque and control. However, it generates large ripple, leading increased copper loss noise. Another named instantaneous (DITC) force (DFC), can reduce levitation ripples by hysteresis-loop method, which makes output become smoother, yet disadvantage is greatly calculation burden slow response. Therefore, an improved DDC improve response in this paper. For control,...