Frequency Domain Solver를 이용한 양측식 평판형 선형유도전동기의 성능해석에 관한 연구 (Study on the Performance Analysis of Double Side Flat Type Linear Induction Motor Using Frequency Domain Solver)

In this study, the thrust force of the flat type linear induction motor (LIM) was calculated by using the finite element analysis (FEA) of the frequency domain solver(FDS) method using the assumption that all physical quantities are the sinusoidal functions of the same frequency. For the analysis model of a simple linear induction motor adopting the concept of current sheet, a FEA using a time domain solver method(TDS), which can include the movement of objects and various frequency components, is performed.
Through this, it was confirmed that the analysis error of the FDS is caused by the spatial harmonics component included in the moving magnetic field of the air gap. Finally, the thrust force of a flat type LIM of a specific specification was calculated using a FDS and a TDS, respectively. And the analysis result and analysis time between two analysis methods were compared. In addition, the analysis error and analysis time between the two methods were compared quantitatively while changing key design parameters such as air gap length and pole pitch. Through this, the feasibility study of the design of the flat type LIM using the FDS method is examined.

In this study, the thrust force of the flat type linear induction motor (LIM) was calculated by using the finite element analysis (FEA) of the frequency domain solver(FDS) method using the assumption that all physical quantities are the sinusoidal functions of the same frequency. For the analysis model of a simple linear induction motor adopting the concept of current sheet, a FEA using a time domain solver method(TDS), which can include the movement of objects and various frequency components, is performed.
Through this, it was confirmed that the analysis error of the FDS is caused by the spatial harmonics component included in the moving magnetic field of the air gap. Finally, the thrust force of a flat type LIM of a specific specification was calculated using a FDS and a TDS, respectively. And the analysis result and analysis time between two analysis methods were compared. In addition, the analysis error and analysis time between the two methods were compared quantitatively while changing key design parameters such as air gap length and pole pitch. Through this, the feasibility study of the design of the flat type LIM using the FDS method is examined.