능동 선형 자석 기어의 자기력 특성 해석 = Magnetic Force Characteristic Analysis of Active Linear Magnetic Gear

다국어 초록 (Multilingual Abstract)

In order to amplify magnetic force in a linear magnetic gear, the high-speed magnet must move more than the low-speed magnet by the amplification ratio. Due to limitations in overall size, this topology has limited applications. In this study, we introduce an active magnetic gear that implements a moving magnetic field instead of the mechanical movement of the magnet by replacing the high-speed side magnet with a linear coil. In the proposed system, a harmonic modulator is added to increase the number of poles of the low-speed magnet, thereby suppressing the decrease in magnetic field strength due to size limitations of the low-speed magnet. The possibility of replacing the existing system was confirmed through harmonic magnetic analysis in the air gap, and the magnetic force change characteristics according to the added modulator variable were simulated.