기어 특성을 고려한 전기철도용 마그네틱 기어 일체형 영구자석 전동기의 성능 분석

Abstract

This paper is a research paper on the performance analysis of magnetic gear integrated permanent magnet motor for electric railways considering gear characteristics. In the current industry, the drive system consists of mechanical gear and motor, which reduce or decrease the mechanical output speed of the motor by slowing down the mechanical output speed of the motor. However, mechanical gear have disadvantages such as maintenance costs and noise and vibration due to the wear of contact teeth, and the combined mechanical gear and motor driving systems are very complex in structure. Furthermore, research on contactless magnetic gear is actively underway to compensate for the shortcomings of these mechanical gear, but the driving system still has a complex structure with gear and motor coupling. Therefore, these driving systems need to be simplified, and in high-capacity driving systems, such as commercial and railway vehicles, which require high-torque at low speeds, mechanical gear and motor are integrated and lightweight. In this paper, we propose a magnetic gear integrated permanent magnet motor that can be structurally simplified and lightweight compared to conventional driving systems, and performance analysis on magnetic gear integrated permanent magnet motor considering gear characteristics. In conclusion, we propose a model of a magnetic gear integrated permanent magnet motor with high performance characteristics.