A5034578907- Electric Motor Design and Analysis
- Magnetic Bearings and Levitation Dynamics
- Magnetic Properties and Applications
- Sensorless Control of Electric Motors
- Induction Heating and Inverter Technology
- Welding Techniques and Residual Stresses
- Engineering Applied Research
Hanyang University
2024
Hanbat National University
2020
The motor in high-power electric vehicle (EV) easily reached the voltage limit because of its large magnetic flux. Therefore, should be designed so that is controlled at limit. To achieve well control condition, interior permanent-magnet synchronous (IPMSM) by field-weakening method after constant torque region. This conducted canceling flux from permanent magnet with stator winding. However, this generates many harmonics. In article, a design effectively controls reducing harmonics...
The interior permanent magnet synchronous motor uses a barrier structure to block the magnetic flux circulating inside rotor and send into air gap. Although airgap density can be increased through barrier, there is disadvantage of torque ripple. Thus, this study conducted determine whether ripple could reduced by changing shape. problem here that inevitably decreases when decreased. Therefore, in study, novel shape bridge proposed model which but not. notch applied analyzed finite-element...
In this paper, the design process of BLDC adopting dual rotor method that can reduce overall size motor while generating same torque as conventional Permanent Magnet is analyzed. A simple selected by obtaining per volume (TRV), and a matching counter electromotive force selecting pole arc magnet through magnetic equivalent circuit Since efficiency low because 120-degree commutation selected, middle stator optimized detailed experimental method. Afterwards, it has advantage being able to...
In this paper, the design process of brushless DC (BLDC) motor adopting dual rotor structure that can reduce overall size while generating same torque as conventional permanent magnet BLDC is analyzed. A simple selected by obtaining per volume (TRV), and a method matching counter electromotive force selecting pole-arc through magnetic equivalent circuit Since efficiency low because 120-degree commutation selected, middle stator optimized detailed experimental method. Afterwards, it has...
In the paper, core loss of SPWM inverter drive IPMSM is analyzed considering high frequency harmonics caused by and field weakening control. The output current has many at region. would affect on each part such as yoke, teeth, shoe, rotor. Therefore, double layer type divided into 6 parts to analyze in part. order calculate harmonics, required. This extracted linking IPMSM. FEM analysis used compare when sinusoidal are applied. result that which most affected FFT applying P.U. system.