Optimal Design of the Halbach Array of Magnetic Coupling

In the railway field, research on electrification as well as in the field of traction motors in railway vehicles has been actively conducted. Accordingly, there is a need to develop new technologies that can improve maintenance and system efficiency compared to existing systems in the field of drive devices for railway vehicles, and magnetic coupling is one of the technologies that can meet this. In particular, the permanent magnet can be used to connect the motor and the machine and to transmit power through the airgap without physical contact, thereby contributing to the innovation in the railway field. In this paper, the design method of magnetic coupling was proposed, and the Halbach array was applied and the optimized model was derived for better output and efficiency. And its verifies the validity by comparing and analyzing the characteristics of the model derived by applying the electromagnetic finite element method(FEM).